نتایج جستجو برای: cluster heads

تعداد نتایج: 216423  

2012
J. L. Liu

This study proposes a genetic algorithm-based (GA-based) ERoS (Energy-efficiency via Role Sharing) protocol with capable of predicting the optimal probability of cluster heads to enhance the performance of cluster-based wireless sensor networks. The proposed GA-based ERoS protocol, termed ERoS-GA, which basically includes set-up and steady-state phases for each round in the protocol, and a prep...

2006
Kyung Tae Kim Hyunsoo Kim Hee Yong Youn

Wireless sensor network consisting of a large number of small sensors is efficient in gathering data in a variety of environments. Since the sensor nodes operate on batteries, energy efficient operations are indispensable to maximize the lifetime of the network. Among the schemes proposed to improve the lifetime of the network, the cluster-based schemes aim to evenly distribute the energy consu...

Journal: :Wireless Sensor Network 2010
Ines Slama Badii Jouaber Djamal Zeghlache

In this paper, a two-tiered Wireless Sensor Network (WSN) where nodes are divided into clusters and nodes forward data to base stations through cluster heads is considered. To maximize the network lifetime, two energy efficient approaches are investigated. We first propose an approach that optimally locates the base stations within the network so that the distance between each cluster head and ...

Journal: :Ad Hoc & Sensor Wireless Networks 2007
Mao Ye Chengfa Li Guihai Chen Jie Wu

Data gathering is a common but critical operation in many applications of wireless sensor networks. Innovative techniques that improve energy efficiency to prolong the network lifetime are highly required. Clustering is an effective topology control approach in wireless sensor networks, which can increase network scalability and lifetime. In this paper, we propose a novel energy efficient clust...

2014
M. Taheri Yousef S. Kavian

The network lifetime is an important issue for employing wireless sensor networks in space and extreme environments. This is due to the fact that the sensing node energy is mainly consumed by transmissions. For maximizing the network lifetime in this paper a multi-hop clustering algorithm using the fuzzy logic improvement methods is introduced. The cluster heads nodes selection is based on four...

2012
Tripti Sharma Brijesh Kumar

Wireless Sensor Network is the network of powerlimited sensing devices called sensors deployed in a region to sense various types of physical information from the environment when these sensors sense and transmit data to other sensors present in the network; considerable amount of energy is dissipated. In this paper, an effort has been done to propose F-MCHEL, a homogeneous energy protocol. In ...

2014
Nadeem Javaid A. Haider M. M. Sandhu N. Amjad S. H. Ahmed M. J. Ashraf A. Ahmed Z. A. Khan U. Qasim N. Javaid

In this paper, we propose Regional Energy Efficient Cluster Heads based on Maximum Energy (REECH-ME) Routing Protocol for Wireless Sensor Networks (WSNs). The main purpose of this protocol is to improve the network lifetime and particularly the stability period of the network. In REECH-ME, the node with the maximum energy in a region becomes Cluster Head (CH) of that region for that particular ...

2013
Jin Wang Liwu Zuo Zhongqi Zhang Xiaoqin Yang Jeong-Uk Kim

Clustering is an effective topology control approach, which can prolong the lifetime and increase scalability for wireless sensor networks (WSNs). The popular criteria for clustering technique are to select cluster heads with more residual energy and to rotate them periodically. However, hot spots will emerge in real network environment at locations where they have heavy traffic load to transfe...

2006
Pi-Rong Sheu Chia-Wei Wang

Recently, extensive research efforts have been devoted to the design of clustering algorithms to organize all the hosts in a mobile ad hoc network into a clustering architecture. However, due to the dynamic nature of the mobile hosts, their association with and dissociation from clusters disturb the stability of the network, making reconfiguration of cluster heads unavoidable. Re-computation of...

2013
Supriya Das P. Shanthi Bala

Wireless sensor networks can be said as the latest development or improvement in the field of wireless communication. However the advantages of the WSN become limited due to the limited resources, especially low-capacity battery of the sensor nodes. Thus, energy aware routing is an important issue for prolonging the lifetime of the WSN. Among all the basic routing protocols based on the network...

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