Title :
On the Performance of DS Spread-Spectrum Systems in AWGN Channel
Author :
Wang, Cheng ; Yang, Yuhang ; Ying, Rendong
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai
Abstract :
It is known that spread spectrum serves no help against white noise, but little literature gives explicit demonstration on this problem. In this paper, two receiver structures for direct-sequence spread spectrum (DSSS) systems are described, the error probabilities for the two receivers are obtained, and the equivalence of the two receivers is studied. It is shown that a system using spread spectrum does not achieve an improvement in error probability or signal-to-noise ratio (SNR) as long as the background noise is additive white Gaussian noise (AWGN).
Keywords :
AWGN channels; spread spectrum communication; AWGN channel; additive white Gaussian noise; direct-sequence spread spectrum system; error probability; receivers; signal-to-noise ratio; white noise; AWGN channels; Additive white noise; Background noise; Baseband; Error probability; Pulse shaping methods; Signal to noise ratio; Spread spectrum communication; Transmitters; White noise; additive white gaussian noise; direct sequence spread spectrum; error probability; signal-to-noise ratio;
Conference_Titel :
Communications and Mobile Computing, 2009. CMC '09. WRI International Conference on
Conference_Location :
Yunnan
Print_ISBN :
978-0-7695-3501-2
DOI :
10.1109/CMC.2009.258
