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Performance evaluation of different routing protocols to minimize congestion in heterogeneous network

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2 Author(s)
Santhi, S. ; Dept. of CSE, PSG Coll. of Technol., Coimbatore, India ; Sadasivam, G.S.

In this paper, we have implemented Multipath routing algorithms for heterogeneous network. Multipath routing separates the traffic among different paths to minimize congestion in terms of multiple alternative paths through a network which can provide a variety of benefits such as minimize delay and congestion, maximize bandwidth, or improved security. We propose a newly improved QoS multipath routing algorithm for heterogeneous networks. Different types of adhoc routing protocols are discussed in this paper such as Ad-Hoc On-Demand Distance Vector (AODV), Ad-Hoc On Demand Multipath Distance Vector (AOMDV), QoS Ad-Hoc On Demand Multipath Distance Vector (QAOMDV), AOMDV is the extension of AODV routing protocol. QAOMDV is QoS version of AOMDV. These routing protocol are used in wireless network which is designed to form multiple routes from source to the destination and also avoid the loop formation so that it reduces congestion in the channel. The performance of AODV, AOMDV, QAOMDV protocols are compared and proved the new routing protocol is better than others. The NS2 simulation result shows that improved performance of the heterogeneous network for newly proposed multipath routing protocol. The QAOMDV works better than other protocols in terms of delay, bandwidth, load balance, routing overhead and packet delivery ratio have been considered by varying the traffic load in the network.

Published in:

Recent Trends in Information Technology (ICRTIT), 2011 International Conference on

Date of Conference:

3-5 June 2011