Analysis of MIH assisted Layer 3 Mobility Protocol (L3MP)

Abstract

Vertical Hando is becoming more and more important area of research in recent years. The demand for high data rates and high capacity wireless Internet access from mobile users has led to the integration of third and fourth generation networks with the legacy technologies using MIPv6 as a mobility service. In order to provide high QoS for the majority of the multimedia applications, MIPv6 is further assisted by MIH during vertical handover process for seamless connectivity. However, MIH assisted MIPv6 does not ful ll the QoS requirement of these applications owing to the fact that these standards do not negotiate in the occurrence of any congestion event, such as high packet loss etc. The main focus of this thesis is to evaluate and improve the performance of MIH assisted MIPv6 to accomplish the QoS requirements for most of the multimedia applications, by initiating MAC layer triggers, during the vertical handover process. First we develop a simulation model that runs MIH on top of the MIPv6 to enable the exchange of triggers and to achieve e cient mobility services. We then carry out a comprehensive analysis to determine the thresholds of QoS requirements for the multimedia applications to appropriately commence the triggers so that to facilitate the end subscribers timely negotiate their connections. Our study reveals that, compared to the basic MIH assisted MIPv6, the proposed mechanism achieves better QoS requirements for the multimedia applications in terms of packet loss, delay, jitter etc. during the handover process. We show that the proposed mechanism reduces the handover delay by 19% and achieves better performance.