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1 2004

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Self-adaptive MANET : a centralized approach

Basu S. S., Chaudhuri A.

Foundations of Computing and Decision Sciences

2004

Vol. 29, No. 4

271-286

In this paper we propose a centralized adaptive movement algorithm for mobile nodes in a MANET to maintain neighbourhood topology. A MANET (Mobile ad-hoc network) operates without a fixed infrastructure and is also mobile because of the nature of the applications they are proposed for. In our approach each node is enabled with a GPS receiver. A node in the network is identified as the leader in the beginning. Each node identifies their one hop neighbours before starting movement and broadcast the information to the leader. All nodes also transmit their position information obtained through GPS receiver to the leader in a predefined periodic interval. By analyzing the positions, the leader realizes the movement trend and neighbourhood breakage possibilities within the network and directs the nodes to control their movement to ensure the topology retention. The impact of this concept is the elimination of routing algorithm during message transfer between the nodes and thus increases in message transfer rate.