نتایج جستجو برای: head cluster selection

تعداد نتایج: 671142  

2015
P. Thiruvannamalai Sivasankar

The Wireless Sensor Networks (WSN) motivated by its unique characters such as it is capable of enduring callous ecological circumstances, and grant better scalability. The wireless sensor network is composed of insignificant sensors and a base station. The battery supplies the energy for the sensors. Hence, the lifetime of the network gets tainted while overworking for transmission. Since the W...

Journal: :journal of ai and data mining 2014
seyed mojtaba hosseinirad s.k. basu

in this paper, we study wsn design, as a multi-objective optimization problem using ga technique. we study the effects of ga parameters including population size, selection and crossover method and mutation probability on the design. choosing suitable parameters is a trade-off between different network criteria and characteristics. type of deployment, effect of network size, radio communication...

Journal: :JSW 2013
Hongwei Chen Chunhua Zhang Xinlu Zong Chunzhi Wang

As a classic clustering algorithm, LEACH is widely used in wireless sensor networks. Due to the random cluster head selection process, LEACH does not guarantee optimization for the number and position of cluster heads. In order to further optimize LEACH, an optimal energyefficient cluster-heads selection algorithm LEACH-G for LEACH protocol is presented. We calculate the optimal number of clust...

پایان نامه :0 1392

it is definitely necessary to understand the concept and behavior of causation of life insurance policies and its determinants for insurance managers, regulators, and customers. for insurance managers, the profitability and liquidity of insurers can be increasingly influenced by the number of causation through costs, adverse selection, and cash surrender values. therefore, causation is a materi...

Journal: :CoRR 2012
Muhammad Imran Asfandyar khan Azween B. Abdullah

The objective of this paper is to increase life time of homogeneous wireless sensor networks (WSNs) through minimizing long range communication and energy balancing. Sensor nodes are resource constrained particularly with limited energy that is difficult o r impossible to replenish. LEACH (Low Energy Adaptive Clustering Hierarchy) is most well -known cluster based architecture for WSN that aims...

2016
Poonam Beniwal

Wireless Sensor Network has the potentiality to link the physical world with the virtual world by forming a network of sensor nodes. Energy efficient object tracking is one of the main design issues for wireless sensor networks. Energy efficiency is required as the whole WSN is dependent on the power of batteries and the object tracking is required for checking the varying speed of target, targ...

2014
Ying - Hong Wang

To improve clustered communication architecture, in this work a prioritized clustering mechanism is defined. The prioritization is here provided under energy based analysis. The improved formed cluster is defined here with two cluster head. One cluster to control the communication for high energy nodes and other to control the communication for low energy nodes. The work includes a parametric a...

Journal: :ecopersia 2014
mohamad sakizadeh

the objective of this study was to classify the shoosh aquifer to several zones with different water quality in khuzestan province, iran. in this regard, the performance of classification methods (discriminant function and cluster analysis) for the classification of groundwater based on the level of pollution with an emphasis on the problem of over-fitting in training data were considered. an o...

2014
K.Sujana Banu

In earlier works several data aggregation schemas based methods have been proposed to overcome the problems of the privacy in wireless sensor networks. These methods provides efficient result to analysis of secure data with traditional aggregation because cluster heads can straightforwardly comprehensive the cipher texts not including decryption; accordingly, reduces the transmission overhead i...

2006
Jipeng Zhou Jianheng Lu Francis Chi-Moon Lau

Wireless network offers freedom moving around the effective transmission area and the flexibility and easy to use function for Internet application. Many applications of computer network involve multiple users that will rely on the ability of the network to provide multicast services. Thus, multicasting will be concerned as an essential part of Ad Hoc networks. Some of the proposed routing algo...

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