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Journal of Sensors
Volume 2017, Article ID 4281597, 16 pages
Research Article

Balanced Transmissions Based Trajectories of Mobile Sink in Homogeneous Wireless Sensor Networks

1COMSATS Institute of Information Technology, Islamabad, Pakistan
2Department of Computer Engineering, College of Computer and Information Sciences, King Saud University, Riyadh, Saudi Arabia
3Information Technology Department, College of Computer and Information Sciences, King Saud University, Riyadh, Saudi Arabia

Correspondence should be addressed to Nadeem Javaid; moc.liamg@uaqdiavajmeedan

Received 7 August 2016; Revised 21 December 2016; Accepted 18 January 2017; Published 20 February 2017

Academic Editor: Chao Wang

Copyright © 2017 Mariam Akbar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Mobile Sink (MS) based routing strategies have been widely investigated to prolong the lifetime of Wireless Sensor Networks (WSNs). In this paper, we propose two schemes for data gathering in WSNs: (i) MS moves on random paths in the network (RMS) and (ii) the trajectory of MS is defined (DMS). In both the schemes, the network field is logically divided into small squares. The center point of each partitioned area is the sojourn location of the MS. We present three linear programming based models: (i) to maximize network lifetime, (ii) to minimize path loss, and (iii) to minimize end to end delay. Moreover, a geometric model is proposed to avoid redundancy while collecting information from the network nodes. Simulation results show that our proposed schemes perform better than the selected existing schemes in terms of the selected performance metrics.