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Local Maximal Matching and Local 2-Approximation for Vertex Cover in UDGs

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Abstract

We present 1 − ε approximation algorithms for the maximum matching problem in location aware unit disc graphs and in growth-bounded graphs. The algorithm for unit disk graph is local in the sense that whether or not an edge is in the matching depends only on other vertices which are at most a constant number of hops away from it. The algorithm for growth-bounded graphs needs at most \(O\left(\log\triangle\log^{*}n\right.+\) \(\left.\frac{1}{\epsilon}^{O(1)}\cdot\log^{*}n\right)\) communication rounds during its execution. Using these matching algorithms we can compute vertex covers of the respective graph classes whose size are at most twice the optimal.

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References

  1. Bar-Yehuda, R., Even, S.: A local-ratio theorem for approximating the weighted vertex cover problem. Annals of Discrete Mathematics 25, 27–45 (1985)

    MathSciNet  Google Scholar 

  2. Barrière, L., Fraigniaud, P., Narayanan, L.: Robust position-based routing in wireless ad hoc networks with unstable transmission ranges. In: DIAL-M, pp. 19–27. ACM Press, New York (2001)

    Chapter  Google Scholar 

  3. Borbash, S.A., Ephremides, A.: The feasibility of matchings in a wireless network. IEEE/ACM Transactions on Networking 14(SI), 2749–2755 (2006)

    MathSciNet  Google Scholar 

  4. Dinur, I., Safra, S.: The importance of being biased. In: Proceedings of the 34th Annual ACM Symposium on Theory of Computing (STOC 2002), May 19–21, 2002, pp. 33–42. ACM Press, New York (2002)

    Chapter  Google Scholar 

  5. Edmonds, J.: Paths, trees, and flowers. Canadian J. Math. 17, 449–467 (1965)

    MATH  MathSciNet  Google Scholar 

  6. Garey, M., Johnson, D.: Computers and Intractability: A Guide to the theory of NP-completeness. Freeman, NY (1979)

    MATH  Google Scholar 

  7. Hopcroft, J.E., Karp, R.M.: An n 5/2 algorithm for maximum matchings in bipartite graphs. SIAM Journal on Computing 2(4), 225–231 (1973)

    Article  MATH  MathSciNet  Google Scholar 

  8. Hunt III, H.B., Marathe, M.V., Radhakrishnan, V., Ravi, S.S., Rosenkrantz, D.J., Stearns, R.E.: NC-approximation schemes for NP- and PSPACE-hard problems for geometric graphs. J. Algorithms 26(2), 238–274 (1998)

    Article  MATH  MathSciNet  Google Scholar 

  9. Kuhn, F., Moscibroda, T., Nieberg, T., Wattenhofer, R.: Fast deterministic distributed maximal independent set computation on growth-bounded graphs. In: Fraigniaud, P. (ed.) DISC 2005. LNCS, vol. 3724, pp. 273–287. Springer, Heidelberg (2005)

    Chapter  Google Scholar 

  10. Kuhn, F., Nieberg, T., Moscibroda, T., Wattenhofer, R.: Local approximation schemes for ad hoc and sensor networks. In: DIALM-POMC 2005: Proceedings of the 2005 joint workshop on Foundations of mobile computing, pp. 97–103. ACM Press, New York (2005)

    Chapter  Google Scholar 

  11. Linial, N.: Locality in distributed graph algorithms. SIAM J. Comput. 21(1), 193–201 (1992)

    Article  MATH  MathSciNet  Google Scholar 

  12. Tassiulas, L., Sarkar, S.: Maxmin fair scheduling in wireless networks. In: Proceedings of the 21st Annual Joint Conference of the IEEE Computer and Communications Society (INFOCOM 2002), Piscataway, NJ, USA, June 23–27, 2002, vol. 2, pp. 763–772. IEEE Computer Society, Los Alamitos (2002)

    Google Scholar 

  13. Wiese, A., Kranakis, E.: Impact of locality on location aware unit disk graphs. Technical Report TR-07-21, Carleton University, School of Computer Science, Ottawa (December 2007)

    Google Scholar 

  14. Wiese, A., Kranakis, E.: Local PTAS for Independent Set and Vertex Cover in Location Aware UDGs. In: Nikoletseas, S.E., Chlebus, B.S., Johnson, D.B., Krishnamachari, B. (eds.) DCOSS 2008. LNCS, vol. 5067. Springer, Heidelberg (2008)

    Chapter  Google Scholar 

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Wiese, A., Kranakis, E. (2008). Local Maximal Matching and Local 2-Approximation for Vertex Cover in UDGs. In: Coudert, D., Simplot-Ryl, D., Stojmenovic, I. (eds) Ad-hoc, Mobile and Wireless Networks. ADHOC-NOW 2008. Lecture Notes in Computer Science, vol 5198. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85209-4_1

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  • DOI: https://doi.org/10.1007/978-3-540-85209-4_1

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-85208-7

  • Online ISBN: 978-3-540-85209-4

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