Using Mobile Sensors to Enhance Coverage in Linear Wireless Sensor Networks

One of the main challenges of using Linear Wireless Sensor Networks (LSN) is the reliability of the connections among the nodes. Faults in a few contiguous nodes may cause the creation of holes which will result in dividing the network into multiple disconnected segments. As a result, sensor nodes that are located between holes may not be able to deliver their sensed information which negativity affects the network sensing coverage. This paper develops two models to utilize mobile sensors to help recover from these faults and enhance coverage. The first model utilizes mobile sensors to cover the holes while the second model has the feature of reallocating previously deployed mobile sensors for best possible coverage. In both models, the added mobile nodes can provide additional sensing coverage as well as enable connectivity among disconnected segments in the LSN. Evaluations and comparisons between both models are provided. In addition, an analytical model for finding the expected number of mobile sensors needed for maintaining high coverage in a LSN with specific configurations is developed and validated.

[1]  M. N. Giriprasad,et al.  ENERGY EFFICIENT COVERAGE PROBLEMS IN WIRELESS Ad Hoc SENSOR NETWORKS , 2011 .

[2]  Anfeng Liu,et al.  An Energy-Balanced Data Gathering Algorithm for Linear Wireless Sensor Networks , 2010, Int. J. Wirel. Inf. Networks.

[3]  Shiyao Jin,et al.  Coverage Problem in Wireless Sensor Network: A Survey , 2010, J. Networks.

[4]  Jameela Al-Jaroodi,et al.  Reliability Analysis of Linear Wireless Sensor Networks , 2013, 2013 IEEE 12th International Symposium on Network Computing and Applications.

[5]  Thomas F. La Porta,et al.  Sensor relocation in mobile sensor networks , 2005, Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies..

[6]  Dharma P. Agrawal,et al.  Linear wireless sensor networks: Classification and applications , 2011, J. Netw. Comput. Appl..

[7]  Keith M. Martin,et al.  Ultra-Lightweight Key Predistribution in Wireless Sensor Networks for Monitoring Linear Infrastructure , 2009, WISTP.

[8]  Gaurav S. Sukhatme,et al.  Mobile Sensor Network Deployment using Potential Fields : A Distributed , Scalable Solution to the Area Coverage Problem , 2002 .

[9]  N. Mohamed,et al.  A routing protocol and addressing scheme for oil, gas, and water pipeline monitoring using wireless sensor networks , 2008, 2008 5th IFIP International Conference on Wireless and Optical Communications Networks (WOCN '08).

[10]  Jameela Al-Jaroodi,et al.  Monitoring Underwater PIpelines Using Sensor Networks , 2010, 2010 IEEE 12th International Conference on High Performance Computing and Communications (HPCC).

[11]  Li Hong,et al.  Energy-Efficient Node Placement in Linear Wireless Sensor Networks , 2010, 2010 International Conference on Measuring Technology and Mechatronics Automation.

[12]  Qian Zhang,et al.  Probabilistic Field Coverage using a Hybrid Network of Static and Mobile Sensors , 2007, 2007 Fifteenth IEEE International Workshop on Quality of Service.

[13]  Marco Zimmerling,et al.  Energy-Efficient Routing in Linear Wireless Sensor Networks , 2007, 2007 IEEE Internatonal Conference on Mobile Adhoc and Sensor Systems.

[14]  Jameela Al-Jaroodi,et al.  Failure impact on coverage in linear wireless sensor networks , 2013, 2013 International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS).

[15]  Moslem Noori,et al.  Characterizing the traffic distribution in linear wireless sensor networks , 2008, IEEE Communications Letters.

[16]  Gaurav S. Sukhatme,et al.  Constrained coverage for mobile sensor networks , 2004, IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004.

[17]  Krishnendu Chakrabarty,et al.  Sensor deployment and target localization based on virtual forces , 2003, IEEE INFOCOM 2003. Twenty-second Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE Cat. No.03CH37428).

[18]  Lachlan L. H. Andrew,et al.  Connectivity, Coverage and Placement in Wireless Sensor Networks , 2009, Sensors.

[19]  Jameela Al-Jaroodi,et al.  Sensor Network Architectures for Monitoring Underwater Pipelines , 2011, Sensors.