Joint TAS/SC and power allocation for IAF relaying D2D cooperative networks
Joint TAS/SC and power allocation for IAF relaying D2D cooperative networks
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DOI：
10.1007/s11276-016-1261-8
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发表时间：
2016-04
影响因子：
3
通讯作者：
Lingwei Xu;Hao Zhang;Hao Zhang;Jingjing Wang;T. Gulliver
中科院分区：
文献类型：
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作者：
Lingwei Xu;Hao Zhang;Hao Zhang;Jingjing Wang;T. Gulliver
研究了N-Nakagami衰落信道下基于多中继的增量放大转发中继设备到设备网络在发射天线选择（TAS）下的中断概率（OP）性能。导出了最优和次优TAS格式的OP的精确封闭形式表达式。功率分配问题是制定性能优化。然后通过数值仿真对不同条件下的OP性能进行了评估，验证了分析的正确性。仿真结果表明，最优TAS方案比次优TAS方案具有更好的OP性能，但最优方案与次优方案之间的性能差距随着源端天线数的增加而减小;衰落系数、级联分量数、相对几何增益、天线数和功率分配参数对OP性能有重要影响。
In this paper, the outage probability (OP) performance of multiple-relay-based incremental amplify-and-forward relaying device-to-device networks with transmit antenna selection (TAS) overN-Nakagami fading channels is investigated. The exact closed-form expressions for OP of the optimal and suboptimal TAS schemes are derived. The power allocation problem is formulated for performance optimization. Then the OP performance under different conditions is evaluated through numerical simulations to verify the analysis. The simulation results showed that optimal TAS scheme has a better OP performance than suboptimal TAS scheme, but the performance gap between the optimal and suboptimal schemes diminishes by increasing the number of antennas at the source; the fading coefficient, the number of cascaded components, the relative geometrical gain, the number of antennas, and the power-allocation parameter have an important influence on the OP performance.