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Proceedings Paper

Performance of DSSS techniques in multispot diffusing links for infrared wireless access
Author(s): Haitao Zhang; Mali Gong; Ping Yan; Shanshan Zou; Kai Zhang; Xin Yang; Wei Jin; Feng Jiang
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Paper 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.

Paper Details

Date Published: 26 August 2002
PDF: 8 pages
Proc. SPIE 4912, Applications of Broadband Optical and Wireless Networks, (26 August 2002); doi: 10.1117/12.480631
Show Author Affiliations
Haitao Zhang, Tsinghua Univ. (China)
Mali Gong, Tsinghua Univ. (China)
Ping Yan, Tsinghua Univ. (China)
Shanshan Zou, Tsinghua Univ. (China)
Kai Zhang, Tsinghua Univ. (China)
Xin Yang, Tsinghua Univ. (China)
Wei Jin, Tsinghua Univ. (China)
Feng Jiang, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 4912:
Applications of Broadband Optical and Wireless Networks
Georgi Graschew; Peter M. Schlag, Editor(s)

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