Optical wireless communication;
MC-CDMA;
beam power adaptation;
real indoor environment;
COMMUNICATION;
D O I:
10.1109/TWC.2009.070857
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
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 9 and increase the signal-to-noise ratio (SNR) by more than 13 dB compared to the unadaptive LSMS.