New approach to eliminate the latency in handoff schema for mobile node

Abstract

An important and challenging issue in the next-generation wireless systems (NGWS) is to support seamless handoff while moving between different integrated networks. This paper presents a location aided fast handoff protocol which is an improvement over the pre-registration low latency handoff proposed by the IETF. Pre-registration requires layer 2 information that might not be present in the access technology being used. By processing geographical data information acquired through GPS related to mobile node movement and the coverage area of each foreign agent intelligent handoff decisions can be made, allowing more control over the actual handoff latency and buffering requirements. Key words: Mobile IP, seamless handoff, fast-handoff (low latency handoff), location information, GPS.