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

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2 Author(s)
Alsaadi, F.E. ; Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds, UK ; Elmirghani, J.M.H.

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.

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Wireless Communications, IEEE Transactions on  (Volume:8 ,  Issue: 5 )