摘要
为解决6LoWPAN(IPv6over Low power WPAN)设备与IPv6网络通信时的地址压缩问题,研究了6LoWPAN报头压缩方案,提出了一种基于短地址映射的改进压缩方案。6LoWPAN设备短地址由自身生成,IPv6网络节点短地址可由数据报中直接获取,避免了短地址注册、分配机制及地址冲突检测方法带来的开销,保证了短地址的唯一性。介绍了地址映射方法及地址映射表,详细阐述了设备处理流程及设计的路由地址通告和地址映射更新报文。性能分析表明,在传输负载较大,通信次数频繁的网络状况中,改进方案能有效减少报头开销,数据传输效率较6LoWPAN原方案有显著提高。
To solve the address compression problem in the communication between 6LoWPAN device and IPv6 network. 6LoWPAN header compression scheme is studied, and an improved scheme based on short address mapping is proposed. The short address of 6LoWPAN device and IPv6 nodes is generated by itself or from datagram. In this way, the overheads produced by short address registration and distribution mechanism and duplicate address detection method is avoided, and the uniqueness of address is guaranteed at the same time. the address mapping method and address mapping table are introduced, and then the de- vice procedure, routing address advertisement message and address mapping update message are described in details. At last, performance Analysis shows that, in the condition of large payload and frequent communication network, the improved scheme has an effective overheads reduction and significantly increases the data transmission efficiency compared with original 6LoWPAN scheme.
出处
《计算机工程与设计》
CSCD
北大核心
2014年第4期1161-1164,1171,共5页
Computer Engineering and Design
