Quorum Based RP Selection Scheme for Mobile WSN Realtime Multicast

With the increasing demand for realtime multicast service in mobile wireless sensor networks (mWSN), it is needed to provide new Rendezvous Point (RP) Selection Schemes for mWSN. Due to the arbitrary node mobility in mWSN, where mobile nodes usually go beyond someone RP’s coverage, multicast algorithm requires not only end-to-end constrained latency, but also short RP-switch time and low routing cost to guarantee the uninterrupted real time data streaming. The paper proposes a quick looking-up RP scheme for multicast algorithm based on quorum system. Results obtained through simulations demonstrate that the algorithm reduces RP-switch time and average routing cost.