Performance of Decode-and-Forward Cooperative Diversity Networks Over Nakagami-m Fading Channels
Performance of Decode-and-Forward Cooperative Diversity Networks Over Nakagami-m Fading Channels
复制标题
DOI：
10.1109/glocom.2007.823
复制
发表时间：
2007-12
期刊：
影响因子：
--
通讯作者：
S. Ikki;M. Ahmed
中科院分区：
文献类型：
--
作者：
S. Ikki;M. Ahmed
分析了独立非等同平坦Nakagami-m衰落信道下采用解码转发（DF）中继的协作分集网络的端到端误比特率性能。我们推导出一个封闭形式的表达式的错误率和分析其依赖于信道参数。在DF协作分集中，中继检测接收到的信号，然后将信号中继到目的地。目的地将从源和中继接收到的两个信号合并。这里我们假设中继站独立地（基于中继站处的接收信号质量）决定是否将信号转发到目的地。计算机模拟被用来验证我们的分析结果。结果表明，由于DF合作分集的使用显着的性能改善。此外，结果表明，源中继信道的错误性能的影响最大。
This paper analyzes the end-to-end bit error rate performance of cooperative diversity networks using decode-and-forward (DF) relaying over independent non-identical flat Nakagami-m fading channels. We derive a closed-form expression for the error rate and analyze its dependence on the channel parameters. In DF cooperative diversity, a relay detects the received signal and then relays the signal to the destination. The destination combines the two signals received from the source and relay. We assume here that the relay decides independently (based on the received signal quality at the relay) whether or not to forward the signal to the destination. Computer simulations are used to validate our analytical results. Results show the significant performance improvement due to the use of the DF cooperative diversity. Also, results indicate that the source-relay channel has the most influence on the error performance.