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A new centralized clustering protocol for periodic traffic wireless sensor networks is proposed in this paper. The proposed protocol uses one-step off-line cluster computation algorithm, where all the clustering schemes and their respective durations are calculated by the base station (BS) once at the network initialization. This provides the BS a global vision and enables it to reach better clustering...
Radio Frequency Identification (RFID) Network is a collection of readers and tags with reading, computation and communication capabilities. The readers are capable of receiving data from the tags in the monitoring environment. These networks are constraint with energy, memory and computing power. One of the major problems in RFID Network is to capitalize on the lifetime of the network. Hence in order...
The application areas of wireless sensor network often suffered from the threat of limited energy resources. The potentiality of the applications is directly dependent on the number of active sensor nodes are available within the sensor network. Maximizing the lifetime of the sensor nodes is the ultimate way to improve the lifetime of the entire sensor network. Considering mobile sink node raises...
The wireless sensor network is consisting of a large number of micro chips with limited energy capacities that are capable of gathering data in different kinds of environments. Clustering sensors into small groups and each group is controlled by a cluster head, so that sensors transmit data to cluster-heads only and then cluster-heads send the aggregated information to the base station, may save some...
Wireless sensor network consists of a set of tiny sensor nodes. The nodes are continuously sense and transmit the data to the base station. Therefore, energy consumption and network coverage are important issues to improve the life time of the network. Clustering architecture is an effective architecture to reduce the energy consumption. The main aim is to increase network lifetime as well as increase...
Wireless Sensor Networks have been evolved and applied to industrial, commercial, defense and civil applications. Energy is the main constraint in sensor networks. Energy management techniques increases the life cycle of sensor network and enhances the performance of throughput. Multi-hop communication and clustering approaches are used to save the node energy in sensor networks. Energy aware protocols...
As the use of wireless sensor networks (WSNs) has grown enormously in the past few decades, the need of scalable & energy efficient routing and data aggregation protocol for large-scale deployments has also risen. LEACH is a hierarchical clustering protocol that provides an elegant solution for such protocols. One deficiency that affects the performance of the protocol is existence of very large...
Energy efficiency and network lifetime are key factors in characterizing wireless sensor networks due to the limited energy of nodes. In this paper we present two approaches to routing in wireless sensor networks that utilize the ideas of node cooperation and information exchange to achieve cognition across multiple network layers. In the first proposal, nodes exchange information about their statistical...
This paper presents a new cluster based routing protocol for Wireless Sensor Networks called Energy Based Clustering Self organizing map (EBCS). This new protocol can cluster sensor nodes based on multiple parameters; their energy level and coordinates, through using Self Organizing Map neural network capability in multi dimensional data clustering. Energy based clustering can form energy balanced...
Wireless sensor networks have found many applications in different areas, including environmental surveillance, intelligent building, health monitoring, intelligent transportations, etc. The sensor networks consist of numerous tiny autonomous wireless devices with limited energy and memory that monitor physical phenomena. Therefore, energy efficient algorithms and protocols have been one of the most...
Mobile ad hoc networks are a class of dynamic networks without any centralized administration. A major bottleneck in mobile ad hoc networks (MANETs) is the energy consumption since nodes are usually mobile and battery operated. To maximize the lifetime of mobile ad hoc networks (i.e., the lifetime of the nodes themselves) the power depletion of network must be evenly distributed, i.e., there must...
A wireless sensor network has potential to monitor stimulus around it. Sensor networks have severe energy constraints, low data rate with high redundancy, and many-to-one flows. Thus, data centric mechanisms that perform in-network aggregation of data are needed. Clustering is one of the data centric mechanisms in which various cluster heads perform in-network aggregation of data. Thus, there is more...
The quality of service (QoS) to deliver time-and delay-sensitive data is critical in events-driven sensor network applications, which are constrained by energy consumption requirements. So far, most clustering proposals on this problem were based on periodic synchronous approaches, which require time synchronization and are not suitable for events-driven applications. We propose a QoS-oriented events-driven...
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