Performance enhancement of spectral‐amplitude coding OCDMA system using novel PPM signalling

Performance enhancement of spectral‐amplitude coding OCDMA system using novel PPM signalling A spectral‐amplitude coding (SAC) optical code‐division multiple‐access (OCDMA) system with M‐ary pulse‐position modulation (PPM) signalling is investigated. Novel combinatorial construction of optical signature codes is also presented, as that is applicable to both synchronous and asynchronous incoherent OCDMA. A union upper bound on the probability of error is then derived and the performance characteristics are discussed in the presence of multiple‐access interference (MAI) and intensity noise. The numerical results show that the bit‐error performance of the OCDMA system with proposed PPM coding outperforms that associated with on—off keying (OOK). Copyright © 2008 John Wiley & Sons, Ltd. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Transactions on Emerging Telecommunications Technologies (Electronic) Wiley

Performance enhancement of spectral‐amplitude coding OCDMA system using novel PPM signalling

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Publisher
Wiley
Copyright
Copyright © 2008 John Wiley & Sons, Ltd.
ISSN
1124-318X
eISSN
2161-3915
DOI
10.1002/ett.1310
Publisher site
See Article on Publisher Site

Abstract

A spectral‐amplitude coding (SAC) optical code‐division multiple‐access (OCDMA) system with M‐ary pulse‐position modulation (PPM) signalling is investigated. Novel combinatorial construction of optical signature codes is also presented, as that is applicable to both synchronous and asynchronous incoherent OCDMA. A union upper bound on the probability of error is then derived and the performance characteristics are discussed in the presence of multiple‐access interference (MAI) and intensity noise. The numerical results show that the bit‐error performance of the OCDMA system with proposed PPM coding outperforms that associated with on—off keying (OOK). Copyright © 2008 John Wiley & Sons, Ltd.

Journal

Transactions on Emerging Telecommunications Technologies (Electronic)Wiley

Published: Oct 1, 2009

References

  • Feasibility study of SOA‐based noise suppression for spectral amplitude coded OCDMA
    McCoy, McCoy; Ibsen, Ibsen; Horak, Horak; Thomsen, Thomsen; Richardson, Richardson
  • Cochannel interference cancellation via employing a reference correlator for synchronous optical CDMA systems
    Liu, Liu; Tsao, Tsao

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