نتایج جستجو برای: cluster heads chs

تعداد نتایج: 218097  

Journal: :Complex & Intelligent Systems 2023

Abstract Radio jamming represents a serious threat in wireless networks that can cause denial of service (DoS) attacks for the network users. The jammer transmits signals to disrupt normal operation networks. With proliferation unmanned aerial vehicle (UAV)-based and Internet Things technologies, have become major challenge practical adoption these technologies. In this paper, we investigate pr...

2006
Ewa Hansen Jonas Neander Mikael Nolin Mats Björkman

In this paper we investigate the usefulness of enforcing a minimum separation distance between cluster heads in a cluster based sensor network, thereby prolonging network lifetime by spreading the cluster heads, thus lowering the average communication en-

2010
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 state, making the system recover from errors and temporarily broken assumptions. Clustering nodes within ad-hoc networks can help in many ways like forming backbones, facilitating routing, improving scaling, aggregating informa...

Journal: :Computer systems science and engineering 2023

With the exponential developments of wireless networking and inexpensive Internet Things (IoT), a wide range applications has been designed to attain enhanced services. Due limited energy capacity IoT devices, energy-aware clustering techniques can be highly preferable. At same time, artificial intelligence (AI) applied perform appropriate disease diagnostic processes. this motivation, study de...

2014
S. Jothi M. Chandrasekaran

In Wireless Sensor Networks (WSN), the clustering protocol requires the nodes local information like energy level, distance between to BS and node density, link quality and load while estimating the cluster heads to handle network lifetime. In this study, we propose fuzzy based optimal clustering protocol for maximizing lifetime in WSN. Initially, several provisional cluster heads are elected i...

Journal: :TIIS 2010
Dae-Young Kim Jinsung Cho Byeong-Soo Jeong

Data routing in wireless sensor networks must be energy-efficient because tiny sensor nodes have limited power. A cluster-based hierarchical routing is known to be more efficient than a flat routing because only cluster-heads communicate with a sink node. Existing hierarchical routings, however, assume unrealistically large radio transmission ranges for sensor nodes so they cannot be employed i...

Journal: :JCP 2012
Tie Qiu Wei Wang Feng Xia Guowei Wu Yu Zhou

In energy constrained wireless sensor networks, it is significant to make full use of the limited energy and maximize the network lifetime even when facing some unexpected situation. In this paper, all sensor nodes are grouped into clusters, and for each cluster, it has a mobile cluster head to manage the whole cluster. We consider an emergent situation that one of the mobile cluster heads is b...

Journal: :IJCNS 2010
Yang Yang Enjian Bai Jia Hu Wenqiang Wu

Wireless sensor networks are widely used for its flexibility, but they also suffer from problems like limited capacity, large node number and vulnerability to security threats. In this paper, we propose a multi-path routing protocol based on the credible cluster heads. The protocol chooses nodes with more energy remained as cluster heads at the cluster head choosing phase, and then authenticate...

2004
Vivek P. Mhatre Catherine Rosenberg Daniel Kofman Ravi Mazumdar Ness B. Shroff

A surveillance area is to be monitored using a grid network of heterogeneous sensor nodes. There are two types of nodes; type 0 nodes which perform sensing and relaying of data within a cluster, and type 1 nodes which act as cluster heads or fusion points. A surveillance aircraft visits the area periodically, and gathers information about the activity in the area. During each data gathering cyc...

Journal: :Energies 2022

In Wireless Sensor Networks (WSNs), routing algorithms can provide energy efficiency. However, due to unbalanced consumption for all nodes, the network lifetime is still prone degradation. Hence, efficient was developed in this article by selecting cluster heads (CH) with help of adaptive whale optimization (AWOA) which used reduce time-consumption delays. The multi-objective function CH select...

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