International Journal of Sensors and Sensor Networks 2017; 5(5-1): 6-12 http://www.sciencepublishinggroup.com/j/ijssn doi: 10.11648/j.ijssn.s.2017050501.12 Energy Efficient in Wireless Sensor Networks Using Cluster-Based Approach Routing Hassan Oudani, Salahddine Krit, Mustapha Kabrane, Kaoutar Bandaoud, Mohamed Elaskri, Khaoula Karimi, Hicham Elbousty, Lahoucine Elmaimouni Laboratory of Engineering Sciences and Energies, Polydisciplinary Faculty of Ouarzazate, Ibn Zohr University, Agadir, Morocco Email address: Hassan.oudani@gmail.com (H. Oudani), salahddine.krit@gmail.com (S. Krit), la_elmaimouni@yahoo.fr (L. Elmaimouni) To cite this article: Hassan Oudani, Salahddine Krit, Mustapha Kabrane, Kaoutar Bandaoud, Mohamed Elaskri, Khaoula Karimi, Hicham Elbousty, Lahoucine Elmaimouni. Energy Efficient in Wireless Sensor Networks Using Cluster-Based Approach Routing. International Journal of Sensors and Sensor Networks. Special Issue: Smart Cities Using a Wireless Sensor Networks. Vol. 5, No. 5-1, 2017, pp. 6-12. doi: 10.11648/j.ijssn.s.2017050501.12 Received: March 22, 2017; Accepted: April 7, 2017; Published: May 13, 2017 Abstract: In wireless sensor networks, the energy consumed by each node of the network influences the lifetime of the networks, more than the consumption of energy increases more than the lifetime of the networks decreases, this is why the increase of the lifetime of the networks requires a strategy (protocol) which reduces the power consumption of the transmission or reception of data by the sensor nodes. In recent years much research has been done to maximize a life time of network sensor. To deal with this, the hierarchical protocols (Cluster based-approach, chain based-approach) have been developed in order to reduce the network traffic toward the sink and therefore prolong the network lifetime. In this paper, the focus is mainly driven over the survey of the energy-efficient using hierarchical cluster-based approach namely LEACH (Low Energy Adaptive Clustering Hierarchy Protocol), in order to propose a new method to maximize more the life time of network sensor. Our method is to conserve energy consumption when transmitting data to the Base Station (BS). We evaluated the performance of the LEACH protocol with our proposed method simulated, the results of our method are demonstrated by the simulation results using Matlab Simulink. Keywords: Network Sensor, Hierarchical Protocols, LEACH, Energy-Efficient, Cluster Based-Approach, Matlab 1. Introduction A wireless sensor network (WSN) consists of a large number of small-sensor nodes used to monitor areas, collect and report data to the base station (BS)[1], in the other, each node serves as transmitter and router, these sensors (node) are used to control an environment and transmit the captured data to the base stations [2]. In general Wireless Sensor Network (WSN) is a set of communicating sensors using wireless links [1, 2]. The nodes are usually powered by batteries with finite capacity and it is always impossible to replenish the power [3, 24], for that the failure of the energy sensor can significantly modify the topology of the network and impose an expensive reorganization of the network [4]. In order to extend the lifetime of the network, several routing approaches have been proposed. Among these protocols, the hierarchical routing in which the network is partitioned into small groups and each group is monitored and controlled by a node called (Cluster Head: CH). A CH is responsible for transmitting the information collected by the nodes of its cluster and it can compress the data before sending it to the BS [6]. In WSN power saving techniques can generally be classified in two categories [3]: a) Scheduling the sensor nodes to alternate between active and sleep mode. b) Adjusting the transmission or sensing radius of the wireless nodes. In this paper we study the performances of the LEACH protocol and the existing improvement has been implemented and our approach to prolong the lifetime of the sensors. In Section II we present the application and characteristics of wireless sensor network. Section III presents the cluster based approach protocols and the operation of LEACH protocol. Section IV detailed the existing method algorithm based on LEACH protocol, Section V and VI detailed our proposed