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Nowadays, wireless sensor networks attract researchers because of their popular applications in the military, communications, intelligence and medical aspects of vitality. Wireless networks can provide solutions to a lot of major problems in the world as they are low-cost, limited energy services, and there must be mechanisms to raise the efficiency of energy consumption to ensure a long lifetime...
In current scenario wireless sensor networks can be used in several areas like disaster management, intelligence surveillance and border security and so on. Wireless sensor networks (WSNs) are recognized as crucial and critical way to facilitate computing environment in effective and efficient manner for numerous applications. The most considerable constraint in wireless sensor network is limited...
In Wireless Sensor Network (WSN), sensor nodes are densely deployed over the region to monitor the environmental conditions like Temperature, Pressure, Sound, Vibration and Light. These networks are widely used in various fields such as medical, industrial monitoring, building and home automation or military surveillance. Sensor nodes in WSN continuously transfer the sensed information to Base Station...
The wireless sensor network is designed to install the smart network application or network for emergency solution, where human interaction is not possible. WSN consists of many sensors to monitor physical or environmental conditions, such as health state monitoring, military applications, temperature, sound, pressure, motion or pollutants and to cooperatively transfer the data through network to...
Wireless Sensor Networks (WSNs) consists of sensor nodes that are battery powered, these nodes are often deployed in remote areas and left unattended for long periods between battery charges. According to the studies, over sixty percent of energy is consumed during the transmission and reception process of the network. Due to the reason stated above, protocols and algorithms have been designed to...
The energy efficiency is one of the important factors to prolong wireless sensor networks (WSNs) lifetime. One way to achieve the energy efficiency is by minimizing the energy dissipation during event capturing i.e. sensing an event and during event transmitting. This paper presents an energy efficient as well as reliable event transmission protocol (RE3TP) for event driven WSNs. RE3TP consist of...
Wireless Sensor Network (WSN) is an ad-hoc network consisting of sensor nodes having limited computational power fitted with a radio transceiver. Main constraint of a sensor node is the limitation of its energy resource in the form of a short battery life. Battery power conservation is very important in a sensor device since battery life is usually one of the critical componets in extending the life...
Energy efficiency and maximizing network lifetime are some important items in wireless sensor networks design. In this article, we proposed an efficient utilization to not only reduce consumption energy in network but also increase lifetime of the network In our design we used cooperative scheme to save more energy compared with direct transmission. The processed data from cluster head which is the...
Sensor Nodes (SN) represent a tiny, inexpensive and main constituent part of Wireless Sensor Networks (WSN). As the main source of power supply of SNs is usually battery, which have a strictly limited capacity, the battery life extension is the main driver for energy-efficient WSN design. So, the crucial parameter for energy-efficient applications in WSN is to apply the techniques that greatly reduce...
Energy proficiency is an essential feature to intend an extensive existence wireless sensor network. More than a few methods have been proposed to boost the battery lifetime of sensor nodes. One of the methods is clustering approach which consists of two ways: selecting cluster heads with more residual energy and rotating cluster heads periodically from cluster to cluster thus extends the network...
Wireless sensor network (WSN) is one of the most emerging technology which consists of large number of sensor nodes with each having the capacity to sense, compute and communicate the data. WSN has great deal of applications in various fields like military, agriculture, industry healthcare etc. Sensor nodes are randomly and densely deployed. This kind of deployment creates large number of redundant...
In this paper, we consider the problem of maximizing the lifetime of a sensor network in which the sensors nodes are equipped with dissimilar amount of energy. Here we propose a network model in which the node heterogeneity in term of energy has been incorporated. The proposed network model contains three tier node heterogeneity namely, tier-1, tier-2, and tier-3 heterogeneity. We deploy the nodes...
The main problem in Wireless Communication Networks in the field nodes is that the battery resources are constrained. In multi-hop network, if one of the nodes is switched off due to low battery power, the network is disconnected and the field information could be lost. While energy efficiency of communication protocols tries to ensure extended network lifetime, but battery drainage problem still...
The cost of health care in first-world countries is increasing dramatically as a result of advances in medicine, a population that is becoming older and an increasingly unhealthy lifestyle. Personal health care concepts where sensors within and around the body monitor and measure all kind of physiological signals can be an addition to medicare with high benefits. This concept allows patients to stay...
Wireless sensor networks are a family of networks in wireless communication system and have the potential to become significant subsystem of engineering applications. In view of the fact that the sensor nodes in wireless sensor networks are typically irreplaceable, this type of network should operate with minimum possible energy in order to improve overall energy efficiency. Therefore, the protocols...
Multiple Channel Design (MCD) has been adopted widely in wireless networks to increase throughput and reliability with relatively less energy consumption. Due to physical restrictions of sensor nodes, applying multiple radio channels in sensor networks poses significant challenges, particularly on energy consumption. To address such challenges, we propose an energy-aware MCD scheme called SmartChannel...
In this paper, a novel secure routing protocol is proposed for wireless sensor networks in which sensor nodes as well as the base station are mobile. The protocol achieves security property through symmetric key cryptography and threshold key cryptography. An analysis of the security strengths of the protocol is presented. Simulation results show the throughput of the proposed protocol and a comparison...
Wireless Sensor Networks (WSNs) consist of small nodes with sensing, computation and wireless communications capabilities. These sensor networks interconnect a several other nodes when established in large and this opens up several technical challenges and immense application possibilities. These wireless sensor networks communicate using multi-hop wireless communications, regular ad hoc routing techniques...
This paper studies energy-efficient resource allocation schemes in Wireless Sensor Network (WSN) where sensor nodes are densely deployed on the network with infrastructure support. We first construct a network scheme and compute the energy consumption with no intelligent resource management scheme for a given quality-of-service constraint defined as Signal-to-Interference-plus-Noise Ratio (SINR)....
Wireless sensor networks are developed to be applied in hazardous or inaccessible places, where hundreds to thousands of sensor nodes are uniformly distributed for long-term data. It has been proved that, to maximize network lifetime, the best position for a sink is the center of the circular deployment area. However, the featured communication pattern, converge cast, brings unbalanced spatial distribution...
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