基于信标帧的6LoWPAN无线传感器网络构建机制

Construction Mechanism of 6LoWPAN Wireless Sensor Network Based on Beacon Frame

使用IEEE 802.15.4设备时需要一种开放的网络层标准以实现互连互通。为此,通过分析IEEE 802.15.4的特性和IPv6协议,选择IPv6作为IEEE 802.15.4网络层标准,建立基于6LoWPAN的无线传感器网络体系结构,并提出基于信标帧的6LoWPAN无线传感器网络构建机制。该构建机制包括地址配置、网内路由算法和网间路由算法。当网间路由时,节点从应用层发送数据到关联节点,关联节点通过适配层的分片重组对传输的数据包进行精简,并将其以数据帧的方式在网络传输,到达目的节点时进行解封装后还原所需数据包。仿真结果表明,相比LOAD机制,该机制能够减少网络构建开销。

Using IEEE 802.15.4 devices need an open network layer standard to achieve interconnection.By analyzing the characteristics of IEEE 802.15.4 and IPv6 protocol,IPv6 is selected as the IEEE 802.15.4 network layer standard,and the architecture of wireless sensor network based on 6LoWPAN is established.Based on this,the construction mechanism of 6LoWPAN Wireless Sensor Network(6LoWPAN WSN)based on beacon frame is proposed.The construction mechanism includes address configuration,intra-network routing algorithm and inter-network routing algorithm.When routing between networks,the nodes send data from the application layer to the associated nodes,and associated nodes can simplify the data packets transmitted by piecewise reorganization of the adaptation layer,and transmit the data packets in the network in the way of data frames,unencapsulate when they arrive at the destination node,and restore the required data packets.Simulation results show that compared with LOAD mechanism,the mechanism can reduce the network construction overhead,shorten the delay of routing and reduce the energy consumption.