Advertisement

Journal of Combinatorial Optimization

, Volume 19, Issue 2, pp 174–183 | Cite as

On dual power assignment optimization for biconnectivity

  • Chen Wang
  • James Willson
  • Myung-Ah Park
  • Andras Farago
  • Weili Wu
Article

Abstract

Topology control is an important technology of wireless ad hoc networks to achieve energy efficiency and fault tolerance. In this paper, we study the dual power assignment problem for 2-edge connectivity and 2-vertex connectivity in the symmetric graphical model which is a combinatorial optimization problem from topology control technology.

The problem is arisen from the following origin. In a wireless ad hoc network where each node can switch its transmission power between high-level and low-level, how can we establish a fault-tolerantly connected network topology in the most energy-efficient way? Specifically, the objective is to minimize the number of nodes assigned with high power and yet achieve 2-edge connectivity or 2-vertex connectivity.

We addressed these optimization problems (2-edge connectivity and 2-vertex connectivity version) under the general graph model in (Wang et al. in Theor. Comput. Sci., 2008). In this paper, we propose a novel approximation algorithm, called Candidate Set Filtering algorithm, to compute nearly-optimal solutions. Specifically, our algorithm can achieve 3.67-approximation ratio for both 2-edge connectivity and 2-vertex connectivity, which improves the existing 4-approximation algorithms for these two cases.

Keywords

Dual power assignment Biconnectivity Approximation algorithm 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Calinescu G, Wan P-J (2006) Range assignment for biconnectivity and k-edge connectivity in wireless ad hoc networks. Mob Netw Appl 11:121–128 CrossRefGoogle Scholar
  2. Chen J-J, Lu H-I, Kuo T-W, Yang C-Y, Pang A-C (2005) Dual power assignment for network connectivity in wireless sensor networks. In: Proceedings of the IEEE GLOBECOM Google Scholar
  3. Clementi AEF, Penna P, Silvestri R (1999) Hardness results for the power range assignment problem in packet radio networks. In: Proceedings of the 2nd international workshop on approximation algorithms for combinatorial optimization problems (APPROX), pp 197–208 Google Scholar
  4. Diestel R (2000) Graph theory, 2nd edn. Springer, Berlin Google Scholar
  5. Hajiaghayi M, Immorlica N, Mirrokni VS (2003) Power optimization in fault-tolerant topology control algorithms for wireless multi-hop networks. In: Proceedings of the 9th annual international conference on mobile computing and networking Google Scholar
  6. Kirousis LM, Kranakis E, Krizanc D, Pelc A (2000) Power consumption in packet radio networks. Theor Comput Sci 243:289–305 MATHCrossRefMathSciNetGoogle Scholar
  7. Lloyd EL, Liu R (2006) Approximating the minimum number of maximum power users in ad hoc networks. Mob Netw Appl 11:129–142 CrossRefGoogle Scholar
  8. Lloyd E, Liu R, Marathe M, Ramanathan R, Ravi SS (2002) Algorithmic aspects of topology control problems for ad hoc networks. In: Proc. third ACM international symposium on mobile ad hoc networking and computing (mobiHoc), pp 123–134 Google Scholar
  9. Park M-A, Wang C, Willson III JKV, Wu W, Farago A (2006) Fault-tolerant dual-power assignment in wireless sensor networks, Technical Report, UTDCS-52-06 Google Scholar
  10. Poojary N, Krishnamurthy SV, Dao S (2001) Medium access control in a network of ad hoc mobile nodes with heterogenous power capabilities. In: IEEE ICC’01, pp. 872–877 Google Scholar
  11. Rong Y, Choi H, Choi H-A (2004) Dual power management for network connectivity in wireless sensor networks. In: Proceedings of the 18th international parallel and distributed processing symposium Google Scholar
  12. Shah V, Krishnamurthy SV, Poojary N (2004) Improving the MAC layer performance in ad hoc networks of nodes with heterogeneous transmit power capabilities. In: IEEE ICC’04 Google Scholar
  13. Wang C, Park M-A, Willson III JKV, Wu W, Farago A (2008) On approximate optimal dual power assignment for biconnectivity and edge-biconnectivity. Theor Comput Sci 396:180–189 MATHCrossRefMathSciNetGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Chen Wang
    • 1
  • James Willson
    • 1
  • Myung-Ah Park
    • 1
  • Andras Farago
    • 1
  • Weili Wu
    • 1
  1. 1.Tsinghua UniversityBeijingChina

Personalised recommendations