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多跳协作中继网络的能量分配及路由算法

Keywords: 自组织网络,多跳中继系统,协作通信,能量效率,路由算法

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Abstract:

为了减少无线多跳网络的能量消耗,提出了一种协作路由算法.在传统非协作路由的基础上,通过译码-转发与放大-转发混合的协作中继方式减少路由长度.根据信道状态信息,推导了满足源节点和目的节点之间信道容量的前提下,节点所需的最小发射功率.结合功率分配,提出了基于路由最小功率的协作路由算法及实现方式.仿真实验结果表明,该能量分配方式和路由选择算法在保持低功耗的同时,降低了数据误码率,提高了节点的通信可靠性和能量利用率.

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