A Novel Improvement in LEACH Protocol for Decreasing Energy Loss in Wireless Sensor Networks (original) (raw)

A Modified LEACH Protocol for Network Lifetime Enhancement in Wireless Sensor Networks

2015

Wireless sensor network consists of one or more base station and lots of sensor nodes. These sensor nodes are scattered in a specific area and these are battery operated. Since, the energy of battery is limited alternative to this problem is either to recharge the battery or to replace it with other one .In wireless sensor networks (WSNs), due to the limitation of nodes' energy, energy efficiency is an important factor should be considered when the protocols are designing. As a typical representative of hierarchical routing protocols, LEACH Protocol plays an important role. In this paper we proposed a modified LEACH which extends the LEACH clustering routing algorithm protocol in which cluster head chosen criteria is on the basis of minimum distance, maximum residual energy, minimum energy transmission. The result of simulations conducted indicates that the proposed clustering approach is more energy efficient and hence there is enhancement in the sensor network lifetime.

A Survey on LEACH-Based Energy Aware Protocols for Wireless Sensor Networks

2013

Due to the advances in wireless communications and electronics technology, Wireless Sensor Networks (WSNs) are used in many applications such as civil and military application. A WSN is composed on many nodes each of which is basically equipped with a sensing device to collect data from the environment, a processing unit to do some operations on data, a transceiver to send and receive collected, and an energy source to provide the required energy to operate (usually a battery). In most applications sensor nodes are randomly deployed in the field. Therefore, battery replacement or charging is considered not practical. As a result, routing protocols must be energy-efficient to prolong the network lifetime. Researchers have been working to develop routing techniques that enhances the WSN lifetime among which is the hierarchical routing. In this paper, we present a recent survey of hierarchical routing protocols which are based on LEACH protocol. Specifically, we will show the network life time and energy consumption for each protocol. Furthermore, a comparison of these protocols in terms of advantages (improvements over LEACH), disadvantages, assumptions, and the Cluster Head selection criteria are provided. 1

Energy Efficient LEACH protocol for Wireless Sensor Network (I-LEACH)

IJSRD, 2013

In the wireless sensor networks (WSNs), the sensor nodes (called motes) are usually scattered in a sensor field an area in which the sensor nodes are deployed. These motes are small in size and have limited processing power, memory and battery life. In WSNs, conservation of energy, which is directly related to network life time, is considered relatively more important souse of energy efficient routing algorithms is one of the ways to reduce the energy conservation. In general, routing algorithms in WSNs can be divided into flat, hierarchical and location based routing. There are two reasons behind the hierarchical routing Low Energy Adaptive Clustering Hierarchy (LEACH) protocol be in explored. One, the sensor networks are dense and a lot of redundancy is involved in communication. Second, in order to increase the scalability of the sensor network keeping in mind the security aspects of communication. Cluster based routing holds great promise for many to one and one to many communication paradigms that are pre valentines or networks.

Enhanced LEACH Protocol based Energy Efficient Routing in Wireless Sensor Network

The nodes of the Wireless Sensor Network (WSN) have a limited battery power and unchangeable because it is normally deployed in geographical areas where the human interventions are limited. The applications of WSN requires a continuous connection between the nodes and BS should be maintain to transmit the data even when there is no data to transmitted. Therefore, the energy efficient protocols are the primary need of WSN. Many algorithms were developed and this paper presents a novel protocol " Enhanced LEACH " to improve energy efficiency, lifetime and scalability of the network. This proposed scheme introduces some parameters in CH election like distance between nodes, residual energy of nodes and so on. The parameters are combined with LEACH threshold probability function to elect the best CH. The elected CH follows a data transmission power levels in order to extend the lifetime of the network. Enhanced LEACH is compared with LEACH using the metrics such as throughput, lifetime, low amount of energy as well. The simulation results show the proposed scheme consumes less energy, low cost, less collision, less transmission time and increase network lifetime when compared to LEACH.

ENERGY-BALANCED IMPROVED LEACH ROUTING PROTOCOL FOR WIRELESS SENSOR NETWORKS

A proper sensor node clustering is an effective topology control that can balance energy consumption among sensor nodes and increase network scalability and life time. As the use of wireless sensor networks (WSNs) has grown enormously, the need for energy-efficient routing and data aggregation has also risen. LEACH （Low Energy Adaptive Cluster Hierarchy） is a hierarchical clustering protocol that provides an elegant solution for such protocols. Random clustering is the main deficiency of LEACH. In this paper an energy balanced clustering approach is proposed, in which the K-mean clustering algorithm is applied. It is centralized clustering algorithm that based on minimum energy clustering to form optimal clusters. For the candidate nodes, the location and the residual energy are used as key parameters to select the cluster head (CH). The method shows that the proposed approach outperforms LEACH in terms of energy conservation and network life time prolonging.

A Survey on LEACH Protocols in Wireless Sensor Networks

2019

Wireless sensor networks (WSNs) have attracted significant attention over the past few years, and can be employed in a wide spectrum of applications in both civilian and military scenarios. The design of effective, robust, and scalable routing protocols for WSNs is a challenging task. On the other hand, clustering routing algorithms, generally, can well match the constraints and the challenges of WSNs. As a result, it is clearly seen so far that, significant efforts have been made in addressing the techniques to design effective and efficient clustering routing protocols for WSNs in the past few years. In this paper, taking into account the shortcomings of wireless sensor networks, LEACH algorithm, the algorithm has been improved on this basis. The design of the E-LEACH algorithm, which extend the network lifetime, improve node energy utilization, and the effectiveness of this algorithm through simulation experiments. KeywordsLow-Energy Adaptive Clustering Hierarchy (LEACH); Wireles...