Probability density functions for SNIR in DS-CDMA

Author

Matolak, David W.

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Ohio Univ., Athens, OH

Volume

57

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1628

Lastpage

1633

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.;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2009.06.040385

Filename

5089499