Investigation on Handoff Performance of Mobility Support Protocols

Abstract

Handoff is an important research topic of mobility support protocols. It has great effects on the performance and quality-of-service of mobile networks. Based on appropriate network model and handoff model, the handoff performance of various mobility support protocols is deeply studied and compared through theoretical analysis and numerical simulation. The comparisons are made between mobile IP and micro-mobility protocol, and between different micro-mobility protocols. The results show that wireless network parameters and route update algorithms of mobility support protocols affect the handoff performance. The handoff performance when applying micro-mobility protocols is better than when only using Mobile IP. In all micro-mobility protocols, the route update algorithm of MIP-RR and MMP has the optimal performance.

Research on Handoff Delay and Mobility Management Cost of Mobility Protocols in Wireless Sensor Networks

“…The wireless access network is constituted by several administration domains [13]. And every administration domain is connected to the Internet through GW (Gateway).…”

“…Set the probability of the need of sending update packets and refresh packets to update and refresh the route as , the size of route update packet as RU , descending packet rate as V, and path information timeout time and refresh cycle ratio as . The literature [13] calculated the best refresh cycle as follows:…”

“…Handoff is the most basic operation of the mobile network and the most important content of mobility support protocol research. The handoff performance has a crucial impact on the performance of the mobile network [10][11][12][13]. Network layer handoff delay is the most important indicator to measure mobility support protocols, and other handoff performance indicators, for example, packet loss and application throughput decline when making handoff, are all relate to handoff delay.…”