Title: Dynamic load tuning for energy-hole avoidance in corona model for a wireless sensor network

Authors: Krishna Pal Sharma; Teek Parval Sharma

Addresses: Department of Computer Science and Engineering, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, 144011, India ' Department of Computer Science and Engineering, National Institute of Technology, Hamirpur, Himachal Pradesh, 177005, India

Abstract: In wireless sensor networks (WSNs), nodes near to sink communicate more than the nodes at farther away from the sink. This load imbalance causes an energy hole around sink and affects overall network lifetime. Therefore, a corona model based approach is proposed to enhance network's lifetime by balancing energy depletion rate across network and avoiding energy hole around sink. The approach balances energy depletion in inter-corona as well as in intra-corona. In inter-corona, the balance in energy depletion rate is achieved by assigning decreasing communication ranges from outermost to innermost coronas whereas in intra-corona, the balance is achieved by dynamically tuning relay load over nodes during data transmission. The relay load tuning considers current relay load and remaining energy of nodes. The proposed scheme works well for uniformly and non-uniformly deployed networks. To validate the results, the approach is compared with baseline approaches through ns-2 based simulation.

Keywords: communication range; energy holes; network lifetime; non-uniform deployment; WSNs; wireless sensor networks.

DOI: 10.1504/IJSNET.2019.099234

International Journal of Sensor Networks, 2019 Vol.30 No.1, pp.56 - 68

Accepted: 08 Jan 2019
Published online: 23 Apr 2019 *

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