test
server time: root: http://itiis.org
current_path: /journals/tiis/digital-library/22149
current_url: http://itiis.org/journals/tiis/digital-library/22149
Joint Optimization of Mobile Charging and Data Gathering for Wireless Rechargeable Sensor Networks
  • KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Joint Optimization of Mobile Charging and Data Gathering for Wireless Rechargeable Sensor Networks


Abstract

Recent advances in radio frequency (RF) power transfer provide a promising technology to power sensor nodes. Adoption of mobile chargers to replenish the nodes’ energy has recently attracted a lot of attention and the mobility assisted energy replenishment provides predictable and sustained power service. In this paper, we study the joint optimization of mobile charging and data gathering in sensor networks. A wireless multi-functional vehicle (WMV) is employed and periodically moves along specified trajectories, charge the sensors and gather the sensed data via one-hop communication. The objective of this paper is to maximize the uplink throughput by optimally allocating the time for the downlink wireless energy transfer by the WMV and the uplink transmissions of different sensors. We consider two scenarios where the WMV moves in a straight line and around a circle. By time discretization, the optimization problem is formulated as a 0-1 programming problem. We obtain the upper and lower bounds of the problem by converting the original 0-1 programming problem into a linear programming problem and then obtain the optimal solution by using branch and bound algorithm. We further prove that the network throughput is independent of the WMV’s velocity under certain conditions. Performance of our proposed algorithm is evaluated through extensive simulations. The results validate the correctness of our proposed theorems and demonstrate that our algorithm outperforms two baseline algorithms in achieved throughput under different settings.


Statistics

Show / Hide Statistics

Statistics (Cumulative Counts from December 1st, 2015)
Multiple requests among the same browser session are counted as one view.
If you mouse over a chart, the values of data points will be shown.


Cite this article

[IEEE Style]
X. Tian, J. He, Y. Chen and Y. Li, "Joint Optimization of Mobile Charging and Data Gathering for Wireless Rechargeable Sensor Networks," KSII Transactions on Internet and Information Systems, vol. 13, no. 7, pp. 3412-3432, 2019. DOI: 10.3837/tiis.2019.07.005.

[ACM Style]
Xianzhong Tian, Jiacun He, Yuzhe Chen, and Yanjun Li. 2019. Joint Optimization of Mobile Charging and Data Gathering for Wireless Rechargeable Sensor Networks. KSII Transactions on Internet and Information Systems, 13, 7, (2019), 3412-3432. DOI: 10.3837/tiis.2019.07.005.