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Relay Selection in the FAF Relaying M2M Cooperative Systems

机译：FAF中继M2M协作系统中的中继选择

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摘要

The approximate average symbol error probability (ASEP) and outage probability (OP) of the multiple-mobile-relay-based mobile-to-mobile (M2M) cooperative systems with fixed-gain amplify-and-forward (FAF) relaying and relay selection over N-Nakagami fading channels is investigated in this paper. The cumulative density function (CDF) of the signal-to-noise ratio (SNR) is used to derive the exact ASEP expressions for various modulations. Exact closed-form expressions for OP are also presented. The power allocation problem is formulated for performance optimization. Then the ASEP and OP performance under different conditions is evaluated through numerical simulations to verify the analysis. The simulation results showed that the number of mobile relay nodes, the fading coefficient, the number of cascaded components, the relative geometrical gain, and the power-allocation parameter have an important influence on the ASEP and OP performance.
机译：具有固定增益放大转发（FAF）中继和中继选择的基于多移动中继的移动到移动（M2M）协作系统的近似平均符号错误概率（ASEP）和中断概率（OP）本文研究了N-Nakagami衰落信道上的情况。信噪比（SNR）的累积密度函数（CDF）用于得出各种调制的精确ASEP表达式。还提供了OP的精确闭式表达式。制定了功率分配问题以优化性能。然后通过数值模拟评估不同条件下的ASEP和OP性能，以验证分析结果。仿真结果表明，移动中继节点数，衰落系数，级联分量数，相对几何增益和功率分配参数对ASEP和OP性能有重要影响。

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