On the Broadcast Storm Problem in Ad hoc Wireless Networks

摘要: Routing protocols developed for ad hoc wireless networks use broadcast transmission to either discover a route or disseminate information. More specifically, reactive routing has flood the network with request (RREQ) message in order find an optimal destination. Several applications vehicular (VANET), which is subset of MANET, rely on propagate useful traffic information other vehicles located within certain geographical area. However, conventional mechanism may lead so-called storm problem. In this paper, we explore how serious problem both MANET and VANET by examining packets 2-dimensional open area straight road highway scenarios. addition, propose three novel distributed suppression techniques; i.e., weighted p-persistence, slotted 1-persistence, p- persistence schemes. Our simulation results show that proposed schemes can achieve up 90% reduction packet loss rate while keeping end-to-end delay at acceptable levels most applications. They also be used together discovery process guide select routes fewer hop counts.