6LoWPAN网络组播通信方案的研究与设计

随着无线传感器网络(WSN)对新应用的需求不断增加,基于IEEE 802.15.4实现IPv6通信的低速无线个人局域网标准6LoWPAN是将WSN接入Internet实现全IP通信的理想解决方案.在此提出了一种基于6LoWPAN网络的组播通信方案,通过自组建M AC地址的方式,对现有的6LoWPAN网络增加了对组播通信的支持,设计完成了6LoWPAN网络组播通信方案,降低了组播通信下组内节点接收网关数据的时延,以及组外节点对无关数据的处理消耗.结果分析表明,该组播通信方案下的节点通信时延是单播通信下节点通信时延的15.13％,组外节点数据处理效率比广播通信下的组外节点提高了39.02％.该通信方案能够获得预期功能和性能,6LoWPAN节点能够动态加入和退出组播组,接收组播组内信息.

Research and design of 6LoWPAN network multicast communication scheme

With the increasing demand for new applications in wireless sensor networks (WSN), the low-speed wireless personal area network standard 6LoWPAN, which implements IPv6 communication based on IEEE 802.15.4, is an ideal solution for connecting WSN to the Internet for full IP communication. This paper proposes a multicast communication scheme based on 6LoWPAN network, which adds support for multicast communication to the existing 6LoWPAN network by self-organizing MAC address. The 6LoWPAN network multicast communication scheme is designed. It reduces the delay of receiving gateway data by the nodes in the group and the processing consumption of irrelevant data by the nodes outside the group. The results show that the node delay under the multicast communication scheme is 15.13% of that under unicast communication, and the data processing efficiency of out-of-group nodes is 39.02% higher than that of out-of-group nodes under broadcast communication. This communication scheme can obtain the expected function and performance, and the 6LoWPAN node can join and exit the multicast group dynamically and receive information within the multicast group.