Transmit diversity and linear and decision-feedback equalizations for frequency-selective fading channels

被引：5
|
作者：
Li, L [1 ]
Yao, YD [1 ]
Li, HB [1 ]
机构：
[1] Stevens Inst Technol, Dept Elect & Comp Engn, Hoboken, NJ 07030 USA
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2003年 / 52卷 / 05期
关键词：
equalization; estimation; space-time (ST) coding; transmit diversity;
D O I：
10.1109/TVT.2003.816613
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：
Rapid growth and increasing demands for near-ubiquitous high-quality high-data-rate services present the most challenges for wireless system design. As an effective method to provide such services, space-time (ST) coding is gaining more and more attention. This paper extends ST coding, originally designed for known frequency-nonselective fading channels, to unknown frequency-selective channels. A novel scheme is presented to suppress intersymbol interference, coherently demodulate the information symbols with estimated channel state information in an ST transmit diversity wireless time-division multiple-access system that is equipped with multiple antennas at both transmit and receive sides. The proposed algorithm is powerful and computationally efficient. In addition to the discussion of system identiflability, both theoretical analysis and numerical simulation are presented to illustrate the performance of the proposed estimator and receiver in multipath fading channels.
引用
收藏
页码：1217 / 1231
页数：15
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