Spectral Efficiency of Phase Encoding OCDMA Systems

Author:

Chen Xiao Gang1,Jiang Chao1,Liu Zhao Xu1,Huang De Xiu2

Affiliation:

1. China Three Gorges University

2. Wuhan National Laboratory for Optoelectronics (WNLO)

Abstract

The spectral efficiency and bit-error-rate (BER) of phase encoding optical code division multiple access (OCDMA) systems is evaluated, coherent time-spreading (TS) and spectral phase encoding (SPE) OCDMA systems are considered. The results indicate that SPE-OCDMA has better tolerance to performance degradation due to receivers bandwidth limitation than TS-OCDMA system, while for the practical en/decoders with implementable longest code length, TS-OCDMA can yield a spectral efficiency advantage over SPE-OCDMA systems.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

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