trends and issues of ftth and g-pon koichi asatani,...

2015/2/19

1

Trends and Issues of FTTH and G-PON

Koichi Asatani, PhD Chair Professor, Nankai University

IEEE Distinguished Lecturer

IEEE Com Soc NA Region Distinguished Lecturer Tour

Concordia University, Montreal, Canada 2/18/2015

• What is going on?

• Where are we going to?

• What will be the Next?

Koichi Asatani 201５

2015/2/19

2

What is happening.


Global Internet Penetration

Source: ITU World Telecommunication/ICT Indicators Note: * Estimate


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Global Wired Broadband Penetration



Global Mobile Broadband Penetration



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Global IP Traffic 2013-2018

Source: CISCO VNI 2014

2013 2018 2017 2015 2016 2014

PB/Month

CAGR

20%

15%

61%

140

120

80

60

40

20

0

100 Mobile data

Managed IP

Fixed Internet


Wired and Wireless Global IP Traffic 2013-2018

Source: CISCO VNI 2014

2013 2018 2017 2015 2016 2014

PB/Month

CAGR

62%

20%

80

60

40

20

0

100

Mobile

Fixed


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Introduction to Access Networks


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always on access

淺谷情報通信ネットワーク 2012

Network Evolution toward NGN

Analog Telephone

Network

Digital Telephone

Network ISDN

B-ISDN （ATM)

NGN

dial up access

broadband Internet

broadband access

（ADSL, FTTH Cable）

Triple play

streaming service

integration

QoS control security

Digital Core Network

All IP Circuit-mode

& packet mode integration

-Digital terminals, & media

-Digital Access


On-premises

NW

LAN

On-premises

NW

Basic Network Configuration -Simple Model-

Core NW

LAN

PBX

Access

NW

Home

NW

Local NW Wide Area NW Private NW

Data Center

Local NW

Public NW

Private NW

AP

WAP

PBX

Access

NW

Access

NW

Access

NW

Access

NW

Access

NW

Other

Core NW


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Access Evolution Scenario Toward B-ISDN

B-ISDN/ATM

>64kbit/s Switched Circuit Cap

Packet Cap

Permanent Connection Cap

Signaling Cap

Data

Telephone

FAX

Video Telephone

TV

TV Conference

Packet NW

64kbit/s

Switched Circuit NW

Leased Lines

Data

Telephone

TV Conference

Service dedicated NW(~1980s)

NGN(2000s~)

ISDN(1980s~ ) 64kbit/s

Switched Circuit Cap

ISDN

Data(Internet)

Telephone

FAX

TV Conference

Mobile Devices AP/BS AP/BS Mobile Network


Access Evolution Scenario -Real Story-

NGN/

IP Network

>64kbit/s Switched Circuit Cap

Packet Cap

Permanent Connection Cap

Signaling Cap

Data

Telephone

FAX

Video Telephone

TV

TV Conference

Packet NW

64kbit/s

Switched Circuit NW

Leased Lines

Data

Telephone

TV Conference

Service dedicated NW(~1980s)

NGN(2000s~)

ISDN(1980s~ ) 64kbit/s

Switched Circuit Cap

ISDN

Data(Internet)

Telephone

FAX

TV Conference

AP/BS AP/BS

Mobile Devices


http://internet.watch.impress.co.jp/img/iw/docs/372/808/html/000.jpg.html




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Broadband Access Technologies

FTTx Access Network access by using Fiber to the Home,

Building, Curb, and Cabinet (FTTH, FTTB,

FTTC, FTTCab)

DSL Access Network access by using twisted pair cables for

telephone(ADSL)

CATV Access Network access by using cables for CATV

including HFC(Hybrid Fiber-Coaxial)

Fixed Wireless Access

(FWA)

Wireless network access for fixed user devices

Broadband Wireless

Access (BWA)

Broadband network access by using WiMAX at

2.5GHz band

4G Access Network access by using 4G Cellular phone

(LTE)


ADSL

(ADSL: Asymmetric Digital Subscriber Line)

Metallic Cable

Access Node

Access Configurations -ADSL & Cables

Cables cable modem

Access Node


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Premise

Network

FTTx in Telecom

•FTTP: Fiber-To-The-Premises

•FTTH: Fiber-To-The-Home

•FTTB: Fiber-To-The-Building (Basement)

•FTTC: Fiber-To-The-Curb

•FTTD: Fiber-To-The-Desktop

FTTC

FTTB

FTTH FTTP

Desk Top

FTTD

Service Node Curb Building

Home


FTTC(FTTCab)/VDSL

ONU

Optical fiber

Metallic

Access Node

FTTC: Fiber To The Curb

VDSL: Very High-speed

Digital Subscriber Line)

Access Configurations – FTTC(FTTCab)

Curb/Cabinet


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Access Configurations - FTTH & PON

FTTH（SS, PtP)

ONU

Optical fiber Access Node

Optical fiber ONU

Optical splitter ONU

Access Node

ONU

SS: Single Star

PtP: Point to Point

FTTH(PDS, PON) PDS: Passive Double Star

PON : Passive Optical Network

ONU

ONU


Why Fiber (FTTH/PON)?


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Because FTTH/PON features

• High-speed and Stable Throughput: Better than ADSL and Cables

• Technical Maturity: Optical access deployments happening worldwide, with regional customized flavors built on generic transmission

• Cost Effective: Most cost effective solution found to be PON – Sharing opto-electronic devices in the central office

– Sharing part of the fiber infrastructure through passive splitters

– Energy efficient

• Better Opex


Transmission loss vs. subscriber line length

Source：http://www.bspeedtest.jp/stat1_1.html

0 5 4 3 2 1

10

60

50

40

30

20

0

tran

smis

sion l

oss

(dB

)

Subscriber Line Length (km)


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ADSL Throughput vs subscriber line length

24Mbps

8Mbps

1.5Mbps

1Mbps

10Mbps

0.1Mbps

Line length(km)

0 5 4 3 2 1 6

Thro

ugh

pu

t

Source：http://www.bspeedtest.jp/stat1_1.html Koichi Asatani 201５

ADSL Throughput Variation vs subscriber line length

Source：http://www.bspeedtest.jp/stat1_1.html

24Mbps

1.5Mbps

1Mbps

10Mbps

0.1Mbps

Line length(km)

0 5 4 3 2 1 6

Thro

ugh

pu

t

10% value

90% value

50% value


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FTTH/PON Advantages

• Very high speed data up to 10Gbps to home and businesses

• Maintenance cost reduction due to no electronics between CO and customers

• Low cost due to fiber and CO interface shared by multiple customers (32-256)

• Constant data rate regardless of reach/EMC immunity

• Multiple applications supports including data (IP), video and voice (triple play)


Benefits of WDM PON

• Capacity increases of existing networks (sparse WDM) – introducing new 10G systems into existing networks on new

wavelengths, coexisting with legacy systems on the same ODN

– 4 x G-PON on parallel wavelengths having 4 times reduced split factor

• Optimized utilization of fiber infrastructure (massive WDM) – parallel operation of many TDM-PONs

– add services

– high speed connections in overlay for select customers (business, FTTB)

– point-to-point links for many users

– flexible reconfiguration of optical links

– suitable wavelength ranges: 1260 – 1360 nm, 1460 -1625 nm


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Optical Fiber Loss Attenuations

G.989.1(13)_F8-1Wavelength/nm

1250 1300 1350 1400 1450 1500 1550 1600 1650

–15

–10

–5

0

5

10

15

20

251

0.8

0.6

0.4

0.2

0

Att

enu

atio

n (d

B/k

m)

Ch

rom

atic

dis

per

sion

(ps

/nm

/km

)

S-band C L-band UE-bandO-band

old fibre (pre 1990) new fibre (~ 2000) new fibre (post 2003)


Why GPON

• Standardized by telecom operators and telecom vendors in ITU-T

• Various operation and management capability inherited from conventional proved telecom technologies

• Future-proof bandwidth

– 2.4 G / 64 users = 35 M per user

– 35 M = 6 M (HDTV-MPEG4) x 4 ch + 10 M (Internet)

• Suitable for business users because of various

• QoS and bandwidth management


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Requirements to GPON

• Key requirements

• 1 Gb/s capacity minimum

• Full service (including legacy) support

• Oriented towards IP services

• Cost effective and FCAPS manageable

• Key “non-requirements”

• Compatibility with B-PON not required

FCAPS:Fault Management, Configuration Management, Accounting

Management, Performance Management , Security Management Koichi Asatani 201５

Key Elements for Innovation

• meet new requirements

• CAPEX, OPEX

• technical maturity

• forward compatibility

• backward compatibility

• ecology


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G.980 series Recs

• G.981: PDH optical line systems for the local network • G.982: Optical access networks to support services up to the ISDN primary rate or equivalent bit rates • G.983.1: Broadband optical access systems based on Passive Optical Networks (PON) • G.983.2: ONT management and control interface specification for B-PON • G.983.3: A broadband optical access system with increased service capability by wavelength allocation • G.983.4: A broadband optical access system with increased service capability using dynamic bandwidth

assignment • G.983.5: A broadband optical access system with enhanced survivability • G.984.1: Gigabit-capable passive optical networks (GPON): General characteristics • G.984.2: Gigabit-capable Passive Optical Networks (G-PON): Physical Media Dependent (PMD) layer specification • G.984.3: Gigabit-capable Passive Optical Networks (G-PON): Transmission convergence layer specification • G.984.4: Gigabit-capable passive optical networks (G-PON): ONT management and control interface specification • G.984.5: Gigabit-capable Passive Optical Networks (G-PON): Enhancement band • G.984.6: Gigabit-capable passive optical networks (GPON): Reach extension • G.984.7: Gigabit-capable passive optical networks (GPON): Long reach • G.985: 100 Mbit/s point-to-point Ethernet based optical access system • G.986: 1 Gbit/s point-to-point Ethernet-based optical access system • G.987: 10-Gigabit-capable passive optical network (XG-PON) systems: Definitions, abbreviations and acronyms • G.987.1: 10-Gigabit-capable passive optical networks (XG-PON): General requirements • G.987.2: 10-Gigabit-capable passive optical networks (XG-PON): Physical media dependent (PMD) layer

specification • G.987.3: 10-Gigabit-capable passive optical networks (XG-PON): Transmission convergence (TC) layer specification • G.987.4: 10-Gigabit-capable passive optical networks (XG-PON): Reach extension • G.988: Optical network unit management and control interface specification • G.989.1: 40-Gigabit-capable passive optical networks (NG-PON2): General requirements


PON Market


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0

5,000,000

10,000,000

15,000,000

20,000,000

25,000,000

30,000,000

35,000,000

40,000,000

45,000,00020

04/

6

200

4/9

200

4/12

200

5/3

200

5/6

200

5/9

200

5/12

200

6/3

200

6/6

200

6/9

200

6/12

200

7/3

200

7/6

200

7/9

200

7/12

200

8/3

200

8/6

200

8/9

200

8/12

200

9/3

200

9/6

200

9/9

200

9/12

201

0/3

201

0/6

201

0/9

201

0/12

201

1/3

201

1/6

201

1/9

201

1/12

201

2/3

201

2/6

201

2/9

201

2/12

201

3/3

201

3/6

201

3/9

Broadband Access in Japan

Source: Ministry of Internal Affairs and Communications, Japan

Total

FTTH

DSL

CATV

42.0M (Total)

24.6M (FTTH)

6.0M (CATV)

4.9M (DSL)


0% 1000% 2000% 3000% 4000% 5000% 6000% 7000%

Belgium

Chile

Greece

New Zealand

Ireland

Germany

Austria

Australia

France

Canada

Luxembourg

Finland

Spain

Italy

United Kingdom

Poland

Switzerland

Netherlands

Turkey

United States

Portugal

Hungary

Czech Republic

Denmark

Slovenia

Iceland

Norway

Estonia

Slovak Republic

Sweden

Korea

Japan

FTTH/FTTB Penetration Ranking

http://dx.doi.org/10.1787/888932798506

As of June 2012


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Fixed, Mobile and Broadband Access in OECD

0

500

1 000

1 500

2 000

2 500

1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011

Fibre

DSL

Cable

Mobile

ISDN

Analogue

Subscriptions (millions)

Fiber Fiber Fiber Fiber Fiber

Analog

ISDN

Fiber DSL

Mobile

Cable

http://dx.doi.org/10.1787/888932798829


Market Growth of PON Billions USD

Source: Dell’Oro Group

4.5

3

1.5

0

Rev

enu

e

B-PON

G-PON

E-PON


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19

PON Standardization

Year

XG-PON Up 2.5G

Down 10G

10G-EPON Up 1/10G

Down 10G

10G

1G

2000 2005 2010

ITU-T

IEEE

Bit

Ra

te(b

it/s

)

G-PON Up 1.25G

Down 2.5G 1G-EPON Up 1.25G

Down 1.25G

B-PON Up 155/622M

Down 155/622M

NG-PON1

2015

NG-PON2 Up 10G

Down 40G

100G

40G

100M A-PON

Up 155M

Down 155M

1995

NG-PON3 Up 40G

Down 100/250G

2020


Source: Figure 8-2 , ITU-T Rec. G.989.1, March 2013. Table 9-1, Draft new Recommendation ITU-T G.989.2, 40-Gigabit-capable passive optical networks 2 (NG-PON2): Physical media dependent (PMD) layer specification, TD 170 Rev.2 (PLEN/15) , April 2014.

NG-PON2 U (Narrow)

NG-PON2 D

RF-Video

1260

1280

1300

1320

1340

1360

1380

1400

1420

1440

1460

1480

1500

1520

1540

1560

1580

1600

1620

1640

Wavelength (nm)

O-Band E-Band S-Band C-Band L-Band U-Band

10GE/XG-PON U/S

GPON U/S

(Narrow/Reduced)B/GPON

GE-PON U/S

B/GPON

GE-PON D/S RF-Video

10GE/XG-PON D/S

Wavelength Allocations for PONs


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IEEE PON vs ITU-T PON

Organization IEEE ITU-T

Group IEEE 802.3ah IEEE 802.3av IEEE 802.3bk

ITU-T SG15 Q2

PON Specs 1G-EPON 10G-EPON Extended EPON

B-PON G-PON XG-PON NG-PON2

Management System

SIEPON OMCI

Frame Gbps based Ethernet Frame GEM

Services Ethernet Service Full Service (Ethernet, TDM, POTS)

SIEPON: Service Interoperability in Ethernt Passive Optical Networks

OMCI: ONU Managmeent and Control Interface

GEM: G-PON Encapsulation Method

GTC: G-PON Transmission Convergence


PON Specifications

System B-PON (Broadband PON)

G-PON

(Gigabit-capable PON)

GE-PON

(Gigabit Ethernet PON)

10G-EPON

(10Gigabit Ethernet PON)

XG-PON1

(10Gigabit-capable PON)

Standard ITU-T G.983 (1983/2005)

ITU-T G.984 (2003/2008)

IEEE802.3 ah EFM (2004/2005))

IEEE802.3 av EFM (2009)

ITU-T G.987 (2010)

MAC Service Ether, TDM, POTS Ether, TDM, POTS Ethernet Data Ethernet Data Ether, TDM, POTS

Frame ATM Frame GEM Frame Ethernet Frame Ethernet Frame XGEM Frame

Physical Layer

Distance 10/20km 10/20km

(logical 60km) 10/20km 10/20km 10/20km

Maximum Splitting 64 64 16 or over 16/32 64

Speed Up 156M, 622Mbps

156M, 622M, 1.25G 1.25Gbps 1.25G, 10.3Gbps 2.5Gbps

Down 156M, 622Mbps 1.25G, 2.5Gbps 1.25Gbps 10.3Gbps 10.3Gbps

Code Scrambled NRZ Scrambled NRZ 8B10B 64B66B Scrambled NRZ

Optical Link Budget 25/30dB 15/20/25dB 20/24dB 20/24/29dB 29/31dB

Wavelength Allocation

Up 1260-1360nm 1260-1360nm 1260-1360nm 1260-1280nm(10Gbps) 1260-1360nm(1Gbps)

1260-1280nm(XG-PON1) 1290-1330nm(G-PON)

Down 1480-1500nm 1480-1500nm 1480-1500nm 1575-1580nm(10Gbps) 1480-1500nm(1Gbps)

1575-1580nm(XG-PON1) 1480-1500nm(G-PON)

RF-TV 1550-1560nm 1550-1560nm 1550-1560nm 1550-1560nm 1550-1560nm

Remarks

EFM: Ethernet in the First Mile also called NG-PON1


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Requirements for NG-PON2 (1/2)

• Wide Applications:

– Residential, business, mobile backhaul and others

• Base system: 40Gbps downstream, 10Gbps upstream

– 4 channels in each direction

– Compatible with G-PON, XG-PON, and RF video overlay

– 20km @ 1:64 split ratio fully passive plant capable

• Optional extra capabilities

– 8 channels in each direction

– 10Gbps upstream

– DWDM overlay


Requirements for NG-PON2 (2/2)

• Power saving; Sleep modes and eco devices

• Long reach and high splitting ratio

• Synchronization in frequency and time

– Application to support mobile backhaul

• Highly reliability

– Cost effective redundant configuration

• Upgradability and Unbundling; WDM

– Regulators impose an obligation to provide access to third

parties in the European Union

– G-PON/XG-PON coexistence

• Conformance and multi-vendor Interoperability


2015/2/19

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Wavelength Allocations for PONs

Source: Figure 8-2 , ITU-T Rec. G.989.1, March 2013.

Table 9-1, Draft new Recommendation ITU-T G.989.2, 40-Gigabit-capable

passive optical networks 2 (NG-PON2): Physical media dependent (PMD)

layer specification, TD 170 Rev.2 (PLEN/15) , April 2014.

1260

1280

1300

1320

1340

1360

1380

1400

1420

1440

1460

1480

1500

1520

1540

1560

1580

1600

1620

1640

Wavelength (nm)

O-Band E-Band S-Band C-Band L-Band U-Band

10GE/XG-PON U/S

GPON U/S

(Narrow/Reduced)B/GPON

GE-PON U/S

B/GPON

GE-PON D/S RF-Video

10GE/XG-PON D/S

NG-PON2 U (Narrow)

NG-PON2 D

RF-Video


NG-PON2(draft) System NG-PON2 (Next Generation PON2)

Standard ITU-T G.989 (2015)

Application BASIC EXTENDED BUSINESS Mobile Backhaul

MAC Service Ether, TDM, POTS

Frame XGEM Frame/TWDM

Physical Layer

Distance 40km(60km)

Maximum Splitting 256 -

Speed Up 10Gbps(2.5Gx4WDM) 20Gbps(2.5Gx8WDM) 40Gps(10Gx4WDM) 1.25G, 2.5G, 10Gbps

Down 40Gbps(10Gx4WDM) 80Gbps(10Gx8WDM) 40Gps(10Gx4WDM) 1.25G, 2.5G, 10Gbps

Code Scrambled NRZ

Optical Link Budget 25/30dB

Wavelength Allocation

Up 1524-1544nm(Wide) 1528-1540nm(Reduced) 1532-1540 (Narrow) 1603-1625nm (shared)

1524-1625nm(expanded)

Down 1596-1603nm 1603-1625nm (shared)

RF-TV 1550-1560nm 1550-1560nm

Remarks XGEM: XG-PON encapsulation method


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NG-PON2 standards arrangement

• G.989.1 : Requirements

– Consented at Sep 2012 meeting

• G.989.2 : Physical medium dependent layer

– Draft in progress

• G.989.3 : TC layer

– NG-PON2 specific TC features

• G.987.3 : Transmission convergence layer

– 10Gbps upstream to be added to this base standard

• G.multi : Multiple Wavelength Passive Optical Networks

(MW-PON), wavelength control layer

• G.988 : ONU management and control interface


NG-PON2 Coexistence with Legacy PON

G.989.1 Figure 5-1 Functional reference architecture and points

for NG-PON2 system coexistence with legacy systems Koichi Asatani 201５

2015/2/19

24

TWDM standards arrangement

• G.ngpon2.1 = Requirements – Consented at Sep 2012 meeting

• G.ngpon2.2 = Physical medium dependent layer – Draft in progress

• G.ngpon2.3 = TC layer – NG-PON2 specific TC features

• G.987.3 = Transmission convergence layer – 10G upstream to be added to this base standard

• G.multi = Wavelength control layer – Draft already started in Q2/15

• G.988 = ONU management and control interface – Standard in force, can be easily reused for TWDM


PON Standards related Organizations

IEEE

IEEE Com Soc

802.3ah

1G-EPON

802.3av

10G-EPON

P1904.1

SIEPON

ITU-T

Study Group 15

Broadband Forum

(BBF) FSAN

MOU

Liaison

Joint Work

Contributions


2015/2/19

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Future Issues

Core Transmission Systems

TDM

WDM

1.3um LD 1.5um LD EDFA

1980 1990 2010 2000

1P

1M

1G

1T

Tran

smis

sio

n B

it R

ate

(bit

/s)

G.652 G.656 G.655

G.654

G.653

2030 2040 2020

Digital Coherent

SDM

G.657

1E

Year

Capacity Limit


2015/2/19

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Multi-Core Fibers


Multi-Core Fiber with WDM

Lambda Channels multi-core fiber


2015/2/19

27

Summary

• PON is one of the most successful

technologies from view point of economy and

ecology based on global standards developed

by ITU-T and IEEE.

• Further development for higher bandwidth and

lower cost is essential to meet rapidly growing

traffics.

• Regulations?


Koichi Asatani 2010

Merci! Thank you!

trends and issues of ftth and g-pon koichi asatani,...

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