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WSN (Wireless sensor network) comprises of large number of tiny, inexpensive, computationally capable and energy constrained nodes that find use in various surveillance and monitoring applications. Data sensed by these nodes is transfused to the base station using various routing procedures. The pivotal issue in wireless sensor networks is of lifetime and energy conservation as the sensor nodes' energy...
Hierarchical routing is an efficient way to lower energy consumption within a cluster, performing data aggregation and fusion in order decrease the number of transmitted messages to the BS. In this paper, a novel hierarchical approach called distributed energy efficient adaptive clustering protocol with Data Gathering (DEACP) is proposed for Wireless sensor network. Since nodes in a sensor network...
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...
A wireless sensor network (WSN) consists of a lot of inexpensive sensors that have a limited energy resource. Many applications including environment monitoring use a clustering approach for efficient energy consumption. LEACH (Low Energy Adaptive Clustering Hierarchy) is the most famous one of clustering protocols, which enables the balanced consumption of energy to prolong network lifetime. In LEACH,...
WSNs (wireless sensor networks) are networks that hundreds or thousands of nodes poured in a field and nodes try to send sensed event to base station (BS). In many cases, the BS isn't in the field and is so far away from nodes. Energy efficiency is one of the major concerns in wireless sensor networks since it impacts the network lifetime. So instead of transmitting directly to BS, in hierarchical...
The recent interest in Wireless Sensor Networks has led to a number of clustering algorithms that use the limited energy available at sensors more efficiently. In this article, we present a heritable clustering algorithm based on HEED for low energy wireless sensor network. It brings in appointment mechanism to reduce the cluster head reelect overhead efficiently. In the cluster, TDMA communication...
This paper proposes a new MAC protocol applied for a new kind of data collection applications that use a wireless sensor network employed with one unmanned aerial vehicle (WSN-UAV). In this protocol, the sensors are classified in different groups based on priorities and communicate with the UAV by a CDMA-based transmission scheme. The Prioritized Frame Selection based CDMA MAC protocol (PFSC-MAC1)...
This work presents a distributed time slot assignment algorithm which adopts TDMA as Medium Access Control, specially suited to support applications with strict delay, jitter and throughput requirements characterized by convergecast traffic patterns in sensor networks. (E.g. wireless video surveillance sensor networks). Our algorithm has three characteristics: (1) Every node is guaranteed a path to...
Wireless sensor network consists of hundreds or thousands of tiny sensor nodes, which can monitor remote environment and it's useful in military and civilian applications. The limitation of the batteries of sensor nodes necessitates that the energy efficiency is a key issue in WSN. We proposed a novel protocol LEACH-L based on the geographical location of nodes, which improves the LEACH on its clustering...
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