Multi-path adaptive dynamic resource reservation routing protocol for ad hoc networks
Lin Na Wei · Ha'erbin gongye daxue xuebao · 2009
Within multimedia environment,there are two problems on Quality-of-Service(QoS) of routing in mobile ad hoc networks.One is routing maintaining issue,and the other is that congestion will take place in QoS routing as traffic changing with applications arising.This paper proposes a multi-path adaptive dynamic resource reservation routing protocol(MDRSVP) for the two problems.It employs a multi-path routing topology with serial and parallel routing structure to solve failure routing and dynamic traffic.Firstly,MDRSVP can start a new serial routing to continue transmitting data as original primary routing fails.This approach does not interrupt a routing from source node to destination node during transmission.Secondly,MDRSVP reduces QoS bandwidth for each parallel routing,but the total of bandwidth in all parallel routings is QoS bandwidth required by application,so as to decrease the congestion in a single QoS routing and increase probability of other paths utilized.In addition,MDRSVP allocates flow to a few applications through calculating the bottle-neck bandwidth of upstream and downstream which adapts dynamic traffic in QoS routing as the bandwidth of MDRSVP routing.Simulation shows that MDRSVP can increase tolerance of QoS routing,decrease congestion of routing,and increase scalability of QoS network.