Access timing controlled direct-detection optical CDMA systems with PPM signaling

研究成果: Conference article

抜粋

We propose an access timing controlled direct detection optical code division multiple-access (ATC-CDMA) system with pulse position modulation (PPM) signaling to improve the performance of the direct-detection optical CDMA systems with PPM signaling without narrowing the chip width. In ATC-CDMA system, an access timing of each user to the network is controlled and the effect of channel crosstalk is reduced. We analyze the performance of the proposed system under the assumption of Poisson shot noise model for the receiver photodetector. We compare the performance of ATC-CDMA system using PPM signaling with that of conventional CDMA system using PPM signaling at the fixed bit rate and chip width. It is shown that ATC-CDMA system has better performance than conventional CDMA system. Moreover, it is shown that ATC-CDMA system with smaller M and lower access timing probability to the network has better performance at the fixed bit rate and chip width.

元の言語English
ページ(範囲)355-359
ページ数5
ジャーナルNational Conference Publication - Institution of Engineers, Australia
1
発行部数94 /9
出版物ステータスPublished - 1994 12 1
イベントProceedings of the International Symposium on Information Theory & Its Applications 1994. Part 1 (of 2) - Sydney, Aust
継続期間: 1994 11 201994 11 24

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ASJC Scopus subject areas

  • Engineering(all)

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