【摘要】 通过仿真与Zigbee硬件实验研究了角度与距离对无线传感器网络角度协作路由协议中继节点选择的影响;通过仿真分析中继节点的角度与距离两个因素对随机转发角度协作路由协议的目的节点中断概率的影响;通过RSSI测距实验间接测量源节点与目的节点之间的距离,并采用高斯模型处理测量数据,得到在不同角度及距离的中继节点条件下源节点与目的节点距离的测量相对误差。对Zigbee硬件实验与仿真结果的分析表明,无线传感器网络角度协作路由最佳中继节点的选择取决于侦听节点与源节点的角度及距离。更多还原

【Abstract】 The impact of angle and distance on relay selection in angle cooperation routing protocols of wireless sensor networks is considered through simulation and a serial of Zigbee experiments.The interruption probability of the angle random forwarding cooperative routing protocol under relay nodes with various angles and distances is firstly simulated.The distance between a source node and a destination node,which is measured based on the principle of RSSI ranging and relay nodes deployed with various angles and distances,is indirectly obtained with the consideration of the Gaussian model.The analysis of the comparison between simulation and experimental results demonstrates that both angles and distances of overhearing nodes have an impact on selection for best relay nodes.更多还原