卫星网络移动性管理协议S-MIPv6

• 作 者: 窦志斌
• 机 构: 中国电子科技集团公司第五十四研究所,河北 石家庄,050081
• 出 处: 无线电工程
• 发表日期: 2015年10期
• 关键词: satellite communications mobility management mobile subnetwork space-based netwo

天基网络要求卫星具有跨波束、 跨卫星的移动性管理功能, 而传统地面网络中的移动性管理协议MIPv4和MIPv6都无法同时支持单节点和子网的移动性. 针对以上问题提出了一种基于IPv6的同时支持单节点和移动子网的移动性管理协议—S-MIPv6, 该协议充分吸收了MIPv6、 NEMO和PMIPv6协议的优点, 采用基于网络的移动性管理架构, 并根据卫星空间组网的特点优化了信令流程, 降低了链路通信开销. 同时对S-MIPv6协议的入网、 域内和域间切换开销给出了理论分析, 为后续S-MIPv6协议的实现和完善奠定了基础.“,”In the space-based network,the satellites are required to have the capability of inter-beam and inter-satellite mobility management functions, and in the traditional ground-based network, the mobility management protocols ( i. e. MIPv4, MIPv6 ) are incapable to support simultaneously the mobility of nodes and networks.Based on this problem,this paper puts forward an IPv6-based mobility management protocol(S-MIPv6).S-MIPv6 adopts the design principles of MIPv6,NEMO and PMIPv6,and optimizes the signa-ling flow based on satellite networking characteristics for radio-link communication overhead reduction. The theoretical analysis is performed for the overhead of three core S-MIPv6 procedures:initial network access,intra-domain handover and inter-domain handover, which provides the guideline for the implementation and improvement of S-MIPv6.