Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/826
Title: Approximation algorithms design for disk partial covering problem
Authors: Xiao, Bin
Cao, Jiannong
Zhuge, Qingfeng
He, Yi
Sha, Edwin H.-M.
Subjects: Algorithms
Approximation theory
Computational complexity
Constraint theory
Polynomials
Problem solving
Quality of service
Real time systems
Topology
Wireless telecommunication systems
Issue Date: 2004
Publisher: IEEE Computer Society
Source: ISPAN 2004 : 7th International Symposium on Parallel Architectures, Algorithms and Networks : 10-12 May 2004, Hong Kong, SAR, China, p.104-109
Abstract: Mobile servers are established to provide services for mobile nodes in an anticipated area. If the distribution of mobile nodes can be foreseen, the location of mobile servers becomes critical to the QoS of wireless systems. Under resource and topology constraints, it is very difficult to figure out a solution, or unable to cover all given mobile nodes within limited number of mobile servers. In this paper, we study the issue of the partial covering problem such that part of mobile nodes to be covered. Several approximation algorithms are proposed to cover the maximum number of elements. For real time systems, such as the battle-field communication system, the proposed algorithms with polynomial-time complexity can be efficiently applied. The algorithm complexity analysis illustrates the improvement made by our algorithms. The experimental results show that the performance of our algorithms is much better than other existing 3-approximation algorithm for the robust k-center problem.
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Type: Conference Paper
URI: http://hdl.handle.net/10397/826
ISBN: 0-7695-2135-5
Appears in Collections:COMP Conference Papers & Presentations

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