Title :
Adaptive mobile spot diffusing angle diversity MC-CDMA optical wireless system in a real indoor environment
Author :
Alsaadi, Fuad E. ; Elmirghani, Jaafar M H
Author_Institution :
Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds, UK
fDate :
5/1/2009 12:00:00 AM
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.
Keywords :
code division multiple access; diversity reception; error statistics; indoor radio; mobile radio; optical communication; optical noise; optical signal detection; BER performance; SNR; adaptive line strip multibeam system; adaptive mobile spot; angle diversity MC-CDMA optical wireless system; bit error rate; directive noise; diversity detection; indoor environment; multicarrier-code division multiple access system; multipath propagation; multipath shadowing; signal-to-noise ratio; Adaptive optics; Bit error rate; Indoor environments; Laser radar; Multicarrier code division multiple access; Optical noise; Optical receivers; Optical transmitters; Signal to noise ratio; Strips; MC-CDMA; Optical wireless communication; beam power adaptation; real indoor environment;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2009.070857
