Introduction Course Plan Textbooks and References Evaluation Scheme Notes
1. Introduction to Communication Systems
Y. Yoganandam, Runa Kumari, and S. R. Zinka
Department of Electrical & Electronics EngineeringBITS Pilani, Hyderbad Campus
August 3, 2015
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Outline
1 Introduction
2 Course Plan
3 Textbooks and References
4 Evaluation Scheme
5 Notes
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Outline
1 Introduction
2 Course Plan
3 Textbooks and References
4 Evaluation Scheme
5 Notes
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
What is a Communication System (CS)?
You tell me the definition(s).
For example, runners, carrier pigeons, drum beats, and torches*, etc.
These are superseded by electrical communication systems, which cantransmit signals over much longer distances (even to distant planets and
galaxies) and at the speed of light.
Communication technology is alleviating the energy crisis ... Can you give afew examples?
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
What is a Communication System (CS)?
You tell me the definition(s).
For example, runners, carrier pigeons, drum beats, and torches*, etc.
These are superseded by electrical communication systems, which cantransmit signals over much longer distances (even to distant planets and
galaxies) and at the speed of light.
Communication technology is alleviating the energy crisis ... Can you give afew examples?
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
What is a Communication System (CS)?
You tell me the definition(s).
For example, runners, carrier pigeons, drum beats, and torches*, etc.
These are superseded by electrical communication systems, which cantransmit signals over much longer distances (even to distant planets and
galaxies) and at the speed of light.
Communication technology is alleviating the energy crisis ... Can you give afew examples?
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
What is a Communication System (CS)?
You tell me the definition(s).
For example, runners, carrier pigeons, drum beats, and torches*, etc.
These are superseded by electrical communication systems, which cantransmit signals over much longer distances (even to distant planets and
galaxies) and at the speed of light.
Communication technology is alleviating the energy crisis ... Can you give afew examples?
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
What is a Communication System (CS)?
You tell me the definition(s).
For example, runners, carrier pigeons, drum beats, and torches*, etc.
These are superseded by electrical communication systems, which cantransmit signals over much longer distances (even to distant planets and
galaxies) and at the speed of light.
Communication technology is alleviating the energy crisis ... Can you give afew examples?
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Few Electrical Communication Systems
• Telegraph & Teletype Messaging
• Telecommunication
• Radio & Television Broadcasting
• Fiber Optic Communication Systems
• Mobile Wireless Communications
• Satellite Communications
• Wi-Fi, Wi-Max, etc
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Few Electrical Communication Systems
• Telegraph & Teletype Messaging
• Telecommunication
• Radio & Television Broadcasting
• Fiber Optic Communication Systems
• Mobile Wireless Communications
• Satellite Communications
• Wi-Fi, Wi-Max, etc
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Basic Communication System
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Basic Communication System
Inputmessage
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Basic Communication System
Inputsignal
Inputtransducer
Inputmessage
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Basic Communication System
Inputsignal
Inputtransducer Transmitter
Transmittedsignal
Inputmessage
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Basic Communication System
Inputsignal
Inputtransducer Transmitter
Transmittedsignal
ChannelInput
message
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Basic Communication System
Inputsignal
Inputtransducer Transmitter
Transmittedsignal
Channel
Recivedsignal
ReciverInput
message
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Basic Communication System
Inputsignal
Inputtransducer Transmitter
Transmittedsignal
Channel
Recivedsignal
Reciver
Outputsignal
Outputtransducer
Inputmessage
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Basic Communication System
Inputsignal
Inputtransducer Transmitter
Transmittedsignal
Channel
Recivedsignal
Reciver
Outputsignal
Outputtransducer
Outputmessage
Inputmessage
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Basic Communication System
Inputsignal
Inputtransducer Transmitter
Transmittedsignal
Channel
Recivedsignal
Reciver
Outputsignal
Outputtransducer
Outputmessage
Inputmessage
Distortionand
noise
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Typical Today’s Communication System
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Typical Today’s Communication System
SourceInput
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Typical Today’s Communication System
SourceCoder
SourceInput
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Typical Today’s Communication System
SourceCoder
ChannelCoder
SourceInput
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Typical Today’s Communication System
SourceCoder
ChannelCoder Modulation
SourceInput
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Typical Today’s Communication System
SourceCoder
ChannelCoder Modulation D/A
SourceInput
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Typical Today’s Communication System
SourceCoder
ChannelCoder Modulation D/A
SourceInput
Transmitter
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Typical Today’s Communication System
SourceCoder
ChannelCoder Modulation D/A
SourceInput
Distortion and NoiseChannel
Transmitter
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Typical Today’s Communication System
SourceCoder
ChannelCoder Modulation D/A
SourceInput
SourceDecoder
ChannelDecoder Demodulation A/D
ReconstructedSignal
Output
Distortion and NoiseChannel
Transmitter
Receiver
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Analog and Digital Communication Systems
First of all, what is meant by the word digit?
Now, can you guess the difference between analog and digital?
If you treat an entire textbook (written in English) as a signal, then is itanalog or digital?
Can you give me an example for one of the oldest binary digital systems?
Generalization of binary system : M-ary system
Before leaving this slide, give me a few examples for analog systems ...
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Analog and Digital Communication Systems
First of all, what is meant by the word digit?
Now, can you guess the difference between analog and digital?
If you treat an entire textbook (written in English) as a signal, then is itanalog or digital?
Can you give me an example for one of the oldest binary digital systems?
Generalization of binary system : M-ary system
Before leaving this slide, give me a few examples for analog systems ...
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Analog and Digital Communication Systems
First of all, what is meant by the word digit?
Now, can you guess the difference between analog and digital?
If you treat an entire textbook (written in English) as a signal, then is itanalog or digital?
Can you give me an example for one of the oldest binary digital systems?
Generalization of binary system : M-ary system
Before leaving this slide, give me a few examples for analog systems ...
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Analog and Digital Communication Systems
First of all, what is meant by the word digit?
Now, can you guess the difference between analog and digital?
If you treat an entire textbook (written in English) as a signal, then is itanalog or digital?
Can you give me an example for one of the oldest binary digital systems?
Generalization of binary system : M-ary system
Before leaving this slide, give me a few examples for analog systems ...
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Analog and Digital Communication Systems
First of all, what is meant by the word digit?
Now, can you guess the difference between analog and digital?
If you treat an entire textbook (written in English) as a signal, then is itanalog or digital?
Can you give me an example for one of the oldest binary digital systems?
Generalization of binary system : M-ary system
Before leaving this slide, give me a few examples for analog systems ...
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Analog and Digital Communication Systems
First of all, what is meant by the word digit?
Now, can you guess the difference between analog and digital?
If you treat an entire textbook (written in English) as a signal, then is itanalog or digital?
Can you give me an example for one of the oldest binary digital systems?
Generalization of binary system : M-ary system
Before leaving this slide, give me a few examples for analog systems ...
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Analog and Digital Communication Systems
First of all, what is meant by the word digit?
Now, can you guess the difference between analog and digital?
If you treat an entire textbook (written in English) as a signal, then is itanalog or digital?
Can you give me an example for one of the oldest binary digital systems?
Generalization of binary system : M-ary system
Before leaving this slide, give me a few examples for analog systems ...
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Analog vs Digital & Continuous vs Discrete
Understanding the difference among the terms analog, digital, continuous,and discrete is very very important.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Continuous Analog Signal
x(t)
1234567
t
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Discrete Analog Signal
x(t)
1234567
t
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Discrete (8-ary) Digital Signal
x(t)
1234567
t
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Continuous (8-ary) Digital Signal
x(t)
1234567
t
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
A Continuous (Binary) Digital Signal – PCM
x(t)
1234567
t000 100 101 100 011 100 110 111 101 011 011 100 100
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Pulse Code Modulation (PCM)
Even though PCM is invented as early as 1926. It was the transistor thatmade PCM practicable in early 60s.
Average power of a PCM signal is less. However, the price paid is theincrease in the signal bandwidth.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Pulse Code Modulation (PCM)
Even though PCM is invented as early as 1926. It was the transistor thatmade PCM practicable in early 60s.
Average power of a PCM signal is less. However, the price paid is theincrease in the signal bandwidth.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Pulse Code Modulation (PCM)
Even though PCM is invented as early as 1926. It was the transistor thatmade PCM practicable in early 60s.
Average power of a PCM signal is less. However, the price paid is theincrease in the signal bandwidth.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Power vs Bandwidth
Two primary communication resources are the bandwidth and thetransmitted power. In a given communication channel, one resource may be
more valuable than the other, and the communication scheme should bedesigned accordingly.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Distortion – Linear & Non-linear Distortions
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Distortion – Linear & Non-linear Distortions
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Distortion – Linear & Non-linear Distortions
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Distortion – Linear & Non-linear Distortions
vi
vo
vi
vo
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Noise
External Noise:
• Interference from signals transmitted on nearby channels• Faulty contact switches for electrical equipment• Automobile ignition radiation• Fluorescent lights• lightning• Electrical storms• Solar and Intergalactic radiation
Internal Noise:
• Thermal motion of electrons in conductors• Diffusion or recombination of charged carriers
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Noise
External Noise:
• Interference from signals transmitted on nearby channels• Faulty contact switches for electrical equipment• Automobile ignition radiation• Fluorescent lights• lightning• Electrical storms• Solar and Intergalactic radiation
Internal Noise:
• Thermal motion of electrons in conductors• Diffusion or recombination of charged carriers
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Noise
External Noise:
• Interference from signals transmitted on nearby channels• Faulty contact switches for electrical equipment• Automobile ignition radiation• Fluorescent lights• lightning• Electrical storms• Solar and Intergalactic radiation
Internal Noise:
• Thermal motion of electrons in conductors• Diffusion or recombination of charged carriers
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Noise
External Noise:
• Interference from signals transmitted on nearby channels• Faulty contact switches for electrical equipment• Automobile ignition radiation• Fluorescent lights• lightning• Electrical storms• Solar and Intergalactic radiation
Internal Noise:
• Thermal motion of electrons in conductors• Diffusion or recombination of charged carriers
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Noise
External Noise:
• Interference from signals transmitted on nearby channels• Faulty contact switches for electrical equipment• Automobile ignition radiation• Fluorescent lights• lightning• Electrical storms• Solar and Intergalactic radiation
Internal Noise:
• Thermal motion of electrons in conductors• Diffusion or recombination of charged carriers
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Modulation
Baseband signals produced by various information sources are not alwayssuitable for direct transmission over a given channel. These signals are
usually further modified to facilitate transmission. This conversion process isknown as modulation.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Modulation
Baseband signals produced by various information sources are not alwayssuitable for direct transmission over a given channel. These signals are
usually further modified to facilitate transmission. This conversion process isknown as modulation.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Frequency Modulation
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Frequency Modulation
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Frequency Modulation
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Frequency Modulation
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Amplitude Modulation
Time
Amplitude
0
−1.5
1.5
−0.5
0.5
Message wave envelopeCarrier wave
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Amplitude Modulation
Time
Amplitude
0
−1.5
1.5
−0.5
0.5
Message wave envelopeCarrier wave
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Why Modulation?
• Ease of radiation
• Simultaneous transmission of several signals
• Effecting the exchange of SNR with bandwidth
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Why Modulation?
• Ease of radiation
• Simultaneous transmission of several signals
• Effecting the exchange of SNR with bandwidth
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Why Modulation?
• Ease of radiation
• Simultaneous transmission of several signals
• Effecting the exchange of SNR with bandwidth
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Why Modulation?
• Ease of radiation
• Simultaneous transmission of several signals
• Effecting the exchange of SNR with bandwidth
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Communication Channels – Guided Propagation
Telephone Channels:• A simple twisted pair of copper wires• Have a characteristic impedance of 90 − 100 Ω• Susceptible to EMI• Have less BW and can transmit data Rates up to few tens of Kbps
Coaxial Cables:• Inner conductor and outer conductor, separated by a dielectric material• Have a characteristic impedance of 50 − 75 Ω• Less Susceptible to EMI• Have Higher BW and can transmit data Rates up to 20 Mbps. Typical is
10 Mbps
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Communication Channels – Guided Propagation
Telephone Channels:• A simple twisted pair of copper wires• Have a characteristic impedance of 90 − 100 Ω• Susceptible to EMI• Have less BW and can transmit data Rates up to few tens of Kbps
Coaxial Cables:• Inner conductor and outer conductor, separated by a dielectric material• Have a characteristic impedance of 50 − 75 Ω• Less Susceptible to EMI• Have Higher BW and can transmit data Rates up to 20 Mbps. Typical is
10 Mbps
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Communication Channels – Guided Propagation
Telephone Channels:• A simple twisted pair of copper wires• Have a characteristic impedance of 90 − 100 Ω• Susceptible to EMI• Have less BW and can transmit data Rates up to few tens of Kbps
Coaxial Cables:• Inner conductor and outer conductor, separated by a dielectric material• Have a characteristic impedance of 50 − 75 Ω• Less Susceptible to EMI• Have Higher BW and can transmit data Rates up to 20 Mbps. Typical is
10 Mbps
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Communication Channels – Guided Propagation
Optical Fibers:• Dielectric waveguide that transports light• Has a inner core to confine the EM fields, surrounded by cladding and
then outer jacket• Less Susceptible to EMI• Have very high BW: order of 2 × 1013Hz
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Communication Channels – Guided Propagation
Optical Fibers:• Dielectric waveguide that transports light• Has a inner core to confine the EM fields, surrounded by cladding and
then outer jacket• Less Susceptible to EMI• Have very high BW: order of 2 × 1013Hz
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Microwaves & Waveguides
At microwave frequencies (usually >1 GHz), cable losses increase. So, we usewaveguides instead.
However, stray reactances are more important at microwave frequencies.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Communication Channels – Free-Space Propagation
Wireless Broadcast Channels:• Radio and TV broadcasts• Have Tx and Rx antennas, to couple the EM waves to the medium• Usually the Transmission frequencies are of the order of 100 MHz• Propagation is by virtue of LoS and diffraction of waves for Non LoS
locations• BW depends on the type of broadcasts- Radio or TV
Mobile Radio Channels:• Mobile Telecommunication Channels• Usually the Transmission frequencies are of the order of 800 – 1200 MHz• LoS propagation is almost impossible• Propagation through diffraction, scattering; multipath propagation is
prevalent• Susceptible to fading (time varying channels)
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Communication Channels – Free-Space Propagation
Wireless Broadcast Channels:• Radio and TV broadcasts• Have Tx and Rx antennas, to couple the EM waves to the medium• Usually the Transmission frequencies are of the order of 100 MHz• Propagation is by virtue of LoS and diffraction of waves for Non LoS
locations• BW depends on the type of broadcasts- Radio or TV
Mobile Radio Channels:• Mobile Telecommunication Channels• Usually the Transmission frequencies are of the order of 800 – 1200 MHz• LoS propagation is almost impossible• Propagation through diffraction, scattering; multipath propagation is
prevalent• Susceptible to fading (time varying channels)
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Communication Channels – Free-Space Propagation
Wireless Broadcast Channels:• Radio and TV broadcasts• Have Tx and Rx antennas, to couple the EM waves to the medium• Usually the Transmission frequencies are of the order of 100 MHz• Propagation is by virtue of LoS and diffraction of waves for Non LoS
locations• BW depends on the type of broadcasts- Radio or TV
Mobile Radio Channels:• Mobile Telecommunication Channels• Usually the Transmission frequencies are of the order of 800 – 1200 MHz• LoS propagation is almost impossible• Propagation through diffraction, scattering; multipath propagation is
prevalent• Susceptible to fading (time varying channels)
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Communication Channels – Free-Space Propagation
Satellite Channels:• Broad area coverage and use geostationary satellites• LoS propagation is the major one• Most of the propagation is in atmosphere free region• Reliable links and wide transmission BWs (Up to 500 MHz)• Uses spectrum around 6 and 8 GHz
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Communication Channels – Free-Space Propagation
Satellite Channels:• Broad area coverage and use geostationary satellites• LoS propagation is the major one• Most of the propagation is in atmosphere free region• Reliable links and wide transmission BWs (Up to 500 MHz)• Uses spectrum around 6 and 8 GHz
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Outline
1 Introduction
2 Course Plan
3 Textbooks and References
4 Evaluation Scheme
5 Notes
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Course Plan
S.
No.Topic Learning Objectives
No. of
Lectures
Ref. From the
Text
1
Overview of the course,
and introduction to
communication systems
See handout for
comprehensive list of
objectives.
1 T1 & T2 : Ch. 1
2
Deterministic and
random signals, and
their properties
See handout for
comprehensive list of
objectives.
2T1 : Ch. 2 & 3
T2 : Ch. 2
3Random variables,
processes, and noise
See handout for
comprehensive list of
objectives.
3
T1 : Ch. 8 & 9
T2 : Ch. 5
R3 : Ch. 5
4Amplitude modulation
(AM)
See handout for
comprehensive list of
objectives.
5
T1 : Ch. 4
T2 : Ch. 3 & 6
R2 : Ch. 7
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Course Plan ... Cont’d
5 Angle modulation
See handout for
comprehensive list of
objectives.
4
T1 : Ch. 5
T2 : Ch. 4,6
R2 : Ch. 7
6
Digital representation of
analog signals and pulse
modulation
See handout for
comprehensive list of
objectives.
4
T1 : Ch. 6
T2 : Ch. 7
R2 : Ch. 10
7Baseband transmission
of digital signals
See handout for
comprehensive list of
objectives.
4T1 : Ch. 7
T2 : Ch. 8
8
Baseband Reception of
Digital Signals and
Noise performance
See handout for
comprehensive list of
objectives.
4T1 : Ch. 10
R3 : Ch. 3
9Band-Pass transmission
of digital signals
See handout for
comprehensive list of
objectives.
5
T2 : Ch. 9
T1 : Ch. 10
R3 : Ch. 4
R2 : Ch. 8
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Course Plan ... Cont’d
10Information theory and
error correcting codes
See handout for
comprehensive list of
objectives.
5
T1 : Ch. 13,14
T2 : Ch. 10
R3 : Ch. 6
R2 : Ch. 9
11Digital receiver design
& performance analysis
See handout for
comprehensive list of
objectives.
3 R3 : Ch. 9
12Introduction to spread
spectrum systems
See handout for
comprehensive list of
objectives.
2T1 : Ch. 11
R3 : Ch. 12
13
Emerging trends in
communication systems:
optical and mobile
communications
See handout for
comprehensive list of
objectives.
1Supplementary
notes
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Outline
1 Introduction
2 Course Plan
3 Textbooks and References
4 Evaluation Scheme
5 Notes
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Textbooks and References
Text Book:
• B.P. Lathi and Zhi Ding, “Modern Digital and Analog CommunicationSystems,” 3rd OR 4th Edition, Oxford University Press, 2010 [T1]
• Simon Haykin and Michael Moher, “Communication Systems,” 4th OR5th Edition, John Wiley & Sons, 2010 [T2]
Reference Books:• Proakis John, “Digital Communications,” 4th Edition, TMH [R1]• K. Sam Shanmugam, “Digital and Analog communication systems,”
John Wiley & Sons [R2]• Ernard Sklar and Pabitra Kumar Ray, “Digital Communications:
Fundamentals and Applications,” Pearson Education 2009, 2/e [R3]
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Textbooks and References
Text Book:
• B.P. Lathi and Zhi Ding, “Modern Digital and Analog CommunicationSystems,” 3rd OR 4th Edition, Oxford University Press, 2010 [T1]
• Simon Haykin and Michael Moher, “Communication Systems,” 4th OR5th Edition, John Wiley & Sons, 2010 [T2]
Reference Books:• Proakis John, “Digital Communications,” 4th Edition, TMH [R1]• K. Sam Shanmugam, “Digital and Analog communication systems,”
John Wiley & Sons [R2]• Ernard Sklar and Pabitra Kumar Ray, “Digital Communications:
Fundamentals and Applications,” Pearson Education 2009, 2/e [R3]
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Outline
1 Introduction
2 Course Plan
3 Textbooks and References
4 Evaluation Scheme
5 Notes
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Evaluation Scheme
EC
No.
Components Duration Marks Date & Time Remarks
1 Test-1 60 min 50 (16.6%) 10:00 – 11:00 AM
(14/9/15)
CB
2 Test-2 60 min 50 (16.6%) 10:00 – 11:00 AM
(7/11/15)
CB
3 Final Lab
Exam
- 30 (10%) -
4 Regular Lab
Component
- 40 (13.33%) -
5 Home
Assignment
- 20 (6.67%) OB
5 Comprehensive 3 Hrs 110 (36.67%) 2:00 – 5:00 PM
(5/12/15)
CB
300 (100%)
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Evaluation Scheme
EC
No.
Components Duration Marks Date & Time Remarks
1 Test-1 60 min 50 (16.6%) 10:00 – 11:00 AM
(14/9/15)
CB
2 Test-2 60 min 50 (16.6%) 10:00 – 11:00 AM
(7/11/15)
CB
3 Final Lab
Exam
- 30 (10%) -
4 Regular Lab
Component
- 40 (13.33%) -
5 Home
Assignment
- 20 (6.67%) OB
5 Comprehensive 3 Hrs 110 (36.67%) 2:00 – 5:00 PM
(5/12/15)
CB
300 (100%)
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Outline
1 Introduction
2 Course Plan
3 Textbooks and References
4 Evaluation Scheme
5 Notes
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Notes
Chamber Consultation Hour:Will be announced in the class.
Make-up Policy:Make-up for any component will be given only in genuine cases. In all cases,prior intimation must be given to IC.
Notices:All notices related to the course will be put on the CMS.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Notes
Chamber Consultation Hour:Will be announced in the class.
Make-up Policy:Make-up for any component will be given only in genuine cases. In all cases,prior intimation must be given to IC.
Notices:All notices related to the course will be put on the CMS.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Notes
Chamber Consultation Hour:Will be announced in the class.
Make-up Policy:Make-up for any component will be given only in genuine cases. In all cases,prior intimation must be given to IC.
Notices:All notices related to the course will be put on the CMS.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Notes
Chamber Consultation Hour:Will be announced in the class.
Make-up Policy:Make-up for any component will be given only in genuine cases. In all cases,prior intimation must be given to IC.
Notices:All notices related to the course will be put on the CMS.
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
Introduction Course Plan Textbooks and References Evaluation Scheme Notes
Course Calendar
AugustSun Mon Tue Wed Thu Fri Sat
4 5 6 7 8
9 11 12 13 14 15
16 18 19 20 21 22
23 25 26 27 28 29
30
3
10
17
24
31
SeptemberSun Mon Tue Wed Thu Fri Sat
1 3 4 5
6 8 10 11 12
13 15 17 18 19
20 22 24 25 26
27
7
14
21
28 29
2
9
16
23
30
OctoberSun Mon Tue Wed Thu Fri Sat
1 3
4 5 6 7 8 10
11 12 13 14 15 17
18 19 20 21 22 24
25 26 27 28 29
2
9
16
23
30 31
NovemberSun Mon Tue Wed Thu Fri Sat
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Holiday
Test I / Test II / ATMOS
Different Time-Table
1. Introduction to Communication Systems Communication Systems, Dept. of EEE, BITS Hyderabad
