scholarly journals An Optimal Cluter Head Parameter in Leach Protocol of Wireless Sensor Networks

2020 ◽  
Vol 18 (4.2) ◽  
pp. 8
Author(s):  
Tat-Bao-Thien Nguyen
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Energy Saving ◽  
Efficient Solution ◽  
Optimal Number ◽  
Optimal Performance ◽  
Wireless Sensor ◽  
Cluster Heads ◽  
Leach Protocol ◽  
Head Parameter

In wireless sensor networks, LEACH is often used as an energy saving protocol and extends the network life. However, there are many parameters that affect the performance of the LEACH protocol, one of which is the number of cluster heads. This paper proposes a simple and efficient solution to determine the optimal number of cluster heads in the LEACH protocol. For the proposed solution, the system can achieve the optimal performance between the longest lifetime in the constraint as the largest amount of data transmitted in the network.   

Research on Improvement of LEACH Protocol with Heterogeneous Nodes

2013 ◽  
Vol 765-767 ◽  
pp. 1675-1679
Author(s):  
Li Cui Zhang ◽  
Dan Wang ◽  
Xiao Fei Xu
Keyword(s):  
Energy Efficiency ◽  
Wireless Sensor Networks ◽  
Load Balance ◽  
Optimal Number ◽  
Wireless Sensor ◽  
Communication Mode ◽  
Cluster Heads ◽  
Leach Protocol ◽  
Heterogeneous Nodes ◽  
Cluster Probability

It is necessary to consider the energy efficiency of nodes and load balance in wireless sensor networks. This paper combines with the network of the actual heterogeneous nodes, the improved algorithm of LEACH is proposed, which is called LEACH-HA. The optimal number of cluster heads is derived with improved in the network which increases energy of nodes become cluster probability. A hybrid communication mode that cluster heads alternate between single hop and multi-hop mode is proposed. After analysis LEACH-HA improves the energy efficiency among nodes and expands the coverage of network.

An Improvement Routing Protocol Based LEACH for Wireless Sensor Networks

2014 ◽  
Vol 614 ◽  
pp. 472-475 ◽  
Author(s):  
Jin Gang Cao
Keyword(s):  
Wireless Sensor Networks ◽  
Energy Consumption ◽  
Sensor Networks ◽  
Routing Protocol ◽  
Base Station ◽  
Optimal Number ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Number Of Clusters ◽  
Cluster Heads

Due to limited energy, computing ability, and memory of Wireless sensor Networks(WSN), routing issue is one of the key factors for WSN. LEACH is the first clustering routing protocol, which can efficiently reduce the energy consumption and prolong the lifetime of WSN, but it also has some disadvantage. This paper proposed an improvement based LEACH, called LEACH-T. According to different number of clusters, LEACH-T uses variable time slot for different clusters in steady-state phase, and single-hop or multi-hop to transmit data between cluster heads and Base Station. Also it considered residual energy of sensor nodes and the optimal number of clusters during selection of the cluster heads. The simulation results show that LEACH-T has better performance than LEACH for prolonging the lifetime and reducing the energy consumption.

Improvement of Cluster-Head Selection Mechanism Based on LEACH Protocol in Wireless Sensor Networks

2014 ◽  
Vol 989-994 ◽  
pp. 4273-4276
Author(s):  
Shi Ping Fan ◽  
Xiao Di Zhang ◽  
Hai Li Wang
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Cluster Head ◽  
Premature Death ◽  
Residual Energy ◽  
Wireless Sensor ◽  
Cluster Head Selection ◽  
Selection Mechanism ◽  
Cluster Heads ◽  
Leach Protocol

In order to prolong the lifetime of wireless sensor networks, improvement of cluster-head selection mechanism based on LEACH protocol is proposed. To make the energy distribution more uniform, we consider the relationship of the density of nodes, residual energy of nodes and distance between nodes and Sink node. It eliminates the defect of energy consumption imbalance in the network caused by random position of cluster-heads and the problem of premature death of nodes caused by low energy nodes becoming cluster-heads. Simulation results show that compared with LEACH algorithm, the improved algorithm extend the network lifetime.

scholarly journals Genetic Algorithm Based Clustering for Large-Scale Sensor Networks

2015 ◽  
Vol 15 (6) ◽  
pp. 168-177
Author(s):  
Hai Lin ◽  
Ruoshan Kong ◽  
Jiali Liu
Keyword(s):  
Genetic Algorithm ◽  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Energy Saving ◽  
Large Scale ◽  
Simulation Analysis ◽  
Clustering Algorithms ◽  
Optimal Performance ◽  
Wireless Sensor ◽  
Clustering Method

Abstract Despite the success of various clustering algorithms for Wireless Sensor Networks (WSNs), there are few works that consider the interference between clusters. Obviously, interference-free clustering makes the communication more efficient and achieves energy saving. In this paper we propose a new clustering method for large-scale sensor networks. With this method the network is partitioned into clusters. Intra-cluster communication in a cluster has no interference by its neighbor clusters. Moreover, the proposed clustering is based on a Genetic Algorithm (GA), which can achieve optimal performance in terms of the number of isolated nodes. This is demonstrated by the simulation analysis.

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