Achieving channel capacity using asymmetric signaling control in optical code division multiple access

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Analysis of communication systems usually assumes a symmetric noninput-dependent channel; thus, Shannon capacity can be achieved using a balanced signaling. The optical-code-division-multiple-access channel is dominated by a multiple access interference, which is both asymmetric and input dependent. Consequently, using an unbalanced signaling which depends on the system characteristics can be used to optimize the mutual information of the channel. It is shown that for a given value of mutual information, the number of concurrent users can be significantly increased when the signaling distribution is biased and optimized by matching the source to the channel to achieve channel capacity.

Original languageEnglish
Pages (from-to)4223-4227
Number of pages5
JournalJournal of Lightwave Technology
Volume24
Issue number11
DOIs
StatePublished - 1 Nov 2006

Keywords

  • All optical-code-division-multiple-access (OCDMA) networks
  • Non-Gaussian channels
  • Non-symmetric channels
  • Optimal source matching

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint

Dive into the research topics of 'Achieving channel capacity using asymmetric signaling control in optical code division multiple access'. Together they form a unique fingerprint.

Cite this