Comparative Analysis of T-QoMIFA and HMRSVP

Abstract

An important challenge for All-IP wireless networks is the development of solutions that jointly provide QoS and mobility. Several approaches have been proposed to support a fast handoff simultaneously with a fast re-reservation of resources. These approaches however do not match the real-time requirements. Transparent QoS-aware mobile IP fast authentication protocol (T-QoMIFA) is proposed to satisfy the requirements of delay sensitive applications. T-QoMIFA integrates ReSource reserVation Protocol (RSVP) with MIFA through introducing a new RSVP object called "mobility object" used to carry the mobility Information. In this paper we present an analytical model to evaluate the performance of T-QoMIFA compared to Hierarchical Mobile RSVP (HMRSVP) with respect to the sum of handoff latency and reservation time, the expected number of dropped packets and the expected number of the best-effort packets sent while reservation is in progress. Movement patterns and dropping of control messages are taken into account in our analysis. Our study shows that T-QoMIFA clearly outperforms HMRSVP. T-QoMIFA achieves a fast handoff and a fast re-reservation of resources. The dropped and the best-effort packets are minimized using T-QoMIFA. Therefore, T-QoMIFA is an efficient protocol even if control messages have been dropped.