Title :
Optimization of spread spectrum characteristics from channel measurements
Author :
Liénard, Martine ; Degardin, Virginie ; Degauque, Pierre
Author_Institution :
Lab. Radiopropagation, Lille Univ., Villeneuve d´´Ascq, France
Abstract :
Spread spectrum techniques are widely used for a multiple access scheme, but another main advantage of this technique is its robustness against important fading. If it is well known that to spread the signal improves the quality of the link, quantitative results relating the BER, the coherence bandwidth and the spread bandwidth of the channel are still missing and it is thus the objective of this contribution to give insights on this point
Keywords :
error statistics; fading channels; multi-access systems; multipath channels; multiuser channels; optimisation; radio links; spread spectrum communication; BER; DPSK; WLAN; bit error rate; channel measurements; coherence bandwidth; fading; four ray model; link quality; multiple access scheme; propagation channel simulation; spread bandwidth; spread spectrum characteristics optimization; spreading factor; wireless local area network; Additive white noise; Bandwidth; Bit error rate; Decoding; Fading; Filters; Gaussian noise; Phase shift keying; Spread spectrum communication; Wireless LAN;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944913
