SRN-LEACH: an energy-efficient leach protocol with random number stabilisation for WSNs

Abstract

The power supplies of wireless sensor networks (WSNs) are not replaceable orrechargeable for sensors. For reducing the communication protocols' impact onthe sensor network's energy dissipation, various protocols or mechanisms havebeen proposed. Therefore, this article proposes a stable random number-basedLEACH protocol to stabilize the random number generation to improve the CHselection efficiency. The wireless sensor network's average node energy (ANE)is multiplied by the random number that relies on the nodes' energy. A nodegrade algorithm (NGA) based relay selection is introduced for inter andintracluster communication for energy efficiency enhancement. The proposed NGA calculates the grade of a node using residual energy, distance from CHs,and its traffic parameters. Based on the simulation results, the proposed SRN-LEACH protocol shows superior performance as compared to existing protocolsincluding reduced energy dissipation, improved communication quality, andNLT. The proposed method attains a minimum average delay of 0.136ms, 0.95% PDR, 148kbps TP rate, and 98% NLT.

KEYWORDS:

• Wireless sensor networks
• LEACH protocol
• cluster head
• average node energy
• node grade algorithm
• relay selection

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Ravi Kumar Sanapala

S. Ravi Kumar is pursuing his PhD in JNTUH under the guidance of Dr. D.Sreenivasa Rao, Professor, ECE Department, JNTUH. in Electronics and Communication Engineering from Andhra University, Visakhapatnam, in March 2005 and his B.Tech in Electronics and Communication Engineering from JNTU in 2002. He is working as an associate professor in the Department of Electronics and Communication Engineering in St. Martin's Engineering College, R.R Dist, TS, India. He has 16 years of teaching experience. His PhD research area is energy-efficient routing for wireless sensor networks.

Srineevasa Rao Duggirala

D. Sreenivasa Rao is a professor at the Department of ECE, College of Engineering, Jawaharlal Nehru Technological University Hyderabad, Hyderabad, India. He completed his PhD with a specialisation in computer networks from the University of Hyderabad in 2004 and his ME with a specialisation in digital systems from Osmania University, Hyderabad, in 1994. He received his Completed B.Tech in Electronics and Communications Engineering from Nagarjuna University, Vijayawada, in the year 1986. Dr D Sreenivasa Rao has guided 13 PhD scholars to date and has 151 publications.