The full text of this article:

On constructing low interference topology in multihop wireless sensor networks
by Kun-Da Wu, Wanjiun Liao
International Journal of Sensor Networks (IJSNET), Vol. 2, No. 5/6, 2007
Abstract: In this paper, we study interference-efficient topology control for wireless sensor networks. A node is said to be interfered by communication link if it can receive a transmission transmissions which are not intended for it. We account for the number of communication links contributing interference to each node in the generated topology, and define such a number as the interference load of a node the maximum interference load among all node is then defined as the network interference load. The objective of the problem is find a connected topology which results in lower network interference load. We prove that this problem is NP hard and then. Our objective is to find a connected topology with lower interference load. We prove that finding a topology with minimum interference load is NP-hard and propose a heuristic algorithm, called Low Interference-Load Topology (LILT), to find a polynomial time solution to this problem. Simulation results show that LILT can significantly reduce the interference load in the resulting topology while not increasing the total interference load and the transmission range of each node.

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