Performance comparison of 2-D time-wavelength and coherent time-spreading OCDMA systems

Xiaogang Chen; Dexiu Huang

doi:10.1117/12.803592

11 November 2008 Performance comparison of 2-D time-wavelength and coherent time-spreading OCDMA systems

Xiaogang Chen, Dexiu Huang

Proceedings Volume 7136, Optical Transmission, Switching, and Subsystems VI; 71364B (2008) https://doi.org/10.1117/12.803592
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China

Abstract

We compared the theoretical bit-error-rate (BER) and throughput performance limits of 2-D time-wavelength and coherent time-spreading optical code division multiple access (OCDMA) communication systems. The results show that the BER performance of the coherent time spreading OCDMA scheme is much superior to 2-D time wavelength scheme in the multiple access interference (MAI) noise limited case without considering beat noise, and the beat noise affects the system performance seriously and appears as a dominant source of noise for the two kinds of OCDMA systems. Nevertheless, the 2-D time wavelength scheme has better tolerance to beat noise than coherent time spreading OCDMA scheme, and the superiority is more apparent with the increasing of the code length N. While the coherent time spreading scheme has higher peak throughput, and it supports a higher throughput than the 2-D time wavelength scheme at higher offered loads.

Citation Download Citation

Xiaogang Chen and Dexiu Huang "Performance comparison of 2-D time-wavelength and coherent time-spreading OCDMA systems", Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 71364B (11 November 2008); https://doi.org/10.1117/12.803592

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