Performance of DSSS techniques in multispot diffusing links for infrared wireless access

Haitao Zhang; Mali Gong; Ping Yan; Shanshan Zou; Kai Zhang; Xin Yang; Wei Jin; Feng Jiang

doi:10.1117/12.480631

26 August 2002 Performance of DSSS techniques in multispot diffusing links for infrared wireless access

Haitao Zhang, Mali Gong, Ping Yan, Shanshan Zou, Kai Zhang, Xin Yang, Wei Jin, Feng Jiang

Proceedings Volume 4912, Applications of Broadband Optical and Wireless Networks; (2002) https://doi.org/10.1117/12.480631
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

Abstract

The performance of high-speed non-directed diffuse indoor infrared wireless communication is mainly affected by intersymbol interference (ISI) due to multipath dispersion. The direct-sequence spread spectrum systems are applied to combat multipath dispersion. However, when the data rate is close to the channel 3dB bandwith, the spread spectrum technique may have a worse performance than OOK transmission as it is affected by more severe ISI. Exploiting muli-spot link, we can improve the performance of spread spectrum technique to be much better than OOK modulation because a higher channel bandwith are obtained. Both the analytical and simulation results are presented.

Citation Download Citation

Haitao Zhang, Mali Gong, Ping Yan, Shanshan Zou, Kai Zhang, Xin Yang, Wei Jin, and Feng Jiang "Performance of DSSS techniques in multispot diffusing links for infrared wireless access", Proc. SPIE 4912, Applications of Broadband Optical and Wireless Networks, (26 August 2002); https://doi.org/10.1117/12.480631

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