Multiple pulse position modulation employing raised cosine filtering

R. A. Cryan, M. J N Sibley

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Recent work has considered a 1Gbit/s multiple pulse position modulation system (MPPM) operating over plastic optical fibre (POF) while utilising maximum-likelihood detection (MLD) to minimise intersymbol interference (ISI). Here, an original analysis is presented, which significantly simplifies the receiver design by employing raised cosine filtering to eliminate ISI. Practical approximations to the ideal raised cosine filter are examined and it is shown that a very good performance is achieved by using a simple first-order pre-amplifier in cascade with a third-order Butterworth pre-detection filter, both with their bandwidths set at 0.6 times the MPPM slot rate. When operating with a POF bandwidth of 0.7 times the data rate, it is shown that both the ideal raised cosine scheme and the simple Butterworth pre-detection filter system offer improvements in sensitivity of 7.6 and 8dB respectively, over the more complex MPPM MLD system. A simplified analysis for MPPM that predicts sensitivities to within 0.5dB of those determined through the more rigorous treatment is presented.

LanguageEnglish
Pages205-211
Number of pages7
JournalIEE Proceedings: Optoelectronics
Volume153
Issue number4
DOIs
Publication statusPublished - 1 Aug 2006

Fingerprint

pulse position modulation
Pulse position modulation
Plastic optical fibers
plastic fibers
Intersymbol interference
filters
Maximum likelihood
optical fibers
bandwidth
Bandwidth
interference
sensitivity
slots
cascades
receivers
amplifiers
approximation

Cite this

Cryan, R. A. ; Sibley, M. J N. / Multiple pulse position modulation employing raised cosine filtering. In: IEE Proceedings: Optoelectronics. 2006 ; Vol. 153, No. 4. pp. 205-211.
@article{2c950f5c23d446009a7b484384f73cd9,
title = "Multiple pulse position modulation employing raised cosine filtering",
abstract = "Recent work has considered a 1Gbit/s multiple pulse position modulation system (MPPM) operating over plastic optical fibre (POF) while utilising maximum-likelihood detection (MLD) to minimise intersymbol interference (ISI). Here, an original analysis is presented, which significantly simplifies the receiver design by employing raised cosine filtering to eliminate ISI. Practical approximations to the ideal raised cosine filter are examined and it is shown that a very good performance is achieved by using a simple first-order pre-amplifier in cascade with a third-order Butterworth pre-detection filter, both with their bandwidths set at 0.6 times the MPPM slot rate. When operating with a POF bandwidth of 0.7 times the data rate, it is shown that both the ideal raised cosine scheme and the simple Butterworth pre-detection filter system offer improvements in sensitivity of 7.6 and 8dB respectively, over the more complex MPPM MLD system. A simplified analysis for MPPM that predicts sensitivities to within 0.5dB of those determined through the more rigorous treatment is presented.",
keywords = "maximum likelihood detection, optical receivers, pulse position modulation, intersymbol interference, optical fibre communication, butterworth filters, optical filters, multiple pulse position modulation system, receiver design, plastic optical fibre channel, third-order predetection filter, butterworth predetection filter, raised cosine filtering, maximum-likelihood detection, first-order preamplifier",
author = "Cryan, {R. A.} and Sibley, {M. J N}",
year = "2006",
month = "8",
day = "1",
doi = "10.1049/ip-opt:20050084",
language = "English",
volume = "153",
pages = "205--211",
journal = "IEE Proceedings: Optoelectronics",
issn = "1350-2433",
publisher = "Institute of Electrical Engineers",
number = "4",

}

Multiple pulse position modulation employing raised cosine filtering. / Cryan, R. A.; Sibley, M. J N.

In: IEE Proceedings: Optoelectronics, Vol. 153, No. 4, 01.08.2006, p. 205-211.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Multiple pulse position modulation employing raised cosine filtering

AU - Cryan, R. A.

AU - Sibley, M. J N

PY - 2006/8/1

Y1 - 2006/8/1

N2 - Recent work has considered a 1Gbit/s multiple pulse position modulation system (MPPM) operating over plastic optical fibre (POF) while utilising maximum-likelihood detection (MLD) to minimise intersymbol interference (ISI). Here, an original analysis is presented, which significantly simplifies the receiver design by employing raised cosine filtering to eliminate ISI. Practical approximations to the ideal raised cosine filter are examined and it is shown that a very good performance is achieved by using a simple first-order pre-amplifier in cascade with a third-order Butterworth pre-detection filter, both with their bandwidths set at 0.6 times the MPPM slot rate. When operating with a POF bandwidth of 0.7 times the data rate, it is shown that both the ideal raised cosine scheme and the simple Butterworth pre-detection filter system offer improvements in sensitivity of 7.6 and 8dB respectively, over the more complex MPPM MLD system. A simplified analysis for MPPM that predicts sensitivities to within 0.5dB of those determined through the more rigorous treatment is presented.

AB - Recent work has considered a 1Gbit/s multiple pulse position modulation system (MPPM) operating over plastic optical fibre (POF) while utilising maximum-likelihood detection (MLD) to minimise intersymbol interference (ISI). Here, an original analysis is presented, which significantly simplifies the receiver design by employing raised cosine filtering to eliminate ISI. Practical approximations to the ideal raised cosine filter are examined and it is shown that a very good performance is achieved by using a simple first-order pre-amplifier in cascade with a third-order Butterworth pre-detection filter, both with their bandwidths set at 0.6 times the MPPM slot rate. When operating with a POF bandwidth of 0.7 times the data rate, it is shown that both the ideal raised cosine scheme and the simple Butterworth pre-detection filter system offer improvements in sensitivity of 7.6 and 8dB respectively, over the more complex MPPM MLD system. A simplified analysis for MPPM that predicts sensitivities to within 0.5dB of those determined through the more rigorous treatment is presented.

KW - maximum likelihood detection

KW - optical receivers

KW - pulse position modulation

KW - intersymbol interference

KW - optical fibre communication

KW - butterworth filters

KW - optical filters

KW - multiple pulse position modulation system

KW - receiver design

KW - plastic optical fibre channel

KW - third-order predetection filter

KW - butterworth predetection filter

KW - raised cosine filtering

KW - maximum-likelihood detection

KW - first-order preamplifier

UR - http://www.scopus.com/inward/record.url?scp=33747144451&partnerID=8YFLogxK

U2 - 10.1049/ip-opt:20050084

DO - 10.1049/ip-opt:20050084

M3 - Article

VL - 153

SP - 205

EP - 211

JO - IEE Proceedings: Optoelectronics

T2 - IEE Proceedings: Optoelectronics

JF - IEE Proceedings: Optoelectronics

SN - 1350-2433

IS - 4

ER -