Adaptive QoS Multicast Routing with Mobility Prediction in MANETs
G. Santhi, Alamelu Nachiappan · International Journal of Ad hoc Sensor & Ubiquitous Computing · 2010
A Mobile Ad hoc NETwork (MANET) is a collection of wireless mobile hosts that form a temporary network without a centralized administration or wired infrastructure. Due to the high mobility of nodes, the network topology of MANETs changes very fast, making it more difficult to find the routes that message packets use. Network control with Quality of Service (QoS) support is a key issue for multimedia applications in MANET. Most of the real time applications have stringent requirements on bandwidth, delay, delay-jitter, packet loss ratio, cost and other QoS metrics. This paper proposes a Multi-constrained QoS routing with mobility prediction protocol. If the node has enough resources to transmit data packets, it uses the Global Positioning System (GPS) to get the location information of the mobile nodes and selects the routing path with the maximum Route Expiration Time (RET). A set of static and mobile agents are used to find the multicast routes and transmit the packets. Extensive simulations have been conducted to evaluate the performance of MC_MAODV using Network Simulator (NS-2). The simulation results show that the proposed protocol achieves good performance in terms of improving packet delivery ratio and minimizing end-to-end delay. KEYWORDS: MANETs, Multi-constrained routing multicasting, clusters, end-to-end delay, packet loss ratio.