Abstract
It is a conjecture that in any unit disk graph \(G\), \(\alpha (G) \le 3 \cdot \gamma _c(G) + 3\) where \(\alpha (G)\) is the size of the maximum independent set in \(G\) and \(\gamma _c(G)\) is the size of minimum connected dominating set in \(G\). In this paper, we show that in any unit disk graph \(G\), \(\alpha (G) \le 3.399 \cdot \gamma _c(G) + 4.874\). Currently, this is the best-known bound.
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References
Cadei M, Cheng MX, Cheng X, Du D-Z (2002) Connected domination in ad hoc wireless networks. In: Proceedings the Sixth International Conference on Computer Science and Informatics (CS &I’2002)
Clark BN, Colbourn CJ, Johnson DS (1990) Unit disk graphs. Discret Math 86:165–177
Funke S, Kesselman A, Meyer U (2006) A simple improved distributed algorithm for minimum CDS in unit disk graphs. ACM Trans Sens Netw 2:444–453
Gao X, Wang Y, Li X, Wu W (2009) Analysis on theoretical bounds for approximating dominating set problems. Discret Math Algorithms Appl 1(1):71–84
Li M, Wan P-J, Yao FF (2009) Tighter approximation bounds for minimum CDS in wireless ad hoc networks, ISAAC’2009. LNCS 5878:699–709
Li YS, Thai MT, Wang F, Yi C-W, Wan P-J, Du D-Z (2005) On greedy construction of connected dominating sets in wireless networks. Wiley J Wirel Commun Mob Comput 5:927–932
Min M, Huang X, Huang C-H, Wu W, Du H, Jia X (2006) Improving construction for connected dominating set with Steiner tree in wireless sensor networks. J Glob Optim 35:111–119
Vahdatpour A, Dabiri F, Moazeni M, Sarrafzadeh M (2008) Theoretical bound and practical analysis of connected dominating set in ad hoc and sensor networks, In Proceedings of 22nd International Symposium on Distributed Computing (DISC), pp. 481–495
Wan P-J, Alzoubi KM, Frieder O (2004) Distributed construction of connected dominating set in wireless ad hoc networks. ACM Springer Mob Netw Appl 9(2):141–149 A preliminary version of this paper appeared in IEEE INFOCOM, 2002
Wan P-J, Wang L, Yao F (2008) Two-phased approximation algorithms for minimum CDS in wireless ad hoc networks. IEEE ICDCS 2008:337–344
Wu W, Du H, Jia X, Li Y, Huang SC-H (2006) Minimum connected dominating sets and maximal independent sets in unit disk graphs. Theor Comput Sci 352(1–3):1–7
Zhang Z, Wu W, Ding L, Liu Q, Wu L (2013) Packing circles in circles and applications, Handbook of Combinatorial Optimization, 2nd edn, pp. 2549–2584
Acknowledgments
We wish to thank Dr. Yan Huang for her supervision on our research work and reviewers for their insightful comments.
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Du, Y.L., Du, H.W. A new bound on maximum independent set and minimum connected dominating set in unit disk graphs. J Comb Optim 30, 1173–1179 (2015). https://doi.org/10.1007/s10878-013-9690-0
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DOI: https://doi.org/10.1007/s10878-013-9690-0