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QoS by Multiple Cluster Head Gateway Approach in Mobile Ad Hoc Network

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3 Author(s)
Anzar, A. ; Electron. & Commun., Graphic Era Univ., Dehradun, India ; Shahnwaz, H. ; Gupta, S.C.

Mobile Ad Hoc Network consists of dynamic topology as nodes in the network are mobile, and connected wirelessly. Nodes communicate outside the cluster through a centralized node that is called a Cluster Head Gateway (CHG) [1]. MANET is a dynamic multi-hop network, which is established by a group of mobile nodes on a shared wireless channel. The shared medium and the multi-hop nature of the wireless ad hoc networks pose fundamental challenges to the design of an effective resource allocation algorithm to maximize the aggregated utility of flows, maintaining basic fairness among the multiple flows. An elected Cluster Head Gateway (CHG) is assigned for communication with all other clusters. The centralized Cluster Head Gateway can become a bottleneck and possibly cause a lower efficiency for the clustering system. In this paper we propose a mechanism in which communication outside the cluster is distributed through separate Cluster Head Gateways. We will discuss how the overall averaged efficiency for the clustering system increases considerably. We also show that the increase in overall averaged efficiency is by the increase/add Cluster Head Gateways. Additionally, the routing reliability to outside the cluster is increased since routes to different clusters use distinct Cluster Head Gateways.

Published in:

Cyber-Enabled Distributed Computing and Knowledge Discovery (CyberC), 2011 International Conference on

Date of Conference:

10-12 Oct. 2011