摘要： 研究固定增益放大转发协议，信源和终端需要配置多根天线，而中继只有单根天线的两跳中继转发系统。为获得空间分集，信源利用正交空时分组编码的发射策略，终端利用选择合并方式，简化中继配置的复杂度，采用固定增益放大转发的协议。导出Nakagami-m衰落下系统终端概率的封闭表达式与平均误比特率的封闭表达式，通过蒙特卡罗仿真和数值结果比较，验证了封闭表达式的精确性。
关键词:
多输入多输出技术,
固定增益放大转发,
分集技术,
无线中继系统,
正交空时分组编码,
Nakagami-m衰落
Abstract: This paper researches that the source and destination are equipped with multiple antennas, the relay only has a two-hop relay system with a single antenna. Quasi-orthogonal Space-Time Block Code(OSTBC) and MRC are employed at source, and destination, respectively, to achieve spatial diversity. To reduce the implementation complexity of the relay, the fixed-gain amplify-to-forward relay protocol is used. New exact expressions for outage probability and average bit error rate are derived in Nakagami-m fading environments. Numerical comparison results between Monte Carlo simulations show the accuracy of the theoretical expressions.
Key words:
multiple-input multiple-output technique,
fixed-gain amplify-to-forward,
diversity techniqu,
wireless relay systems,
Quasi- orthogonal Space-Time Block Code(OSTBC,
Nakagami-m fading
中图分类号:
张攀索, 李光平, 刘东峰. Nakagami-m衰落MIMO中继系统性能分析[J]. 计算机工程, 2012, 38(21): 86-88.
ZHANG Pan-Suo, LI Guang-Beng, LIU Dong-Feng. Performance Analysis of MIMO Relay Systems over Nakagami-m Fading[J]. Computer Engineering, 2012, 38(21): 86-88.