A mitigation technique of high-power MAI in the multimedia optical CDMA system with the optical power selector

Kohki Ohba, Takaya Miyazawa, Iwao Sasase

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In this paper, we propose a mitigation system of high-level multiple access interference (MAI) for multimedia optical Code-Division Multiple-Access (CDMA) systems using the optical power selector (OPS). The proposed system can eliminate high-intensity MAI at the receiver for low-priority users. Moreover, the proposed system can reduce by half the required number of code sequences compared to the conventional scheme. As a result, the proposed system can increase the number of weights at the same code-length and, thus, obtain higher code spreading gain. We analyze performances of the proposed system and show that both high-priority users and low-priority users achieve lower bit error rates in comparison to the conventional scheme.

Original languageEnglish
Pages (from-to)700-709
Number of pages10
JournalIEICE Transactions on Communications
VolumeE91-B
Issue number3
DOIs
Publication statusPublished - 2008 Jan 1

Keywords

  • MAI
  • Optical CDMA
  • Optical power selector

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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