Space-time CDMA systems over Nakagami-m fast-fading channels

被引：0

作者：

Sacramento, Ariel Lionel ^{[1
]}

Hamouda, Walaa ^{[1
]}

机构：

[1] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 1M8, Canada

来源：

2007 IEEE 18TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-9 | 2007年

关键词：

transmit diversity; multiuser CDMA; multiuser detection; Nakagami channels;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The performance of a space-time spreading (STS) transmit diversity scheme is examined over a frequency-flat and fast-fading Nakagami-m channel. Our focus will be on the uplink of the communication system where the STS system employs N=2 and L antennas at the user side and base-station (BS) respectively. Direct-sequence code-division multiple-access (DS-CDMA) is used in order to support many users and a linear decorrelator detector is used in order to combat the effect of multi-user interference. The modulation scheme considered is binary phase-shift keying (BPSK). In our study, we start by determining the probability density function (pdf) of the signal-to-interference and noise ratio (SINR) at the output of the ST combiner at the receiver side. Using this pdf, we derive a closed form expression for the bit error rate (BER) of the underlying system. The accuracy of the BER expression is verified when compared to simulations results for different values of the fading figure m.

引用

页码：1985 / 1989

页数：5

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