Multi-Radio Multi-Channel无线传感器网络中信道分配和路由策略

针对无线传感器网络中传输时延长、传输冲突大和吞吐量低等问题,提出了一种在Multi-Radio Multi-Channel无线传感器网络中信道分配和路由策略.该策略动态地建立k元n立方体拓扑结构,使用优化的静态信道分配算法提高节点的吞吐量,使用维序寻径的路由算法减少传输冲突.该方法适用于网络节点稠密、节点相互之间通信冲突大的情况,并且在单跳和多跳的网络环境下均适用.实验结果表明,基于k元n立方体这一拓扑结构的信道分配和路由策略与传统方法相比,有效地减少了端到端时延,降低了网络冲突,减少了节点能量消耗,延长了网络寿命,提高了网络吞吐量.

Channel Allocation and Routing Strategy in Multi-Radio Multi-Channel Wireless Sensor Networks

To address the problems of transmission delay, transmission conflicts and low throughput in Wireless sensor networks, this paper proposes a channel allocation and routing strategy in Multi-Radio Multi-Channel Networks. The strategy is to dynamically establish a k-ary n-cube topology. It not only uses the optimal static channel allocation algorithm to improve the throughput of nodes but also employs the dimension order routing algorithm to reduce transmission conflicts. This method is suitable for the network of density nodes with many communication conflicts. It can also be used in both single hop and multi hop network environment. The experiment results show that compared with traditional methods, the channel allocation and routing strategy based on the k-ary n-cube topology can effectively reduce end to end delay, network conflicts and energy consumption, prolong the network lifetime and increase the throughput of network.