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JCO
2006

Minimum power assignment in wireless ad hoc networks with spanner property

8 years 7 months ago
Minimum power assignment in wireless ad hoc networks with spanner property
Power assignment for wireless ad hoc networks is to assign a power for each wireless node such that the induced communication graph has some required properties. Recently research efforts have focused on finding the minimum power assignment to guarantee the connectivity or fault-tolerance of the network. In this paper, we study a new problem of finding the power assignment such that the induced communication graph is a spanner for the original communication graph when all nodes have the maximum power. Here, a spanner means that the length of the shortest path in the induced communication graph is at most a constant times of the length of the shortest path in the original communication graph. Polynomial time algorithm is given to minimize the maximum assigned power with spanner property. The algorithm also works for any other property that can be tested in polynomial time and is monotone. We then give a polynomial time approximation method to minimize the total transmission radius of al...
Yu Wang 0003, Xiang-Yang Li
Added 13 Dec 2010
Updated 13 Dec 2010
Type Journal
Year 2006
Where JCO
Authors Yu Wang 0003, Xiang-Yang Li
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