Normalized throughput of coherent time-spreading OCDMA under chip-asynchronous assumption

Jianhua Ji; Qing Wu

doi:10.1117/12.849937

2 December 2009 Normalized throughput of coherent time-spreading OCDMA under chip-asynchronous assumption

Jianhua Ji, Qing Wu

Proceedings Volume 7632, Optical Transmission Systems, Switching, and Subsystems VII; 763235 (2009) https://doi.org/10.1117/12.849937
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

Abstract

The effects of pulse shape and pulse width on chip-asynchronous coherent time-spreading OCDMA system are evaluated by the aperiodic cross-correlation function of up-sampled sequence. It can be shown that for chip-asynchronous coherent time-spreading OCDMA, the shorter optical pulse will obtain better aperiodic cross-correlation properties, which can reduce multiple-access interference (MAI) and beat noise (BN). For 127-length Gold sequence, normalized throughput of OCDMA is derived. It can be shown that the shorter optical pulse will obtain larger normalized throughput.

Citation Download Citation

Jianhua Ji and Qing Wu "Normalized throughput of coherent time-spreading OCDMA under chip-asynchronous assumption", Proc. SPIE 7632, Optical Transmission Systems, Switching, and Subsystems VII, 763235 (2 December 2009); https://doi.org/10.1117/12.849937

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