Diversity Analysis of Smart Relaying with Equal Gain Combining
Diversity Analysis of Smart Relaying with Equal Gain Combining
复制标题
等增益组合智能继电的多样性分析
DOI：
10.1109/icc.2009.5198943
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
T. Le
中科院分区：
文献类型：
--
作者：
N. H. Vien;Ha H. Nguyen;T. Le
协作中继是一种在慢衰落无线环境中建立虚拟天线阵，从而提供空间分集的方法。从实际实现的角度来看，需要设计一个中继系统，可以实现最大的分集阶数与低的系统复杂度。将等增益合并（EGC）技术应用于中继系统是一种很有前途的方案，也是本文的主要研究内容。特别是，EGC和智能中继技术相结合的解码和转发（DF）中继处理方法。结果表明，对于一个中继和M相移键控（M-PSK）调制的系统，在Nakagami-m衰落环境中，最大分集阶数为2 m。对于K个中继器，数值结果表明分集阶数为m（K + 1）。
Cooperative relaying has been proposed as a way to create a virtual antenna array, hence providing spatial diversity in slow fading wireless environment. From the practical implementation perspective, one needs to design a relaying system that can achieve the maximum diversity order with a low system complexity. One promising candidate is to incorporate equal gain combining (EGC) technique into relaying systems and it is the main focus of this paper. In particular, the techniques of EGC and smart relaying are combined in the decode-and-forward (DF) relay processing method. It is shown that for a system with one relay and M phase-shift-keying (M-PSK) modulation, a maximum diversity order of 2m is achieved in Nakagami-m fading environment. With K relays, numerical results suggest that the diversity order is m(K + 1).