نتایج جستجو برای: cluster heads

تعداد نتایج: 216423  

2014
Rani Al-Maharmah Guido Bruck Peter Jung

In Mobile Ad Hoc Network (MANET), resources are limited and valuable. Battery power is a sensitive resource, it is limited due to the relatively small size of the mobile nodes. Managing this limited resource with the current battery manufacturing techniques is a key challenge in MANET environment. In order to achieve scalability in MANET, hierarchical solutions are adopted like the cluster-base...

2013
Zahoor A. Khan Srinivas Sampalli

Reducing the energy consumption of available resources is still a problem to be solved in Wireless Sensor Networks (WSNs). Many types of existing routing protocols are developed to save power consumption. In these protocols, cluster-based routing protocols are found to be more energy efficient. A cluster head is selected to aggregate the data received from root nodes and forwards these data to ...

2008
Qiaoqin Li Mei Yang Hongyan Wang Yingtao Jiang Jiazhi Zeng

In our previous work, a highly scalable and faulttolerant network architecture, the Progressive Multi-hop Rotational Clustered (PMRC) structure, is proposed for constructing large-scale wireless sensor networks. Further, the overlapped scheme is proposed to solve the bottleneck problem in PMRC-based sensor networks. As buffer space is often scarce in sensor nodes, in this paper, we focus on stu...

2012
Zhanyang Xu Yue Yin Jin Wang

Clustering is an efficient technique that is widely adopted in wireless sensor networks. It divides network into clusters and let cluster heads be responsible for forwarding aggregated data to the sink. With energy efficiency in account, the conflict between an individual node and the entire network remains to be solved. In this paper, we propose a Density-based Energy-efficient Game-theoretic ...

2012
Jongwon Choe Jun Xu

Abstract This paper suggests an algorithm which increases the energy efficiency based on LEACH (Low Energy Adaptive Clustering Hierarchy)[1] for sensor network routing. Due to the random cluster head election process, LEACH does not guarantee the optimization for the number and position of cluster heads. Also it results in inefficiency in energy consumption. This paper suggests improved cluster...

2015
Jun-Song Fu Yun Liu

Secure and accurate data fusion is an important issue in wireless sensor networks (WSNs) and has been extensively researched in the literature. In this paper, by combining clustering techniques, reputation and trust systems, and data fusion algorithms, we propose a novel cluster-based data fusion model called Double Cluster Heads Model (DCHM) for secure and accurate data fusion in WSNs. Differe...

2017
Wei He Sébastien Pillement Du Xu

Clustering is an efficient approach in a wireless sensor network (WSN) to reduce the energy consumption of nodes and to extend the lifetime of the network. Unfortunately, this approach requires that all cluster heads (CHs) transmit their data to the base station (BS), which gives rise to the long distance communications problem, and in multi-hop routing, the CHs near the BS have to forward data...

2012
Andreas Larsson Philippas Tsigas

Wireless Ad-hoc networks are distributed systems that often reside in error-prone environments. Self-stabilization lets the system recover autonomously from an arbitrary system state, making the system recover from errors and temporarily broken assumptions. Clustering nodes within ad-hoc networks can help forming backbones, facilitating routing, improving scaling, aggregating information, savin...

2015
Zeba Khanam Prateek Singh

Communication in mobile ad hoc networks (MANET) without having any fixed infrastructure has drawn much attention for research. The infrastructure based cellular architecture sets up base stations to support the node mobility. Thus, mapping the concepts of base stations into MANET could meet its challenges like limited battery power, scalability, available bandwidth etc.. This leads to the desig...

2015
JASMINE BEULAH

We study the impact of heterogeneity of nodes in the zone conception of clustered Wireless Sensor Networks. Most of the classical heterogeneous clustering protocols consider the sensing field as a whole for cluster formation. Unlike the existing protocols, the proposed protocol creates rectangular fields called zones and the number of cluster heads elected depends on the zone size and the numbe...

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