Title :
Wireless infrared transmission using direct sequence spread spectrum techniques
Author :
Farrell, Timothy O. ; Kiatweerasakul, Montep
Author_Institution :
Sch. of Electron. & Electr. Eng., Leeds Univ., UK
Abstract :
Indoor wireless infrared transmission is severely impaired by noise and interference produced by artificial ambient light as well as multipath dispersion. In particular, the interference produced by fluorescent lamps driven by electronic ballasts causes very large power penalties. In this paper spread spectrum techniques are proposed to combat the penalties caused by artificial light interference and multipath dispersion. Analytical, simulation and experimental results of bit error rate versus signal-to-noise ratio are presented for a 1 Mb/s spread spectrum wireless infrared transmission system. The results show that spread spectrum techniques help to ameliorate degradation caused by artificial light interference and multipath dispersion
Keywords :
dispersive channels; error statistics; fluorescent lamps; light interference; multipath channels; optical communication; spread spectrum communication; 1 Mbit/s; BER; DS-SS; SS wireless IR transmission system; artificial ambient light; artificial light interference; bit error rate; direct sequence spread spectrum techniques; electronic ballasts; experimental results; fluorescent lamps; indoor wireless infrared transmission; multipath dispersion; noise; power penalties; signal-to-noise ratio; simulation results; Analytical models; Bit error rate; Degradation; Electronic ballasts; Fluorescent lamps; Infrared spectra; Interference; Signal analysis; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on
Conference_Location :
Sun City
Print_ISBN :
0-7803-4281-X
DOI :
10.1109/ISSSTA.1998.722478
