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Outage Analysis and Power Allocation in Space-time Cooperation Systems
Pages: 188-191,217
Year: Issue:  23
Journal: Video Engineering

Keyword:  space-time cooperativeselection relaying protocoloutage probabilitypower allocation;
Abstract: 提出了选择中继协议下最小化系统中断概率的最优功率分配方案,并给出了最佳功率分配的闭式解.根据协作节点间是否存在交互信息,分别通过对系统中断概率的分析,推出了高信噪比下中断概率的理论界.基于理论界,在功率受限的情况下,通过拉格朗日乘数法,得到最优功率分配的闭合解.仿真结果表明,所推理论界在高信噪比下与仿真值近似相等,最优功率分配点的系统性能也要优于其他功率分配点.
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