Article thumbnail
Location of Repository

Optimum mapping in an optical multiple pulse position modulation link using a maximum likelihood sequence detection scheme

By K. Nikolaidis and Martin J.N. Sibley

Abstract

The performance analysis of any multiple pulse position modulation (PPM) system is extremely time consuming because of the effects of different detection errors on the multiple PPM alphabet. In a small multiple PPM system such as (), there are 64 codewords and each one can have ten possible false alarms, two possible erasures and four possible wrong-slot errors. The situation is worse if higher-order codes are considered. A novel algorithm, which reduces the time taken to predict the sensitivity of a multiple PPM system from almost 2 h of analysis to under a second, is presented. Results obtained using this method agree with those obtained using a full mathematical model. The authors also present a methodology that obtains a close to optimum mapping for any multiple PPM system. Detailed results show the effectiveness of this mapping routine

Topics: TA, QC
Publisher: Institution of Engineering and Technology
Year: 2009
DOI identifier: 10.1049/iet-opt:20080002
OAI identifier: oai:eprints.hud.ac.uk:4033
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://dx.doi.org/10.1049/iet-... (external link)
  • http://www2.hud.ac.uk/staffpro... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.