Title :
Simple and Accurate Approximation for the Bit-Error Rate of Bandlimited DS-CDMA in Nakagami Fading
Author :
Jianping An ; Bin Xue ; Lintao Li ; Ru Liu ; Yi Liu
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing, China
Abstract :
The bit error rate (BER) of asynchronous direct sequence code division multiple access (DS-CDMA) systems is studied using Hermite Gaussian approximation (HGA). Existing HGA based BER formula involves a numerical integral in its computation, and only applies to time-limited waveforms and AWGN channel. By contrast, we propose a closed-form BER expression that enables convenient performance analysis for DS-CDMA using band-limited waveforms in Nakagami-m fading channels.
Keywords :
AWGN channels; Gaussian processes; Hermitian matrices; Nakagami channels; code division multiple access; error statistics; integral equations; spread spectrum communication; AWGN channel; DS-CDMA system; HGA based BER formula; Hermite Gaussian approximation; Nakagami-m fading channel; asynchronous direct sequence code division multiple access system; band-limited waveform; bandlimited DS-CDMA; bit-error rate; numerical integral; time-limited waveform; Approximation methods; Bit error rate; Error probability; Fading; Gaussian approximation; Multiaccess communication; Nakagami distribution;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-684-2
DOI :
10.1109/WiCOM.2012.6478673
