Efficient Management of Fast Handoff in Wireless Network Mobility (NEMO)

Abstract

Fast handoff in network mobility (NEMO) is very crucial for providing uninterrupted Internet services to the users in quickly moving vehicles. However, the NEMO basic support (NBS) protocol takes comparatively long time to complete the handoff process resulting in large number of packet drops. In this paper, we propose fast NEMO (FNEMO) to reduce the handoff latency and packet losses experienced in NBS protocol. FNEMO brings in the concept of IP pre-fetching and advanceregistration to acquire care-of-address for the anticipated future cells. Numerical analysis shows that FNEMO can support higher vehicle speed than that in fast MIPv6 (FMIPv6) and still has significantly low signaling overhead.