Abstract: To solve the common problems of single point of failure and performance bottleneck in mobile routers of the mobile network,this paper analyzed the inability of most existing multihoming schemes to achieve optimal route selection in the multi-interface hybrid multihoming scenario and proposed MM-NEMO,a multihoming method that can be applied in the hybrid multihoming scenario.By defining major common attributes of external interfaces on the mobile router and their maintenance methods and by dynamically exchanging interface attributes between mobile routers using the multicast technology,MM-NEMO enables the mobile routers to maintain the attributes of all external interfaces in the mobile network.Then,the communication initiated by internal nodes uses the comentropy-based multiple attribute decision making (MADM) algorithm to perform the selection,assigning and redirection of the optimal interface.Characteristic analysis indicates that MM-NEMO provides internal nodes in the mobile network with a transparent mechanism for optimal route selection in the hybrid multihoming scenario.Simulation results show that MM-NEMO features low end-to-end delay and high overall throughput.

Key words: Network mobility(NEMO),Mobile router,Multihoming,Interface selection