Title: Applying REECHD to non-uniformly distributed heterogeneous devices

Authors: Diletta Cacciagrano; Flavio Corradini; Matteo Micheletti; Leonardo Mostarda

Addresses: Department of Computer Science, University of Camerino, Camerino, Italy ' Department of Computer Science, University of Camerino, Camerino, Italy ' Department of Computer Science, University of Camerino, Camerino, Italy ' Department of Computer Science, University of Camerino, Camerino, Italy

Abstract: Heterogeneous Wireless Sensor Networks (WSNs) include nodes with different initial energy, different transmission rate and hardware. Clustering is an energy-efficient approach to collect data in a WSN. Clustering partitions the WSN nodes into clusters. Each cluster has a cluster head (CH) that gathers data from its member nodes and forwards them to a base station. Rotating Energy Efficient Clustering for Heterogeneous Devices (REECHD) is our novel clustering algorithm which introduces the concept of intra-traffic limit rate (ITLR). This defines a limit on the intra-traffic communication that all WSN clusters must comply with. In this paper we apply REECHD to a WSN where devices are not uniformly distributed. We show how the use of ITLR improves energy efficiency by adaptively generating a different amount of clusters in different WSN subareas. Our results show that REECHD enhances on average the network lifespan when compared to the state-of-art protocols.

Keywords: energy efficiency; clustering; heterogeneous wireless sensor networks.

DOI: 10.1504/IJGUC.2020.110061

International Journal of Grid and Utility Computing, 2020 Vol.11 No.5, pp.629 - 645

Received: 16 Nov 2019
Accepted: 02 Dec 2019
Published online: 02 Oct 2020 *

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