Nonregenerative Dual-Hop Cooperative Links with Selection Diversity
Nonregenerative Dual-Hop Cooperative Links with Selection Diversity
复制标题
DOI：
10.1155/wcn/2006/17862
复制
发表时间：
2006-04
影响因子：
2.6
通讯作者：
T. Tsiftsis;G. Karagiannidis;P. T. Mathiopoulos;S. Kotsopoulos
中科院分区：
文献类型：
--
作者：
T. Tsiftsis;G. Karagiannidis;P. T. Mathiopoulos;S. Kotsopoulos
研究了在独立非相同Nakagami衰落信道下，目的端采用非再生中继和选择合并接收机的双跳协作分集系统的端到端性能。给出了端到端信噪比（）的累积分布函数和概率密度函数的闭合表达式，同时推导了矩和矩母函数的解析公式。使用这些统计结果，封闭形式的中断概率的表达式，信道状态信息和固定增益继电器。此外，对于固定增益中继的情况，平均端到端、衰落量和平均误比特率可以被数值地评估。提出的数学分析得到了数值例子的补充，包括不平衡对整体性能的影响以及衰落的严重程度。
The end-to-end performance of dual-hop cooperative diversity systems equipped with nonregenerative relays and a selection combining receiver at the destination terminal over independent and nonidentical Nakagami- fading channels is studied. Closed-form expressions for the cumulative distribution function and the probability density function of the end-to-end signal-to-noise ratio () are presented, while analytical formulae are derived for the moments and the moment generating function. Using these statistical results, closed-form expressions for the outage probability are presented for both channel state information and fixed gain relays. Furthermore, for the case of fixed gain relay, the average end-to-end, the amount of fading, and the average bit error rate can be numerically evaluated. The proposed mathematical analysis is complemented by numerical examples, including the effects on the overall performance of thes unbalancing as well as the fading severity.