Sum of Non-Identical Independent Squared η-μ Variates and Applications in the Performance Analysis of DS-CDMA Systems

Author

Peppas, Kostas P. ; Lazarakis, Fotis ; Zervos, Theodore ; Alexandridis, Antonis ; Dangakis, Kostas

Author_Institution

Lab. of Wireless Commun., Nat. Center for Sci. Res.-Demokritos, Athens, Greece

Volume

9

Issue

9

fYear

2010

fDate

9/1/2010 12:00:00 AM

Firstpage

2718

Lastpage

2723

Abstract

In this paper, new expressions for the probability density function (pdf) of the sum of non-identical independent squared η-μ random variables are derived. Based on our newly derived results, we provide a pdf-based approach for the performance analysis of 1-D and 2-D RAKE receivers in the context of an asynchronous direct sequence code division multiple access system operating over η-μ fading channels. For the considered system, useful performance metrics such as the outage probability, the channel capacity and the average bit error probability are investigated. Extensive numerical and computer simulation results are presented that illustrate the proposed mathematical analysis.

Keywords

code division multiple access; fading channels; probability; radio receivers; spread spectrum communication; η-μ fading channel; DS-CDMA systems; RAKE receiver; asynchronous direct sequence code division multiple access system; nonidentical independent squared η-μ random variable; probability density function; Channel capacity; Direct-sequence code-division multiple access; Diversity reception; Error probability; Fading; Measurement; Multiaccess communication; Multipath channels; Performance analysis; Probability density function; Random variables; Receiving antennas; Wireless communication; η-μ fading; RAKE receiver; average bit error probability; channel capacity; outage probability; probability density function;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2010.071410.091839

Filename

5529757