A Cross Layer Seamless Handover Scheme in IEEE 802.11p Based Vehicular Networks

Abstract

In this paper, we propose a seamless handover scheme for Network Mobility (NEMO) in vehicular scenario assisted by IEEE 802.11p based ad hoc communications among vehicles. The proposed scheme reduces handover latency and minimizes packet loss during handover by utilizing cross layer information available from other vehicles in the ad hoc manner. The role of neighboring vehicles assistance to the handover vehicle is twofold. First is to get the router advertisement of the next access point in advance to actual handover, resulting in considerable reduction in handover latency. Second is to receive packets destined for handover vehicle, thus minimizing packet loss during handover period. The extensive simulation study reveals that the proposed handover scheme provides seamless network mobility handover in vehicular communication scenario.