摘要
为了实现无线传感器网络中大数据量的传输,增大传感器节点之间传输的吞吐量,结合协作通信中的能量与信道状态2个特性,设计了多中继的选择功率分配算法。该算法将信道系数最大的节点作为第1中继,然后通过分析剩余节点的信道系数和能量选择第2个中继,最后调节功率控制因子分配2个中继的发射功率得到多中继链路的最大吞吐量。仿真结果表明,在总功率相同情况下多中继的最大吞吐量高于单中继的吞吐量。
In order to realize the transmission of large amount of data in wireless sensor networks and increase the throughput of the transmission between sensor nodes,a multi-relay power allocation algorithm is designed based on the characteristics of energy and channel state in cooperative communication.This algorithm takes the node with the largest channel coefficient as the firs relay,then selects the second relay by analyzing the channel coefficient and energy of the remaining nodes,and finally adjusts the power control factor to allocate the transmitted power of the two relays to obtain the maximum throughput of the multi-relay link.Simulation results show that the maximum throughput of multiple relays is higher than that of single relays under the same total power.
作者
马占营
MA Zhanying(School of Information and Communication,Guilin University of Electronic Technology,Guilin 541004,China)
出处
《桂林电子科技大学学报》
2019年第3期202-205,共4页
Journal of Guilin University of Electronic Technology
基金
国家自然科学基金(61671165)
关键词
无线传感器网络
协作通信
中继选择
功率分配
wireless sensor network
cooperative communication
relay selection
power allocation
