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TDDLTE预编码码本选择算法

DOI: 10.13190/jbupt.201203.30.355, PP. 30-33

Keywords: 长期演进,多输入多输出,预编码,信干噪比,奇异值分解

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Abstract:

为解决时分双工长期演进(TDD-LTE)系统中预编码码本选择算法计算复杂度高的问题,在基于容量最大化和基于误码率最小为准则的预编码选择算法的基础上,提出了一种基于信道奇异值分解的预编码选择算法.该算法采用信道平均的思想和发射信号有效功率最大化的准则,在不损失吞吐量性能的前提下,大大降低了算法复杂度.仿真结果表明,该算法所需的计算量只有上述传统算法的26%~33%,而吞吐量性能损失不大.

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