A SMOOTH HANDOFF SCHEME BASED ON MSCTP FOR SPEED-AWARE APPLICATION IN MOBILE IPV6

摘要

With the rapid development of wireless technologies and increasing communication need of people in ubiquitous environment, some handoff schemes and improvements were proposed by IETF in order to support mobility effectively. In addition, mobile Stream Control Transmission Protocol (mSCTP) proposed by IETF is a new transport protocol supporting mobility and with a built-in feature called Multi-homing has attracted much attention from the research communities. Multi-homing is convenient to introduce IP diversity in mobile computing situations. A seamless handoff mechanism called SIGMA based on mSCTP has better performance than Mobile IPv6 enhancements. However, in the situations that mobile host has faster moving speed; the network performance remains low. In this paper, we consider the communication need of people in situations with different moving speeds and propose a smooth handoff scheme based on mSCTP (SHSBM) for speed-aware application. Criteria for performance evaluation including the packets’ lost rate, throughput and handoff latency are compared with SIGMA and Mobile IPv6 enhancements.