Energy Performance of LDPC Scheme in Multi-Hop Wireless Sensor Network with Two base Stations Model

Abstract

Conservation of the energy is one of the main design issues in wireless sensor networks. The limited battery power of each sensor node is a challenging task in deploying this type of network. The challenge is crucial in reliable wireless network when implementing efficient error correcting scheme with energy consuming routing protocol. In this work, we investigated the energy performance of LDPC code in multi-hop wireless sensor network. We proposed a model of two base stations to prolong the lifetime and build a reliable and energy-efficient network. Through performed MATLAB simulations, we examine the energy effectiveness of multiple base stations model on reliable wireless sensor network performance in different network dimensions. Keyword:Low density parity check Minimum transmission energy error correcting codes Reliability Wireless sensor networks energy-efficiency Copyright © 2017 Institute of Advanced Engineering and Science.All rights reserved. Corresponding Author:Mounir Arioua, Department of Telecommunication Systems and Networks, National School of Applied Sciences of Tetuan, Abdelmalek Essaadi University, Quartier M'haneche II, avenue Palestine B.P. 2222 Tétouan, Morocco. Email: m.arioua@ieee.org INTRODUCTIONThe major constraint in the deployment of wireless sensor networks is the limited battery power of each sensor node and the energy restrictions due to the error correcting scheme deployment to reach high link reliability in the network [1]. In tactical WSNs, nodes which are severely energy constrained have to rely on little energy storage for potentially months or years of service [2]. For this reason, optimization techniques needed to be implemented with the existing designed protocols used by the network to minimize the energy depletion rate (EDR) of the node and subsequently extend the service life of the WSN [3]. Moreover, these types of networks are expected to be reliable, particularly in flawed communication channel [4]. Reducing the energy consumption and increasing the network lifespan of the network in hostile environment is a crucial maneuver [5].Efficient error correcting codes (ECC) such as LDPC (Low Density Parity Check) and RS (Reed Solomon) codes are used to improve the link reliability and lower the required transmitted power [6], [7]. However, the reliability level of the LDPC codes is provided at the cost of the energy efficiency of decoding process. In fact, these codes have a large computational complexity and employ a complex iterative decoding in the receiver which raises the energy consumption [8]. The preponderance of existing research in WSNs generally includes the perspective of a single base station. To optimize the trade-off reliability-energy in multi-hop network, we proposed a two base stations model and investigated the performance of LDPC code in different network dimensions. We extended the usual WSN conception to a two-base stations framework to improve the energy efficiency of reliable sensor network. We examined the impact of deploying two base

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