Therefore, there is great practical significance on optimal power allocation between source and relay nodes.

因此，对信源和中继节点之间的功率优化分配有着极其重要的现实意义。

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In this paper, we investigate two aspects of resource allocation: optimal power allocation and partner selection.

本文主要研究资源分配的两个方面：功率优化分配和合作伙伴选择。

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And combined with the near optimal power allocation, the proposed scheme further reduced the symbol error probability.

并结合次优功率分配，进一步降低系统的误码率。

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