Dynamic Quality of Service Stability based multicast routing for MANET

Abstract

Stable routing is a critical factor in mobile ad hoc network due to the lack of stable infrastructure. The
MANETs node mobility nature always needs to rediscovery new paths to organize a routing. In order to enhance the
Quality of Service and routing stability in MANET, in this paper we propose Dynamic Quality of Service Stability based
multicast routing protocol (DQSMRP) by modifying the Cuckoo Search Algorithm (CSA) with the new position updating
mechanism. This updating mechanism is derived from the differential evolution (DE) algorithm, where the candidates
learn from diversified search regions. Each node in the network periodically estimates the parameters, i.e., node and link
stability factor, bandwidth availability, and delays. In the next step neighbour stability and QoS database at every node
are created using estimated parameters. Finally a multicast path is constructed by using route request and route reply
packets. The QoS and stability information, i.e., link/node stability factor, bandwidth and delays in route are stored in the
information cache of nodes, and are used for performing route maintenance in case of node mobility and route failures.