Adaptive mobile spot diffusing angle diversity MC-CDMA optical wireless system in a real indoor environment

Authors:
Fuad E. Alsaadi;Jaafar M. H. Elmirghani
Affiliations:
School of Electronic & Electrical Engineering, University of Leeds, UK;School of Electronic & Electrical Engineering, University of Leeds, UK
Venue:
IEEE Transactions on Wireless Communications
Year:
2009

Citing 1
Cited 1

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IEEE Transactions on Information Theory

Beam power and angle adaptation in multibeam 2.5 Gbit/s spot diffusing mobile optical wireless system

IEEE Journal on Selected Areas in Communications - Special issue on next-generation broadband optical access network technologies

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Abstract

In this paper, we introduce a mobile optical wireless (OW) multicarrier - code division multiple access (MC-CDMA) system that employs a new adaptive line strip multibeam system (ALSMS) with diversity detection. Our results indicate that a significant improvement in the bit error rate (BER) can be obtained in the presence of very directive noise, multipath propagation and shadowing typical in a real indoor environment. With transmitter and/or receiver mobility, ALSMS can improve the BER performance by almost 10-5 with 2 active users, and increase the signal-to-noise ratio (SNR) by more than 13 dB compared to the unadaptive LSMS.