WSEAS Transactions on Communications
Print ISSN: 1109-2742, E-ISSN: 2224-2864
Volume 13, 2014
Performance of Hybrid Virtual Force Algorithms on Mobile Deployment in Wireless Sensor Networks
Authors: , ,
Abstract: In this paper, three Hybrid Virtual Force Algorithms (HVFA) are proposed to improve the performance of coverage rate, connectivity and energy-efficient moving for dynamic deployment in Wireless Sensor Networks (WSNs). Potential-field-based virtual force algorithm (PF-VFA) can improve the coverage area by distributed mobile deployment. However, the network connectivity performance is degraded due the unevenly node density in WSNs. Therefore, in this paper, a local-density based VFA (LD-VFA) is proposed to improve the network connectivity. Moreover, to further compromise the coverage rate and network connectivity, the sector-density based PF-VFA (PFSD-VFA) is proposed to provide the global density balance. The energy-efficiency of the energy consumption for mobile nodes is considered as one performance metric for sensor dynamic deployment in WSNs. Therefore, a performance combining coverage rate, connectivity, and total moving distance are investigated for the HVFA schemes. Simulation results show that the combing local-density and sector-density VFA (LDSD-VFA) outperform the other VFA schemes.
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Keywords: Hybrid virtual force algorithms, coverage rate, network connectivity, local-node-density, sector-nodedensity, energy-efficiency
Pages: 558-566
WSEAS Transactions on Communications, ISSN / E-ISSN: 1109-2742 / 2224-2864, Volume 13, 2014, Art. #61