【摘要】 针对卫星网络中的卫星节点传输资源与能量供应受限的特点,提出了一种基于时变图的节能资源分配算法。时变图能将卫星网络中时变的拓扑与资源从时间与空间两个维度表示,算法通过在时变图中迭代寻找最小能耗路径,最终得到一种可使网络能耗减少且不以减小网络吞吐量为代价的传输资源分配方案。仿真结果表明,此算法在不同网络中都降低了传输能耗且不减小网络的吞吐量。更多还原

【Abstract】 In view of the limited transmission resources and energy supply of satellite nodes in satellite networks, an energysaving resource allocation algorithm based on time-varying graph is proposed. The time-varying graph depicts the time-varying topology and resources of the satellite network in temporal-and spatial-dimensions. The algorithm iteratively seeks the path of the minimum energy consumption in the time-varying graph and eventually obtains a transmission resource allocation scheme that can reduce the network energy consumption without reducing the network throughput. Simulation results show that the proposed algorithm reduces transmission energy consumption without reducing the network throughput in different networks.更多还原