Quality of Service aware Dynamic Source Routing Protocol in Ad hoc Networks: Proposal, Analysis and Comparison

Abstract

A Mobile Ad hoc Network (MANET) is a self-configured, infrastructure less network. Due to mobility of nodes routing is a very critical issue in MANETs. Finding and selecting an optimal and reliable path that can exist as long as possible is a complex task. Dynamic Source Routing (DSR) protocol is an on demand or reactive, source driven routing protocol. By implementing Dynamic Source Routing, we can design a self configured, infrastructure less multi hop wireless ad hoc network which has dynamic topology with mobile nodes. DSR has low overheads and require less convergence time if an existing route is failed. In DSR protocol periodic routing updates or route advertisement are not disseminated by a node to its neighbors and DSR does not perform link status sensing, these features make DSR a protocol with less overhead. Basic model of Ad hoc network depends on Best Effort delivery and not provide any guarantee of Quality of Service constraints like minimum bandwidth requirement and maximum allowable delay. Basic frame work of DSR also does not support Quality of Service constraints. In this research paper we will propose a QoS aware DSR and we will analysis and compare our proposed QoS-DSR protocol with traditional Dynamic Source Routing protocol.