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中文摘要：
有吝啬的隧道获得的一个最佳的力量分配(OPA ) 方法为一个 multinode amplify-and-forward 合作社通讯系统被建议。由使用 M-PSK 调整，靠近形式的 symbol-error-rate (重量的单位) 明确的表达和相应上面的界限首先被导出。随后， OPA 方法被利用最小化 SER。有相等的功率分配(EPA ) 的建议 OPA 方法的 SER 的比较方法，两个方法的 SER，是近似最佳的性能，是的表演几乎一样什么时候中继，在来源附近。当继电器在在来源和目的地之间的中间附近或在目的地附近时， OPA 超过 EPA。建议 OPA 方法 relay-to-destination 仅仅取决于 source-to-relay 的吝啬的隧道获得的比率到那些。广泛的模拟被执行验证理论结果。
英文摘要：
An optimal power allocation （OPA） method with mean channel gains is proposed for a multinode amplify-and-forward cooperative communication system. By making use of M-PSK modulation, a closed-form symbol-error-rate （SER） formulation and corresponding upper bound are first derived. Subsequently the OPA method is utilized to minimize the SER. Comparison of the SER of the proposed OPA method with that of the equal power allocation （EPA） method, shows that the SER of both methods, which is approximately optimal performance, is almost the same when relays are near the source. OPA outperforms the EPA when the relays are near the middle between the source and destination or near the destination. The proposed OPA method depends only on the ratio of mean channel gains of the source-to-relay to those of the relay-to-destination. Extensive simulations are performed to validate the theoretical results.
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