Data over Coax The Best Last Mile Access Technology before FttH

ANGA COM 2013

4-6.6.2013 Hanno Narjus

Senior Vice President, Video and Broadband Solutions

ON EVERY STREET CORNER IN EUROPE

Or in Other Words:

Should your Next Generation CMTS be Installed Here?

ON EVERY STREET CORNER IN EUROPE

Evolution to All-IP On-demand TV drives Moore’s law in access network

Challenges in coping with traffic growth over next 3-5 years: • Traffic doubles every 18 months • All VoD subscribers will become broadband subs =>

stepwise increase in broadband capacity • Network dimensioning to be done for the unicast TV

busy hour • Sustained speeds up to 30 Mbps / HH • # of QAM ports will grow 4-6 fold • How to monetize the associated CAPEX? • Physical size: there is no room in central office sites • Power consumption to match the competition

HFC access network solutions Centralized CMTS + segmentation

Main Headend

ACX ACX BK

ACX BK

Coax Network

Coax

House Network

IP Backbone

Streaming Video / VOD

Network management

Deep Fibre / FTTB

FTTH

Classical HFC

VoIP Gateway

Internet services Local video Services

Telephony services

CXE

OE

CXE RT1000

OE

CMTS EQAM

Headend

1550 nm / EDFA / RF over Glass

Coax

House Network

Optical

House Network

1310 nm O-band / CWDM / digital

return

CMTS EQAM

Headend

CMTS EQAM

Headend

1310 nm CWDM / 1550 nm / EDFA / DWDM

Main Headend

IP Backbone

Streaming video / VOD

Network management

Deep Fibre / FTTB

FTTH

VoIP Gateway

Internet services Local video Services

Telephony services

IP Edge EQAM

PoP

Coax

House Network

Optical

House Network

P2p GigE / xPON

RF overlay

IP Edge EQAM

HFC access network solutions Distributed CMTS architecture

P2p GigE / xPON

RF overlay

Data Access Hub DOCSIS/EPoC/MoCA/G.hn

EQAM Coax

House Network

PoP

CMTS Docsis 3.0 DVB VoD 1000 HP / segment

CCAP Docsis 3.0 DVB VoD

250-500 HP / segment

CCAP Docsis 3.1 All-IP VoD

100-250 HP / segment Spectrum upgrade (CPE,

Amps, passives)

Distributed architecture More capacity (3.0 32 DS / 8 US

or EPOC / GPOC) All-IP

50-100 HP / segment

Distributed architecture Docsis 3.0 DVB VoD

100-200 HP / segment

FTTH

Distributed architecture

Docsis 3.1 / EPOC / GPOC All-IP

100 HP / segment

CMTS Docsis 3.0 DVB VoD 1000 HP / segment

CCAP Docsis 3.0 DVB VoD

250-500 HP / segment

Distributed architecture More capacity (3.0 32 DS / 8 US

or EPOC / GPOC) All-IP

50-100 HP / segment

Distributed architecture Docsis 3.0 DVB VoD

100-200 HP / segment

An example scenario 1. CCAP to be launched for lower CAPEX + red-cell

fighting node segmentation 2. Distributed architecture for ”hot spots” in the network

• Uniform Docsis 3.0 platform (postpone 3.1 launch) • Avoidance of spectrum upgrade major CAPEX • Further segmentation • Future proof optical transmission in acces

3. Launch more capacity • Either stay at Docsis 3.0 + segmentation or • Future technology e.g. EPOC

FTTH

Distributed CMTS architecture pros / cons

Benefits • Plenty of capacity / subscriber • Future proof metro Ethernet optical

access • Simplified and lower CAPEX optical

access network • Simplified DoC Access Hub

(compared to centralized CMTS / CCAP) => competitive CAPEX / QAM port

Drawbacks

• Less dynamic capacity allocation across subscribers => capacity reserve upfront investment for 3+ years

• More complexity distributed in the network => Network Management tools are a must to reach low OPEX

• Technology upgrade requires truck-roll (e.g. Docsis 3.1)

Star and Cascade

MoCA 2 . 0

DOCSIS CATV

FM

2013

MoCA

400 / 800 Mbps Shared

Star and Cascade

G . hn

( DOCSIS ) CATV ( FM )

2012

ITU - T

600 Mbps Shared

Network topologies

Technology

Service co - existance

Availability

Standardisation organisation

Coax Throughput

Amplifiers on signal path

Star and Cascade

IEEE P 1901

CATV FM

Yes

IEEE

500 Mbps Shared

Good Good Ingress Robustness Good

Star and Cascade

DOCSIS EoC

DOCSIS CATV

FM

2012

Cablelabs

160 Mbps US / 960 Mbps DS

Shared

Active return path amps , no bypass needed

Fair

Star only

Baseband Ethernet

CATV

2011

-

100 Mbps dedicated

Cannot exist

Excellent

Star and Cascade

EPON over Coax

DOCSIS CATV

FM

Unknown

IEEE 802 . 3 Ethernet

Working Group

Same as DOCSIS

Active return path amps , no bypass needed

Poor

Star and Cascade

HPNA 3 . 1

CATV FM

Yes

ITU - T discontinued

200 Mbps Shared

Average

Bypass needed Bypass needed Bypass needed Bypass needed

(DOCSIS) CATV (FM)

Data over Coax technologies Brief comparison

Data over Coax technologies Conclusions

• Docsis DoC is the natural choice today in developed cable markets • Mature standard, developed for access networks • Wide availability and installed base of low-cost subscriber modems • Works in existing two-way coax networks, up to 1 GHz • Enables a smooth evolution from central-office CMTS to distributed DoC Access Hub

architecture

• MoCA and G.hn: for telecom operators targeting to operate > 1GHz • Very robust modulation schemes – can work in poor quality coax plant • Option to use frequencies above 1 GHz – with obvious unknowns • Main focus on home-networking => standards do not cover needed functions (Ethernet

networking, security, provisioning, mgmt, ...) for access networks • Do not work in coax networks with amplifiers

• EPoC is an option for the future (2014-2015?)

Data over Coax Characteristics of attractive deployment scenarios

1. In conjunction with deep fibre upgrade (segment size c. 100 subs)

2. When sustained high-speed connectivity is needed • High volume of unicast IP TV traffic • Business subscribers • Hospitality markets

3. Deployment of distributed CMTS in ”hot spots”

• Gradual evolution to distributed CMTS architecture

4. Small network Docsis solution • CAPEX scales down to small number of potential subscribers • E.g. in Central / Eastern Europe

5. Telco’s targeting housing associations

• Competitive alternative to VDSL

Data over Coax Summary

• On-demand TV services will generate exponential growth in traffic

• Data over Coax is a promising next generation architecture • High capacity for the typical FttLA / FttB segment sizes • Future proof investment in Ethernet optics • When sustained high-speed connectivity is demanded

• Interesting migration scenarios can be identified for deployments starting today • Cable ops: evolution starting from hot-spot segments • Telco’s: housing associations market • Hospitality, B2B customers, backhaul for WiFi hotspots

• Further studies needed on e.g.: • E2e CAPEX comparisons • Provisioning and maintenance business processes

Thank You!

Q & A

ON EVERY STREET CORNER IN EUROPE