通信网络稀疏多径信道冗余节点动态调度仿真  

Simulation of Redundant Node Dynamic Scheduling in Sparse Multipath Channels

作　　者：李振汕 李华兵[2] LI Zhen-shan;LI Hua-bing(Guangxi Police Academy,Nanning Guangxi 530200,China;Guilin University of Electronic Technology,Guilin Guangxi 541004,China)

机构地区：[1]广西警察学院,广西南宁530200 [2]桂林电子科技大学,广西桂林541004

出　　处：《计算机仿真》2020年第7期328-332,共5页Computer Simulation

摘　　要：由于通信网络稀疏多径信道下节点能量受限及大量冗余节点被覆盖,常用节点动态调度会使部分外围节点被忽视,导致通信网络覆盖率下降,因此提出通信网络稀疏多径信道的冗余节点动态调度方法。建立稀疏多径信道方阵,获取信道的增益向量,构建通信网络稀疏多径信道模型;在该模型基础上,获得网络覆盖率,确定冗余节点和正常节点覆盖范围;引入覆盖冗余鉴别模块,通过休眠动态调度算法,完成冗余节点动态调度。经过仿真发现,上述方法不仅能减少网络能量消耗,还能使通信网络覆盖率得到保证,网络能耗均衡,避免了多节点同步休眠和覆盖漏洞的情况,提高了节点调度效率。Because the node energy is limited and many redundant nodes are covered in sparse multi-path channel of communication network,some peripheral nodes will be ignored,leading to the decrease of communication network coverage rate.Therefore,a dynamic scheduling method of redundant nodes in sparse multi-path channel of communication network was proposed.The matrix of sparse multi-path channels was established to obtain the gain vector,and then the sparse multi-path channel model of communication network was constructed.Based on this model,the network coverage was obtained and the coverage range of redundant nodes and normal nodes was determined.In addition,the coverage redundancy authentication module was introduced.Finally,the dynamic scheduling of redundant nodes was completed through sleep dynamic scheduling algorithm.Through the simulation,we can see that the proposed method can reduce the energy consumption of network and ensure the coverage rate of communication network.In addition,the balanced energy consumption of network avoids the multi-node synchronous dormancy and coverage hole.Thus,the efficiency of node scheduling efficiency can be improved.

关 键 词：稀疏多径信道 冗余节点 动态调度 网络覆盖率 

分 类 号：TP929[自动化与计算机技术]