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A New Constant Factor Approximation for Computing 3-Connected m-Dominating Sets in Homogeneous Wireless Networks

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5 Author(s)
Donghyun Kim ; Dept. of Comput. Sci., Univ. of Texas at Dallas, Richardson, TX, USA ; Wei Wang ; Xianyue Li ; Zhao Zhang
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In this paper, we study the problem of constructing quality fault-tolerant Connected Dominating Sets (CDSs)in homogeneous wireless networks, which can be defined as minimum k-Connected m-Dominating Set ((k,m)-CDS) problem in Unit Disk Graphs (UDGs). We found that every existing approximation algorithm for this problem is incomplete for k ¿3 in a sense that it does not generate a feasible solution in some UDGs. Based on these observations, we propose a new polynomial time approximation algorithm for computing (3,m)-CDSs. We also show that our algorithm is correct and its approximation ratio is a constant.

Published in:

INFOCOM, 2010 Proceedings IEEE

Date of Conference:

14-19 March 2010