Abstract: MANET is a communication medium in daily human life and applications areas of MANET are growing rapidly. Congestion control and security are major tasks in MANET. Congestion occurs when the source sends more packets than the destination can handle Congestion control works very well in TCP over internet. But due to dynamic topology congestion control is a challenging task in mobile ad hoc network. Many approaches have been proposed for congestion control in MANET. In this paper, we propose the solution for the problem of large rate of packet drop and long and unfair end-to-end delays occurring in large networks while using the existing flow count mechanism for congestion control. We make use of a queue status signal to the sender, to change its sending rate accordingly. Network behavior has been simulated using NS2.32,with AODV as routing protocol and performance has been measured on parameters such as number of dropped packets, packet delivery ratio and end-to-end delay. The outcome is then compared with proactive protocol (DSDV).
Keywords: Mobile Ad-hoc Network (MANET), Dynamic Source Routing (DSR), Ad hoc On-Demand Distance Vector (AODV), Destination Sequence Distance Vector (DSDV).
Title: Flow Count Based Congestion Control Mechanism in Mobile Ad Hoc Network
Author: Steffi George, Ashish Chaurasia
International Journal of Computer Science and Information Technology Research
ISSN 2348-1196 (print), ISSN 2348-120X (online)
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