ADVANCED COMMUNICATION SOLUTIONS

Satellite Satellite ConnectivityConnectivity

Connecting the Caribbean Connecting the Caribbean

Emergency Communications & Emergency Communications & Disaster PreparednessDisaster Preparedness

Michael GoldMichael Gold

Vice PresidentVice President

Comtech EF DataComtech EF Data

ADVANCED COMMUNICATION SOLUTIONS

Connecting the Connecting the CaribbeanCaribbean

Global Mobile Trends

• Mobile is enabling connectivity for many people for the first time in their lives

• GSM– 3+ Billion GSM subscribers exist worldwide

– 700 mobile operators across 218 countries and territories of the world are adding new connections at the rate of 15 per second, or 1.3 million per day

– Emerging markets represent 85% of new connections today

– Over 90% of the Earth's population will be covered by mobile networks

• To keep capital and operating costs down, new and innovative ways must be proposed to meet connectivity goals

• The fast pace of cellular network roll-out and take-up around the world is creating mounting coverage challenges for mobile operators

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Sources:

Satellite-Based Cellular Backhauling

• To enter markets beyond large city limits and to blanket large regions with cellular services quickly, satellite backhaul can efficiently extend reach

• To tap into new customer markets with tight and regulated timeframes, mobile incumbents and new operators can build networks with satellite infrastructure

• Satellite can beat many fiber, cable or wireline deployment schedules by weeks or months

• Technology advances (compression techniques, IP-over-satellite delivery and optimized network topologies) are catalysts to fuel the market for cellular backhaul via satellite

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Source:

Satellite-Based Cellular Backhauling

• Market is driven by rapid expansion of cellular networks in developing economies of Africa, Middle East, Latin America and Asia

• Mobile operators are using satellite space segment to backhaul traffic between remote cell sites and the network’s Mobile Switching Center

• Satellite is most popular in greenfield operations – it’s the quickest and most cost effective solution for RAN deployment

• Total number of cellular sites backhauled by satellite is predicted to grow to 35,000+ sites globally by end of 2010 (CAGR = 28%)

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Source:

Connect the Caribbean

• Demand for satellite capacity is straining the bandwidth supply

• In Latin America, operators will launch new satellites during the next 2-5 years to meet the new demand over the next 10-15 years

• However, the growth of government and commercial applications over satellite requires immediate solutions for satellite transponder capacity

• The capacity challenge can be countered with advanced satellite technologies

– Advanced forward error correction– Higher order modulation– Bandwidth compression

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ADVANCED COMMUNICATION SOLUTIONS

Emergency Emergency Communications & Communications &

Disaster Disaster PreparednessPreparedness

Natural & Man-Made DisastersAn Unfortunate Reality

• Recent examples around the globe have proven that communications systems can be severely affected when disaster strikes

– The financial impact of network outages can be considerable

– Even the most reliable terrestrial networks are susceptible to outages because they lack true path diversity and have common points of failure

• Establishing first response connectivity of voice, data and video is a necessity

• And, maintaining continuity of business communications is critical for sustained operations

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Satellite Communication Systems An Essential Component to Disaster Recovery

• Enables communications restoral more rapidly than terrestrial systems

• Allows enterprises and government agencies to respond quickly if satellite communications systems (fixed or mobile) are the backbone of emergency communications networks

• Facilitates instantaneous communications between hospitals, headquarters, supply centers and remote locations

• Minimizes downtime of back office operations

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Disaster Recovery &First Responder Needs

• Rapid Deployment– Satellite based systems are perfect for instantaneous deployment to the

disaster site– Systems can be organized in vehicles or in transportable, self-contained cases

• Interoperability & Standards– IP based platforms provide a seamless way to integrate Internet, e-mail, voice,

video, file transfer applications between agencies

• Ruggedness– Communications via satellite can be provided in extremely harsh environments

• Reliability– Satellite technology provides a highly reliable mechanism for one-way or two-

way communications

• Security– Satellite links must provide secure communications

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Business Continuity Needs

• Redundant communication links between corporate offices locally, regionally, nationally and globally

• Critical connections to off-site back-up servers, computers, and databases

• Businesses to “get back on their feet” quickly after a loss of terrestrial/wired communication

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Satellite Services Meet the Need

• Satellites meet the key requirements of an effective recovery plan

– Physical path diversity from the exiting network– Fast service availability – within 24 hours– Scalable bandwidth that can adjust to changing capacity needs– Flexible service support– Bandwidth/capacity available for extended time frames– Connectivity to primary and backup data centers– Last-mile bypass of disaster-affected area– Ability to relocate easily– Rapid deployment

• The network can be leveraged to support applications other than backup

• Deployment of advanced satellite technologies make it more cost-effective

– Advanced forward error correction– Higher order modulation– Bandwidth compression

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ADVANCED COMMUNICATION SOLUTIONS

• Forward Error CorrectionForward Error Correction

• Higher Order ModulationHigher Order Modulation

• Bandwidth CompressionBandwidth Compression

Advanced Satellite Advanced Satellite TechnologiesTechnologies

Forward Error Correction & ModulationSpectral Efficiency vs. Eb/No

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Turbo Product Coding

• Turbo Product Coding– Lower Eb/No requires less power – Higher efficiency uses less bandwidth– Block size most important for coding gain

4.0

1.50

3/4

5.2

1.35

Viterbi+ Reed

Solomon

TurboProduct Coding

Eb/No (dB)

Bandwidth Efficiency (bps/ Hz)4.2

1.75

7/8

6.5

1.58

Viterbi+ Reed

Solomon

Turbo Product Coding

Turbo Less BW

Turbo: Less Power

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Low Density Parity Check

• Basis of DVB-S2 standard• Third-class of Turbo Code

– Turbo Product Coding (TPC)– Turbo Convolutional Coding (TCC)

• Iteratively decoded block code• Performs 0.7 dB – 1.2 dB better than TPC at

low FEC rates (3/4 and below)• While coding gain is greater, processing

delay can be an issue

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Benefits of AdvancedForward Error Correction

• Advances in FEC can offer ≥3-5 dB of performance over currently used methods

• 3 dB of Coding Gain can:– Reduce required bandwidth by 50% or– Increase data throughput by a factor of 2 or– Reduce antenna size by 30% or– Reduce transmitter power by a factor of 2

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Bandwidth Compression

• DoubleTalk® Carrier-in-Carrier® bandwidth compression allows sharing of same satellite bandwidth by both terminals

Mod_1 Demod_1 Demod_2 Mod_2

S1 S2

S1*'+ S2

*'

S1* S2

*S1 S2

S2 S1

S1*'+ S2

*'

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Satellite Connectivity

• Connecting the Caribbean– Satellite-based cellular backhaul efficiently extends reach

• Emergency Communications & Disaster Preparedness– Satellite-based systems enable rapid communications

restoral

• Deployment of advanced technologies make satellite more cost-effective

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Comtech EF Data

• Specializes in solutions that optimize satellite communications

• Is recognized as a technology leader and innovator

• Has infrastructure products installed in more than 160 countries

• Provides “around the clock” customer support & authorized service centers

• Is prepared to help you:– Optimize satellite communications

– Minimize operating expenses

– Maximize transponder utilization

– Lower the total cost of ownership

2114 West 7th Street, Tempe, AZ 85281 USA Tel +1.480.333.2200 • sales@comtechefdata.com • www.comtechefdata.com20