Route optimization scheme and performance analysis of nested network mobility

According to network mobility (NEMO) specification proposed by IETF, the problems of sub-optimal routing and multiple encapsulations exist in nested mobile network, which will affect the performance of packet delivery efficiency. To solve this problem, a hierarchical based route optimization scheme (HRO) is proposed in this paper based on Hierarchical MIPv6 (HMIPv6), the location management of mobile network nodes (MNN) was introduced; the routing path to transmits packets using MAP domain was optimized. Analysis models for route assessment, transmissions cost and delivery efficiency were also proposed, respectively. Analysis results indicated that the delivery efficiency is increased obviously, and network resources are utilized more effectively.