本文介绍了一种在保证网络QOS需求（传输率）的前提下，对节点进行动态能量分配的中继选择算法。通过这种能量分配，减少了总的能量消耗，可以延长整个网络的生命周期。-For a given quality of service (QoS) requirement such as transmission rate between the source and the destination, relay nodes have an adaptive power control scheme