Minimizing Interference in Ad-Hoc Networks with Bounded Communication Radius
We consider a topology control problem in which we are given a set of n sensors in ℝ d and we would like to assign a communication radius to each of them. The radii assignment must generate a strongly connected network and have low receiver-based interference (defined as the largest in-degree of the network). We give an algorithm that generates a network with O(logΔ) interference, where Δ is the interference of a uniform-radius network. Since the radius of each sensor only depends on its neighbors, it can be computed in a distributed fashion. Moreover, this construction will never assign communication radius larger than R min to a sensor, where R min is the minimum value needed to obtain strong connectivity. We also show that Ω(logn) interference is needed for some instances, making our algorithms asymptotically optimal.
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- 4.Buchin, K.: Minimizing the maximum interference is hard. CoRR, abs/0802.2134 (2008)Google Scholar
- 5.Clarkson, K.L.: Fast algorithms for the all nearest neighbors problem. In: Proceedings of the 24th Annual Symposium on Foundations of Computer Science, pp. 226–232. IEEE Computer Society, Washington, DC (1983)Google Scholar
- 6.Fussen, M., Wattenhofer, R., Zollinger, A.: Interference arises at the receiver. In: In Proceedings of Int. Conference on Wireless Networks, Communications, and Mobile Computing, WIRELESSCOM (2005)Google Scholar
- 8.Korman, M.: Minimizing interference in ad-hoc networks with bounded communication radius. CoRR, abs/1102.2785 (2011)Google Scholar