Cost Analysis of Mobility Management Entities of SINEMO

Seamless IP-diversity based NEtwork MObility (SINEMO) was proposed to address a number of drawbacks of the Network Mobility (NEMO) protocol for mobility management of a number of hosts moving together in a Local Area Network. Increasing number of mobile hosts results in higher level of signalling cost on the mobility agents in a mobility protocol. Previous works on cost analysis of mobility protocols have considered the cost on some of the mobility agents, but did not consider all possible costs for mobility management, resulting in incomplete cost estimation. In this paper, we have developed analytical models to estimate costs of mobility management as functions of network size, mobility rate, traffic rate and data volume for all the entities of SINEMO. Numerical results, comparing the cost between mobility entities of SINEMO and NEMO, reveal that SINEMO has higher efficiency and lower cost than NEMO. Our comprehensive cost model can be used as a framework for estimating total cost of key mobility management entities of different handover protocols, and can aid in decision making to choose the most efficient protocol for future all-IP mobile and wireless networks.