Statistical analysis of multiple access interference in Rayleigh fading environment for MIMO CDMA systems

Date

2014-07

Advisors

Journal Title

Journal ISSN

ISSN

Volume Title

Publisher

IEEE Computer Society

Type

Conference

Peer reviewed

Yes

Abstract

A major limiting factor in the performance of MIMO-CDMA systems is multiple access interference (MAI) which can reduce the system capacity as well as bit error rate (BER). Thus, statistical characterization of MAI is vital in analyzing the performance of such systems. Since, the statistical analysis of MAI in MIMO-CDMA is quite involved especially in the presence of fading channels, existing works in literature employ suboptimal approaches to detect the subscriber without involving the need for MAI statistics such as successive interference cancellation (SIC) and parallel interference cancellation (PIC). To date, the exact characterization of multiple access interference in MIMO-CDMA is an unsolved problem. In this paper, we derive the expressions for the probability density function of MAI and MAI plus noise in MIMO-CDMA systems in the presence of both Rayleigh fading channels and additive Gaussian noise. Simulation results show that the theoretical predictions are very well substantiated.

Description

Keywords

CDMA, multiple access interference (MAI), Multiple-input multiple-output (MIMO), probability density function (pdf)

Citation

Mahmood, K. et al. (2014) Statistical analysis of multiple access interference in Rayleigh fading environment for MIMO CDMA systems. 2014 IEEE Workshop on Statistical Signal Processing (SSP), pp. 412-415

Rights

Research Institute