【摘要】 能量捕获网络是解决无线网络能量问题的有效技术.在能量捕获网络中如何根据节点的能量捕获情况选择合适的中继节点是一个非常重要的问题.本文提出一种双缓存队列的能量捕获网络中继节点选择策略,将数据包到达源节点以及数据包从源节点到达中继节点设计成两个排队模型,通过分析源节点和中继节点中数据包的平均时延选择合适的中继节点进行数据包的转发.本文还给出了系统中数据包的状态转移平衡方程,求出了稳态时的数据包状态概率,从而得到数据包在系统中的平均时延.最后给出了完整的中继节点选择算法.数值模拟验证了本策略的有效性.更多还原

【Abstract】 Energy harvesting netw ork is an effective technology to solve the energy problem of w ireless netw orks. How to select a suitable relay node according to the energy harvesting situation of the nodes in the energy harvesting netw orks is a very important issue.A double-buffer queue energy relay netw orks node selection strategy is proposed in this paper. The data packet arrives at the source node and the data packet arrives at the relay node into tw o queuing models. By analyzing the average delay of the data packets in the source node and the relay node,a suitable relay node is selected for data packet forw arding. This paper also gives the state transition equilibrium equation of the data packet in the system,and obtains the state probability of the data packet in the steady state,so as to obtain the average delay of the data packet in the system. Finally,a complete relay node selection algorithm is given. Numerical simulations verify the effectiveness of this strategy.更多还原