Hop-Based Energy Aware Routing Algorithm for Wireless Sensor Networks

Abstract

Wireless sensor networks (WSNs) have attracted quite attention due to their wide potential applications. Up to now, a huge amount of energy efficient routing protocols or algorithms have been proposed to improve energy efficiency. In this paper, we try to prolong network lifetime by studying the relationship between hop number and energy consumption. A Hop-based Energy Aware Routing (HEAR) algorithm for WSNs is proposed. The simulation results show that our algorithm outperforms several existing protocols, such as shortest path algorithm, maximum remaining energy algorithm in the aspect of energy consumption and network lifetime. Depending on the real network environment, our algorithm can reduce energy consumption up to 50% and improve the network lifetime up to 125% comparing with the existing routing algorithms. -wireless sensor network, energy consumption, network lifetime, routing, hop number. Index Terms

MUCH: Multi-Criteria Cluster Head Delegation Based on Fuzzy Logic

“…The energy consumption model we use is adopted from [11,14,19]. Each sensor consumes energy E Tx for transmitting L-bit data over distance d and E Rx amount of energy to receive L-bit data:…”

“…How to organize the cluster and select the cluster head has attracted considerable attention in WSNs. A variety of clustering protocols have been proposed to achieve energy efficient data routing [11,12,13,14,15,16]. The rest of the paper is organized as follows.…”

A Method to Prolong the Lifetime of Wireless Sensor Network

“…It is commonly agreed that multi-hop routing is more energy efficient than direct transmission routing under large scale network or when the source to sink distance is relatively large [7][8][9]. In [7], the authors focus on theoretical analysis of multi-hop routing based on various energy models.…”

“…In [8], the authors also suggest to use sub-optimal candidate route occasionally so as to protect the optimal minimal energy route from being overused. In our previous work [9], we propose a Hop-based Energy Aware Routing (HEAR) algorithm which is an energy efficient multi-hop routing algorithm.…”

“…Based on our previous work in [9], our objective in this paper is to optimize each individual distance so that all sensors will consume their energy at similar rate. After the theoretical analysis of hotspot, we propose our Distance-based Energy Aware Routing (DEAR) algorithm for WSNs with simulation results.…”