Free-space optics supporting multi-user communications for wireless mesh networks

Belal Y. Hamzeh; Mohsen Kavehrad

doi:10.1117/12.570667

25 October 2004 Free-space optics supporting multi-user communications for wireless mesh networks

Belal Y. Hamzeh, Mohsen Kavehrad

Proceedings Volume 5598, Performance, Quality of Service, and Control of Next-Generation Communication Networks II; (2004) https://doi.org/10.1117/12.570667
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

Abstract

For free space optics to support multi user communications, multi-access schemes need to be incorporated. Conventional asynchronous optical code division multiple access (OCDMA) using optical orthogonal codes (OOCs) cannot deliver the required performance due to code interference, which sets a lower bound on the achievable bit error rate. Thus we introduce the use of complementary Walsh Hadamard codes as a promising solution to support synchronous OCDMA, capable of achieving required performance due to inherent interference cancellation, in addition to supporting a higher number of users while maintaining short code lengths, and alleviating some of the stringent requirements on the receiver hardware.

Citation Download Citation

Belal Y. Hamzeh and Mohsen Kavehrad "Free-space optics supporting multi-user communications for wireless mesh networks", Proc. SPIE 5598, Performance, Quality of Service, and Control of Next-Generation Communication Networks II, (25 October 2004); https://doi.org/10.1117/12.570667

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