Minimum-energy connected coverage in wireless sensor networks with omni-directional and directional features

Wireless Sensor Networks (WSNs) have acquired new features recently, i.e., both the sensor and the antenna of a node can be directional. This brings new challenges to the Connected Coverage (CoCo) problem, where a finite set of targets needs to be monitored by some active sensor nodes, and the connectivity of these active nodes with the sink must be retained at the same time. In this paper, we study the Minimum-Energy Connected Coverage (MeCoCo) problem in WSNs with Omni-directional (O) and Directional (D) features, aiming at minimizing the total energy cost of both sensing and connectivity. Considering different combinations of O and D features, we study the MeCoCo problem under four cases, namely: O-Antenna and O-Sensor (OAOS), O-Antenna and D-Sensor (OADS), D-Antenna and D-Sensor (DADS), as well as D-Antenna and O-Sensor (DAOS). We prove that the MeCoCo problem is NP-hard under all these cases, and present approximation algorithms with provable approximation ratios. In particular, we propose a constant-approximation for OAOS, and polylogarithmic approximations for all other cases. Finally, we conduct extensive simulations and the results strongly confirm the effectiveness of our approach.

[1]  Anlong Ming,et al.  A Coverage-Enhancing Method for 3D Directional Sensor Networks , 2009, IEEE INFOCOM 2009.

[2]  Kenneth L. Clarkson,et al.  Improved Approximation Algorithms for Geometric Set Cover , 2007, Discret. Comput. Geom..

[3]  Catherine Rosenberg,et al.  Efficient algorithms to solve a class of resource allocation problems in large wireless networks , 2009, 2009 7th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks.

[4]  Jie Wang,et al.  Strong barrier coverage of wireless sensor networks , 2008, MobiHoc '08.

[5]  Minglu Li,et al.  Target-oriented scheduling in directional sensor networks , 2007, IEEE INFOCOM 2007 - 26th IEEE International Conference on Computer Communications.

[6]  Giordano Fusco,et al.  Placement and Orientation of Rotating Directional Sensors , 2010, 2010 7th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON).

[7]  Weijia Jia,et al.  Connected coverage in wireless networks with directional antennas , 2011, 2011 Proceedings IEEE INFOCOM.

[8]  Jie Wu,et al.  Energy-efficient connected coverage of discrete targets in wireless sensor networks , 2009, Int. J. Ad Hoc Ubiquitous Comput..

[9]  Kurt Mehlhorn,et al.  A Faster Approximation Algorithm for the Steiner Problem in Graphs , 1988, Inf. Process. Lett..

[10]  Yigal Bejerano,et al.  Lifetime and Coverage Guarantees Through Distributed Coordinate-Free Sensor Activation , 2011, IEEE/ACM Transactions on Networking.

[11]  Alhussein A. Abouzeid,et al.  Coverage by directional sensors in randomly deployed wireless sensor networks , 2006, J. Comb. Optim..

[12]  Zhu Wang,et al.  Wireless coverage with disparate ranges , 2011, MobiHoc '11.

[13]  F. Richard Yu,et al.  Directional Sensor Placement with Optimal Sensing Range, Field of View and Orientation , 2008, 2008 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications.

[14]  Guoliang Xing,et al.  Integrated coverage and connectivity configuration for energy conservation in sensor networks , 2005, TOSN.

[15]  Xiang Cao,et al.  Deploying Directional Sensor Networks with Guaranteed Connectivity and Coverage , 2008, 2008 5th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks.

[16]  Feng Li,et al.  LAACAD: Load Balancing k-Area Coverage through Autonomous Deployment in Wireless Sensor Networks , 2012, 2012 IEEE 32nd International Conference on Distributed Computing Systems.

[17]  Yi Wang,et al.  Minimizing service delay in directional sensor networks , 2011, 2011 Proceedings IEEE INFOCOM.

[18]  Dong Xuan,et al.  On Deploying Wireless Sensors to Achieve Both Coverage and Connectivity , 2006, 2009 5th International Conference on Wireless Communications, Networking and Mobile Computing.

[19]  Qun Zhao,et al.  Lifetime Maximization for Connected Target Coverage in Wireless Sensor Networks , 2008, IEEE/ACM Transactions on Networking.

[20]  Brian D. O. Anderson,et al.  Localization in sparse networks using sweeps , 2006, MobiCom '06.

[21]  Alex Zelikovsky,et al.  An improved approximation scheme for the Group Steiner Problem , 2001, Networks.

[22]  Weili Wu,et al.  Energy-efficient target coverage in wireless sensor networks , 2005, Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies..

[23]  Guy Kortsarz,et al.  A greedy approximation algorithm for the group Steiner problem , 2006, Discret. Appl. Math..

[24]  Mihaela Cardei,et al.  Energy-efficient connected-coverage in wireless sensor networks , 2008, Int. J. Sens. Networks.

[25]  Giordano Fusco,et al.  Selection and Orientation of Directional Sensors for Coverage Maximization , 2009, 2009 6th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks.

[26]  Felix Schlenk,et al.  Proof of Theorem 3 , 2005 .

[27]  R. Ravi,et al.  A polylogarithmic approximation algorithm for the group Steiner tree problem , 2000, SODA '98.

[28]  Ian F. Akyildiz,et al.  Wireless sensor networks: a survey , 2002, Comput. Networks.

[29]  Ai Chen,et al.  Designing localized algorithms for barrier coverage , 2007, MobiCom '07.

[30]  Xiang-Yang Li,et al.  Energy Efficient Target-Oriented Scheduling in Directional Sensor Networks , 2009, IEEE Transactions on Computers.

[31]  Anish Arora,et al.  Barrier coverage with wireless sensors , 2005, MobiCom '05.

[32]  Jun Luo,et al.  Non-Interactive Location Surveying for Sensor Networks with Mobility-Differentiated ToA , 2006, Proceedings IEEE INFOCOM 2006. 25TH IEEE International Conference on Computer Communications.

[33]  Xiang-Yang Li,et al.  Minimum-Energy Broadcast Using Practical Directional Antennas in All-Wireless Networks , 2006, Proceedings IEEE INFOCOM 2006. 25TH IEEE International Conference on Computer Communications.

[34]  Yi Wang,et al.  Barrier coverage in camera sensor networks , 2011, MobiHoc '11.