FTTH Network Tendencies - ANACOM

FTTH Network Tendencies

Jürgen SeidenbergBKtel communications GmbH

Germany

Agenda

Introduction

Services Evolution

FTTH network topologies

FTTH installations

NGN FTTH networks

Anacom Workshop FTTH 2

Introduction


4

Telecom Outsite Plant Lifetime

The Cabling Infrastructure is the mostly determining the CAPEX of a Telecom network

In order to achieve a reasonable ROI a long lifetime of the Cable plant is mandatory

Copper pair networks constructed to transmit 4 kHz of voice signals about 20 … 30 years ago today transport up to 100 Mbit/s (VDSL2) thanks to the consequent star topology (point-to-point network)

CATV networks have been installed in many cases > 20 years ago to carry around 20 TV + 30 FM channels and carry today FM, hundreds of TV channels and Internet services.

FTTH networks therefore should also be designed to last long, e.g. > 20 years

Anacom Workshop FTTH

5

Prognosis on high speed access

networks

Main capital investment flows into last mile

Wireless technologies not available for long distance / high speed

DSL based technologies and also HFC will reach a throughput limit

Expensive to refurbish last mile when the wrong choices were taken

FttH or FttP are architectures of choice:

Long term investment protection

Largest bandwidth delivered

Operational savings for large deployments

Easy to upgrade for future bandwidth demands


Quality aspects in Telecom Networks

Seen from the Network Operator / Service Provider:

Investment

Installation efforts

Maintenance efforts

Lifetime


“ROI

is

the issue”

Select

appropriate

technology

“The customer

ist the king”

Seen from the customer:

Good quality of all services

Speed and Reliability of data service (Internet)

Speech quality for voice services

Picture quality, content, service availability for TV services

Service Evolution



Prediction –

How much Access Bandwidth is required ?

today

average for all Broadband Users with different kind of Data and Voice services as well as

available VOD services. Valid independent on Access Technology.

What kind

of network

to be build

with that

view on

future

bandwidth

demands?

9

Service Evolution

Telephony Services will be transmitted in the future via VoIP

Data services will continue to request higher datarate (Youtube ...)

Video services will continue to eat up the available datarate if IPTV is used without an additional RF video overlay:

Full HDTV: 1920 x 1080 ~ 9…20 Mbit/s (MPEG4)

Several streams of video (multiple displays + DVR) require many videostreams to be supported

Special functions (e.g. DVR fast forward) require a multiple (3 ~ 5) of the standard datarate

What´s next?


10

Video Service Evolution on short term

(5 ~ 10 years)


11

Video Service Evolution on long term

(10 ~ 25 years)


Only fiber will be able to support all future services

Evolution of Wired Access networks

12

FTTH (P-P or PON)

DS-Rate: typ. 100-1000M

Multichannel BC-TV,

HDTV,

Video on Demand,

Voice, and… and…

FTTH

VDSL or

Cable Modem

(Docsis3.0)

DS-Rate: typ. 10-50M

Broadcast TV,

Multimedia home,

Video on Demand

Fiber deep

HFC or VDSL

ADSL or

Cable Modem

(Docsis1.0-2.0)

DS-Rate: typ. 1-16M

CATV: RF and digital TV

+ Fast Internet and

Voice

ADSL: Fast Internet and

Voice,

Video download

Traditional

HFC or ADSL

Dial up Modem /ISDN

DS-Rate: typ. 56-128k

Text based Web surfing

PSTN

switched

yesterday today


FTTH Network Topologies



PON: pure IP Triple Play network

IP - network

Backbone-Router

PC VoIPTV

PC VoIPTV

PC VoIPTV

PON

1550 & 1310 nm

1GbE

Optical Line

Termination (OLT)

Point to multipoint network (1:16 … 1:64)

Standards for PON: GE-PON


IEEE 802.3ah (EFM): GE-PON

1490nm / 1310 nm bidirectional optical GE-PON

1 Gbit/s for 32 subscribers

Provisioning

TR069 or other standards

Telephony

SIP 2.0 or other standards

Standards for PON: G-PON


ITU-T G.984: G-PON

1490nm / 1310 nm bidirectional optical G-PON ,2.4 Gbit/s for 32 (64) subscribers

Provisioning


Telephony


Quality factors of the pure IP PON

seen from the Network Operator

Data, telephony, radio + TV services:

Pros: Fiber network with just one fiber per PON (16 … 64 subscribers)

leaving the CO; saves space and equipment in the CO

Cons: Outdoor-location for passive optical splitter reduced granularity

Shared medium requires encryption and protection measures


Radio + TV services:

Pros: Triply-play via pure IP-Network

Cons: IPTV headend or feeder required

IP backbone needs to be able to provide sufficient data rate capacity

Quality factors of the pure IP PON

seen from subscriber

Data and telephony services:

Pros: Good speech quality

High speed data service available

Cons: Individual requests on the different performance of the service hardly be fulfilled

since PON is a shared medium



Pros: pure IP inhouse network, no coaxial cable network required

Cons: reduced comfort compared to direct satellite or CATV service

IPTV set-top box required for each subscriber radio/TV/VCR

limited zapping performance

IP-Radio instead of SAT-Radio or FM-Radio

TV service with a significant delay (e.g. 5 … 10 Seconds)


PON + RF Video Overlay

CATV

IP - network

Backbone-Router

PC VoIPTV

PC VoIPTV

PC VoIPTV

CATV & PON

1550 & 1310/1490nm

1GbE

PON Optical Line

Termination (OLT)

Point to multipoint network

RF Video Overlay OLT

Standards for PON: GE-PON

+ RF Video Overlay


IEEE 802.3ah (EFM): GE-PON

1490nm / 1310 nm bidirectional optical GE-PON

1 Gbit/s for 32 subscribers

IEC 60728-13-1 for the RF video overlay (optional)

FTTH RF Video Overlay (in preparation)

Provisioning


Telephony


Standards for PON: G-PON + RF Video Overlay


ITU-T G.984: G-PON

1490nm / 1310 nm bidirectional optical G-PON ,2.4 Gbit/s for 32 (64) subscribers

IEC 60728-13-1 for the RF video overlay (optional)


Provisioning


Telephony


Quality factors of the IP PON + RF video

overlay seen from the Network Operator



Pros: low cost RF Video Overlay System instead of state of the art IPTV System

Data, telephony, Radio + TV Services:

Pros: Fiber network with just one fiber per PON (16 … 64 subscribers)

leaving the CO; saves space and equipment in the CO

Cons: Outdoor-location for passive optical splitter

reduced granularity (16 , 32, 64)

Shared medium requires encryption and protection measures

Data and Telephony Services:



Cons: Individual requests on the different performance of the service hardly

be fulfilled since PON is a shared medium


Radio + TV Services:

Pros: no IP set-top box for analog TV required

FM Radio

Huge number of channels for several TVs, DVRs, …

immediate response to zapping request

undelayed reception of the content

Cons: inhouse IP-network + coax-network required

Quality factors of the IP PON + RF Video

overlay seen from the subscriber

Point to Point Network with

RF Video Overlay (single fiber)


1GbE

Access Switch

IP - Network

RF Video Overlay OLT

Backbone Router

WDM

WDM

WDM

PC VoIPTV

PC VoIPTV

PC VoIPTV

100Mbps Optical

Ethernet

1490nm / 1310nm

RF Video

1550nm

WDM

WDM

WDM

CATV

Optical Line

Termination (OLT)

Point to Point Network


Point –to –Point Network

+ RF-Overlay (dual fiber)

CATV

Optical

Splitter

100Mbps Ethernet

1310 / 1550nm

CATV

1550nm

PC VoIPTV

PC VoIPTV

PC VoIPTV

IP

Access Router

1GbE

Ethernet

Switch

Optical

Tansmitter

1550nm +EDFA

Standards for Ethernet PtP


IEEE 802.3ah (EFM): Ethernet PTP (FE und GE)

100Base-BX10: 1550nm (1480nm-1580nm)/1310 nm bidirectional optical Fast Ethernet

1000Base-BX10: 1490nm (1480nm-1500nm) /1310nm bidirectional optical Gigabit Ethernet

IEC 60728-13-1


Provisioning

DOCSIS-based (standard used for Cable modem)

TR069 based (standard used for DSL modem)

Telephony

SIP 2.0

Quality factors of the Point to Point + RF video

overlay seen from the Network Operator


Pros: Each subscriber receives his own fiber

Very different data rates ( 100 Mb/s … 10 Gb/s) feasible

Large optical budget compared to PON

Good protection against vandalism and signal tapping

No outdoor location required

Cons: Increased amount of fibers in OLT ( n fibers for subsribers)

and consequently more equipment



Pros: low cost RF Video Overlay System instead of state of the art IPTV System

No nonlinear optical crosstalk between IP => RF video as occurring in PON

Better TV picture quality for analog TV compared to PON + RF Video Overlay

System






Pros: no IP set-top box for analog TV required

FM Radio

Huge number of channels for several TVs, DVRs, …

immediate response to zapping request

undelayed reception of the content

Cons: inhouse IP-network + coax-network required

Quality factors of the Point to Point + RF

video overlay seen from the subscriber

FTTH Installations



Network Upgrade in Basel/CH

Upgrade for residential area to future safe FTTH network

The challenge:

Upgrade from old cable infrastructure to a future proof network (limited installation space )

CATV + DVB-C and additional several hundred SAT-IF channels with DVB-S

Analogue TV set shall still work without any STB

How to safe the invest of the network and to be able to expand to very high data services like 100bT or GB-Ethernet ?


Network Upgrade in Basel/CH

Upgrade for residential area to future safe FTTH network

The Solution:

Build an FTTH network with 2/4 single mode fibers P-P to each home using same duct as before coaxial branch installation

One fiber is served with the a high performance optical 1550nm TX for CATV + SAT-IF (5 .. 2.400 MHz) boosted with an EDFA

The 2nd fiber will be used for Ethernet based data traffic.

Headend Schematics for SAT-IF signals


11,7 High Band H

12,75

High Band V

12,75

Horizontal

Vertical

10,6Ghz Oscil.

Horizontal H

2,07GHz1,1GHz

Horizontal / Vertical:

Will be selected by the SEV

V (13 V)High (22 kHz)

H (18 V)High (22 kHz)

SAT-ZF

11,7

11,837 12,266

12,480

1,88GHz1,66GHz

Transportation of the vertical and

horizontal high band transponder

signals on one fiber / coax cable Vert. H

Horiz. H

Out

12,670

10,6Ghz Oscil.

Vertical H

TWIN LNB

Astro SEV

Mixer Mixer

OUTPUT

Photo of SAT-IF headend



The Realisation : 600 Digital TV

+ 40 Analogue TV

Satellite Dishes

Satellite Head-End

87-860Mhz

+ 950-2150Mhz

Optical Transmission

and fiber distributon

Splicing in the

Basement (using existing ducts of coaxial cable)

The Optical

Receiver

The Service

CPE in living room


Example of CPE


Managed Switch based

FTTH-CPE

• 100Base-BX WAN Interface

• Integrated 10/100Mbit/s

Ethernet Switch

• Virtual LAN (VLAN)

• Quality of Service / Class of

Service

• IGMP Snooping

• Bandwidth Control

• SNMP Agent (optional)

• Ultra Low Noise Cable TV

Receiver

• Diagnostics (optional)

FTTH RF-Video Overlay Project

Telekom Slovenije


Country wide FTTH Project:

RF-Video Overlay

Ethernet IP, P-P

Services: RF-CATV: FM + 80x analogue TV channels

Up to 100bit/s Ethernet access per customer (bidirectional)

VoIP over SIP or MGCP

IP-TV

Total Number of Hubs: 74

Number of connected subscribers for phase 1: 50.000 users

2 fiber to each CPE at customer premises 1st fiber: RF on 1550nm (CATV part from BKtel)

2nd fiber: 1310/1490nm bi-directional Ethernet (IP part from Iskratel)

Central Head End in Ljubljana - longest link about 280km

Network layout FTTH project

Telekom Slowenije


RF video overlay network

Telekom Slowenije: max. 266 km


RF video overlay performance after 226 km

Telekom Slowenije


Headend measurements (before optics)

5th April 2007

45464748495051525354555657585960

11

9,2

5

14

0,2

5

16

1,2

5

19

6,2

5

21

7,2

5

23

8,2

5

25

9,2

5

28

0,2

5

30

3,2

5

32

7,2

5

35

1,2

5

37

5,2

5

39

9,2

5

43

1,2

5

48

7,2

5

51

1,2

5

53

5,2

5

55

9,2

5

58

3,2

5

63

1,2

5

65

5,2

5

67

9,2

5

71

1,2

5

73

5,2

5

75

9,2

5

78

3,2

5

SNR

Head End

SNR

Performance in

Murska Sobota( after a distance

of 226km from

Head End)

SNR MurskaSobota @ BOR RF output

(after 226km)

45,0

46,0

47,0

48,0

49,0

50,0

51,0

52,0

53,0

54,0

55,0

11

9,2

5

13

3,2

5

15

4,2

5

18

9,2

5

21

0,2

5

23

1,2

5

25

2,2

5

27

3,2

5

29

4,2

5

31

9,2

5

34

3,2

5

36

7,2

5

38

3,2

5

41

5,2

5

47

1,2

5

49

5,2

5

51

9,2

5

54

3,2

5

56

7,2

5

59

1,2

5

63

9,2

5

66

3,2

5

69

5,2

5

71

9,2

5

74

3,2

5

76

7,2

5

79

1,2

5

Reihe1

Head End

Slovenje

Head End Ljubljana (Centre) for

countrywide distribution of CATV

signals

4 x exMod TX and Distribution

16 x 20EDFAs

Booster YEDFA for 4000 local

connected customers

Central Office for PtP Distribution

Slowenje

• ca. 2000 fibers/ ETSI Rack

Central Office for PtP Distribution (2)

Slowenije

CATV DistributionHub Murska SobotaHub Bezigrad

16 x 20dBm Booster EDFA connects to 1536

Customers

1x64 Splitters

City Telekom (HK) Ltd./

Hongkong Broadband Newtwork Ltd.


Presented on FTTH Council USA, Nashville , Sept 2008 by CTI / HKBN

Company Overview


Hongkong Broadband Network Ltd.



Offered Data Services


Hongkong Broadband Newtwork Ltd.



Network Topology





Fiber optic backbone network





Inhouse Wiring for Small Buildings





Inhouse Wiring for Large Buildings

State of the art Fiber Installation in

Buildings


Presented on FTTH Council USA, Nashville , Sept 2008 by OFS

Low Bending Loss Fiber Standards for

Installations in Buildings


Presented on FTTH Council USA, Nashville , Sept 2008 by OFS

Inhouse Wiring for Large Buildings

NGN FTTH Networks


PON:

10 Gbit/s GPON (shared between 32 … 64 … subscribers)

10 Gbit/s GEPON (shared between 32 … 64 … subscribers)

WDM PON (logical point to point links, each subscribers has different wavelength)


Point to point networks:

1 Gbit/s to each subscriber (already available)

10 Gbit/s to dedicated subscribers (already available)

NGN FTTH networks

FTTH network future strategy


The most future proof solution:

FTTH network with 2/4 single mode fibers in point-to-point topology

IP + RF Video Overlay technology for unmatched service performance


Thank you for your attention!

Further Infos under www.bktel.com

or send email to [email protected]

http://www.bktel.com/

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