一种改进的下一代无线通信网络移动切换方案

An Improved Handoff Mechanism for Next Generation Wireless Network

针对移动IPv6和HIP的移动性管理方案在双方同时移动时无法实现无缝切换的不足,提出了一种改进的无缝切换方案SH-HIP。该方案利用RVS服务器作为锚点,维持主机标识与当前IP地址的映射关系,并且转发更新数据包,有效地解决双方同时移动时连接丢失的问题.仿真结果表明,该方案不仅在双方同时移动时可大大减小切换延时和丢包率,而且保持了HIP的安全性,能有效抵御拒绝服务攻击以及中间人攻击.

Since the MIPv6 and HIP mobility management scheme can not handle the case when both hosts move simultaneously, this paper proposed an improved seamless handoff management called SH-HIP, based on the study on handoff performance of MIPv6 and HIP. By making use of RVS server as an anchor, which maintains the mapping of ID-LOCATOR for the host and relays the UPDATE packet as well, each host can still obtain the new address of its peer. In this way, connection loss is avoided. The simulation results show that this scheme can reduce handoff latency and packet loss significantly. Meanwhile, the security features of HIP, such as the resistance to DoS and MitM attacks are preserved.