నైరూప్య

Delay Reduction Technique for Dynamic MANET On-demand Routing Protocol

Azad Sharma, R.D. Joshi

Mobile Ad-hoc Network (MANET) is a network whose characteristics include absence of any kind of infrastructure, dynamic topology and limited resources. It consists of a set of wireless mobile nodes communicating with each other without any centralized control in order to communicate it requires multi hop routing. Routing in mobile ad-hoc networks is a key issue which decides network performance. Dynamic MANET On-demand Routing (DYMO) is a reactive protocol that suffers by significant delay variation. This paper proposes a Reduced Delay Dynamic MANET On-demand Routing protocol (RD-DYMO) with faster route discovery then established protocol. Additionally in order to reduce delay variation, short path selection mechanism is suggested which select route with minimum number of hop counts. The QualNet simulator is used to compare performances of both protocols. Simulation results are observed for wireless network scenarios with variation of node mobility, pause time, network area and packet sent rate. The results show the end to end delay in mobile scenarios decrease significantly, without much affecting the other QoS parameters. In addition proposed protocol improved packet delivery.