The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Power consumption of routing protocols is one of the main issues that wireless sensor networks (WSNs) encounter in their lifetime. Low-Energy Adaptive Clustering Hierarchy (LEACH) clustering protocol was introduced to reduce power consumption. However, in LEACH, power consumption increases massively as the distance between sink node and cluster heads (CHs) increases. This drawback introduces distance...
Energy constraint wireless sensor networks area is the most promising research domain today. A dynamic power management technique at operational level can effectively oversee the power consumption and prolong the lifespan of a sensor node. Several stochastic models have been introduced and presented to analyze the system. To improve upon the given models, a semi Markov model with analyser has been...
Wireless Sensor Networks (WSNs) typically aggregate sensed events into a sink by Continuous Monitoring (CM) or Event-Detection (ED). Cluster heads receiving and sending aggregated data have a difficulty in maintaining traditional cluster-based WSNs due to the energy hole problem, which leads to faster energy depletion around the sink. This paper shows how reporting frequency to the sink can be controlled...
Certain Wireless Sensor Network (WSN) applications such as patient monitoring, smart grid, and equipment condition monitoring require accurate estimation of specific WSN parameters such as end-to-end delay, reliability and power consumption. The estimation of these parameters calls for an accurate and lightweight WSN model that is suitable for the low processing capabilities of sensor nodes. In this...
In a typical cluster-based sensor network, the data is usually gathered and fused on cluster heads. In target tracking applications, a target is often detected by sensor nodes in multiple clusters, leading to redundant data transmissions through multiple paths from the cluster heads to the data sink. To reduce such redundant data transmissions and thus to save energy, this paper proposes an adaptive...
In this paper the power consumption possible combinations for a number of loads and a single power source are discussed. The proposed mathematical model depends basically on combinatorics to estimate how many ways are possible to operate different loads powered by a single power source. This paper takes into consideration the different conditions and limitations to operate n number of loads limited...
Wireless Sensor Networks have recently aroused a great interest both from the academic and industrial communities, thanks to the bright perspective they offer in monitoring a broad range of phenomena. Despite some important achievements been reached in studying hardware and networking configurations, the applicative domain of a Wireless Sensor Network has been substantially neglected by the research...
With the rapid development of low power consumption electronics, wireless sensor networks (WSN) are highly investigated and used to improve our life quality. Using piezoelectric materials to transfer the mechanical energy into electrical energy for batteries of WSN in order to extend the life time is the focus in many researches in the recent years. It is important and efficient to improve the energy...
In wireless sensor networks (WSN) data transmission is usually performed by sensors in manner of multi-hop forwarding towards a central static control center (sink). A lot of cheap, low-powered and energy-limited sensors are deployed in the monitored area and some of these nodes closer to the sink node use up their energy more quickly than other nodes because they relay more packets. Although most...
Wireless sensor networks (WSNs) are widely used in detecting, locating and tracking the moving objects. However, some of the cheap, low-powered and energy-limited sensors that are deployed in large areas may use up their energy, which leads to the whole network failure finally. In order to reduce the energy consumption and prolong the network lifetime, (a) a new light-weight and energy-efficient locating...
A study of localization techniques in the wireless sensor network are a subject of the many research team in the world. Most of the solutions propose the optimization in term of the accuracy of the coordinate's assignment improvement. However, the other very important metric considering the energy cost of the localization process also exists, but nowadays there is a lack of this work regarding to...
Recent developments in the field of wireless sensor networks (WSN's) have rapidly positioned this technology as the premier form of variable monitoring. These types of networks maintain important advantages in their field of operation such as reliability, simplicity and ease of installation. However, regardless of these advantages, WSNs face challenges in power consumption. The RF transceiver, the...
This paper focuses on the system identification of the thermal dynamics of a domestic dwelling and the aim of the modelling process is to design an efficient control scheme that minimises energy usage and, consequently, fuel bills. Existing software packages for thermal modelling of structures are based on physical models or finite element analysis and use real data for comparative purposes only....
This paper describes the modeling of a microsensor node dedicated to wireless sensor network applications. The definition of the different node modes is first introduced: wake-up, measure, processing, transmission, reception and sleep. Then, contrary to the literature, a complete sensor node energy model is derived and used to analyze node autonomy. This model allows to estimate the part of each element...
We consider a hybrid wireless sensor network with regular and transmit-only sensors. The transmit-only sensors do not have the receiver circuit (or have a very low data-rate one), hence are cheaper and less energy consuming, but their transmissions cannot be coordinated. Regular sensors, also called cluster-heads, are responsible for receiving information from the transmit-only sensors and forwarding...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.