Convergence of Future Passive Optical and Wireless Personal Area Networks for Triple

Play Service Distribution Stuart Walker1, Terry Quinlan1, Mehmet Toycan1, Manoj Thakur1, Rouzbeh Razavi1, Emilio

Hugues-Salas1 and Michael Parker2

1 Dept. of Electronic Systems Engineering, University of Essex, Colchester, UK Tel: +44 01206 872413, Fax: +44 01206 872900, E-mail: stuwal@essex.ac.uk

2 Fujitsu Laboratories of Europe, Columbia House, Ipswich, IP5 3RE, U.K E-mail: m.parker@ftel.co.uk

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All applications -- voice, data, image, video, multimedia -- conveyed on an all digital, packet-switched, Burst mode, broadband, low latency network or “platform”

A “network of networks” platform that uses common, open, non-proprietary standards and protocols (e.g., the Internet Protocol -- IP)

Extension of this platform using wireless technology to allow users to communicate anyplace, anytime, in any mode or combination of modes.

Customer NetworkDistribution Network18/04/23 12:55 PM 3

fibre

BackhaulNetwork

Wireless/RoF/line of sight

DP2

DP1

Core Network

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ONU

ONU

VOICE

DATA

VIDEO

DATA

GPON ACCESS SYSTEM

DownstreamUpstream

Maximum bit rate 2488 Gbit/s both downstream and upstream

PABX ONU

1:32 (64) Optical Splitter

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LR-PON means: 100 Km between local exchange and metro node >1024 splits Bit rate both downstream/upstream 10Gbit/s LR-PON not commercially available and is a research concept

OLT<70 km SSMF

BMR

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OLT

ONU 1

ONU 2

ONU n

OLT

ONU 1

ONU 2

ONU n

BMR1

2

n1

2

n

Extinction

ratio

Loud/soft

ratio

1

2

n1

2

n

Extinction

ratio

Loud/soft

ratio

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Burst Mode Receivers (BMRs) are a particular component situated in the OLT

Function of the BMRs: Adaptation of the power intensity of each incoming

burst

Adaptation of the bit phase of each incoming burst

Two main techniques for BMR: AC/DC coupling

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EYE DIAGRAM OF LOUD BURST AFTER THE COMPARATOR PRBS SIGNAL (+4dBm)

EYE DIAGRAM OF SOFT BURST AFTER THE COMPARATOR PRBS SIGNAL (-13dBm)

JON 2007

17dB of dynamic range!!!

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OOutput Discriminator – 50% Delay

80ps 80ps

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Source: http://www.iviht.com

18/04/23 12:55 PM 11Source: http://www.iviht.com

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Source: C. Lee, JLT, Dec. 2006

1 Mb/s

WDM-PON

WDM-PON

WDM-PONG-PON

10 G-PON

10 Gb/s

100 Mb/s

1 Gb/s

PON: 32 split ratio

Ded

icat

ed S

pee

d [

Mb

/s]

10,000

1,000

100

10

1970 1980 1990 2000 2010

E-PON

B-PON

A-PON

A-PON

10 Mb/s

Ethernet(2.94M)

ALOHA

10 Mb/s

Shared line rate

1.7 Mb/s

4.8 Mb/s

19.4 Mb/s30 Mb/s

78 Mb/s

312 Mb/s

Transmitter based on DFB laser array.

MZ-modulator produces OFDM signal.

4-QAM OFDM signal.N=122 carriers with 528MHz

bandwidth per band.

DFBLaser array

λ1 – λN

MZ-MOD

OFDM Transmitter

1xNsplitter

23

23

1

11SOA

SOA

N

1

SingleCell 3km Single

Mode Fibre

Downstream

Upstream

SingleCell

1 N

UpstreamData

CDP

1

N

NxN AWG

1xN power spilitter with an SOA switch in each arm. Acts as a high-speed optical switch to route the signal to the input ports of NxN AWG.

SOA switches is also used as amplifiers to compensate for the loss of the splitter. The SOAs are activated according to the Latin routing characteristics of NxN AWG.

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All multimedia sources are connected to each other using wifi network

Wireless sources are PC based servers, Wifi based media players, camcorder, cameras , connected via broadband to service providers

Wireless clients communicate using UWB with the sources

Wireless clients are TV, DVR, mobile phone, palmtop etc.

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WANVoice, data,

Location/tracking,telemetry

WMANBridging access

Distribution,Bypass backhaul

WLANVoice, data,Messaging,

media

WPANSynchronization,

Media, Serial, USB,Location, tracking

1kbps 10kbps 100kbps 1Mbps 10Mbps 100Mbps 1Gbps

Ra

ngeM

ob

ility

Bit Rate

Low

Full

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WiFi+

UWB

802.11abg +ei

Best effort services, Browsing, streaming, file download, e-mail, etc.

Narrowband, 2.4GHz and 5GHz

Large coverage, 10’s of meters

Datarates of upto 270mbps

100-200mW power radiation

802.15.3, 802.15.4a

Multimedia distribution between client devices like TV, DVR, Security camera, camcorders etc.

Wideband, 3.1-10.6 GHz and beyond

Short range, a few meters

Datarates of 480mbps and beyond

Power levels at parasitic levels

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Convergence of passive optical and wireless personal area networks is an integral part of triple (and quad-play) service provision

Large-scale provision of cost reduced components is essential

Much is yet to be done

Continuing strong efforts are required in the European Community

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