Title :
Probability density functions for SNIR in DS-CDMA
Author :
Matolak, David W.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Ohio Univ., Athens, OH
fDate :
6/1/2009 12:00:00 AM
Abstract :
Analytical expressions for the probability density function of block-wise signal-to-noise-plus-interference ratio for both synchronous and asynchronous direct-sequence spread spectrum code-division multiple access systems are developed, for equal average energy signals on the Gaussian and Rayleigh flat fading channels. Using the standard Gaussian approximation for multi-user interference, accurate density approximations are obtained, which agree very well with computer simulation results.
Keywords :
Rayleigh channels; code division multiple access; multiuser detection; probability; spread spectrum communication; Gaussian approximation; block-wise signal-to-noise-plus-interference ratio; direct-sequence spread spectrum code-division multiple access systems; energy signals; fading channels; multi-user interference; probability density functions; Fading; Gaussian approximation; Interference; Multiaccess communication; Multiuser detection; Probability density function; Quality of service; Signal to noise ratio; Spread spectrum communication; Statistics; Spread spectrum, code division multiple access.;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2009.06.040385
