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A critical issue in wireless sensor networks is an energy-efficiency since the sensor batteries have limited energy power and, in most cases, are not rechargeable. The most practical manner relate to this issue is to use a node wake-up scheduling protocol that some sensor nodes stay active to provide sensing service, while the others are inactive for conserving their energy. Especially, CTC (Connected...
An energy-efficient data collection protocol for wireless sensor network based on tree (EEDCP-TB) is proposed in this paper. EEDCP-TB constructs data collection tree through the method of flooding avoidance and use the cascading timing scheme to allocate aggregation time in order to save node's energy; further more, this protocol introduce the node energy state parameter to meet energy balance to...
Sensor Networks consist of massively distributed, small devices that have some limited sensing, processing, and communication capabilities. Due to the design of the topology of Sensor Networks, supporting energy-efficient routing protocol in the sensor networks is a challenging task. In this paper, we propose a Density and Distance based Cluster Head Selection (DDCHS) algorithm. The proposed algorithm...
Clustering is one of the most popular approaches used in wireless sensor networks to conserve energy and increase node as well as network lifetime. In this paper we have analyzed the affect of confinement of event field within the sensor field on network lifetime and network energy consumption for cluster-based wireless sensor networks based upon LEACH protocol which is among the most popular clustering...
Energy efficiency is one of the most important issue to be tackled in wireless sensor networks. Activity scheduling protocols aim at prolonging the network lifetime by reducing the proportion of nodes that participate in the application. Among the vast range of criteria existing to schedule nodes activities, area coverage by connected sets is one of the most studied. Active nodes must ensure area...
The wireless sensor network is characterized by its density in number of deployed sensors. In reality, sensors in the same region collect and forward, in general, the same information. In order to conserve nodes energy, it is necessary to keep active a set of nodes while others can sleep. In this paper, we present a new topology control protocol (GECP) for wireless sensor network that extends the...
Clustering is one of the most popular approaches used in wireless sensor networks to conserve energy and increase node as well as network lifetime. LEACH is among the most popular clustering protocols proposed for wireless sensor networks. In this paper we have carried out network lifetime and energy consumption analysis for cluster-based wireless sensor networks based upon LEACH protocol for periodic...
Effective utilization of limited power resources by the sensors is pre-eminent to wireless sensor networks. Organizing the network into balanced clusters based on assigning equal number of sensors to each cluster may have the consequence of unbalanced load on the cluster heads. By-product of this is unbalanced consumption of energy by the nodes which leads to minimization of network lifetime. We put...
A fundamental issue in wireless sensor network is to extend network lifetime while maintaining network coverage and connectivity. Protection for sensors themselves is another important concern. An energy-aware coverage based node scheduling scheme (ECNS) is proposed to provide protection for sensors and guarantees network connectivity and desired coverage level. ECNS enables each node to decide whether...
Wireless sensor networks (WSN) with hierarchical organizations have recently attracted a lot of attention as effective platforms for pervasive computing. With power efficiency and lifetime awareness becoming critical design concerns, a significant amount of research has focused on energy-aware design of different layers of the WSN protocol stack. However, much less has been done in way of incorporating...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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