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The rapid development in communication approach has brought out new mode of communication. Among the recent developments, adhoc network has emerged as new mode of data communication. The objective of link reliability is a major concern in such network. In this paper, a new approach to route discovery based on network power and operational characteristic is proposed. The approach suggested, results...
In corona-based Wireless Sensor Networks (WSNs), nodes that are positioned in coronas near the sink drain their energy faster than others as they are burdened with relaying traffic come from distant coronas forming energy holes in the network. This situation shows significant effects on the network efficiency in terms of lifetime and energy consumption. The network may stop operation prematurely even...
Given the fact that LEACH protocol didn't take the residual energy of nodes into account when choosing the cluster heads, which may result in the node with rather low energy to be chosen as a cluster head. Thus, it will cause the cluster created by this low-energy node to be dead at an early stage, which wastes the whole network's resource. Here in this paper, we introduced an energy factor when choosing...
Secure data collection is an important problem in wireless sensor networks. Different approaches have been proposed. One of them is overhearing. We investigate the problem of constructing a shortest path overhearing tree with the maximum lifetime. We propose three approaches. The first one is a polynomial-time heuristic. The second one uses ILP (Integer Linear Programming) to iteratively find a monitoring...
Extended network lifetime and load balancing are important requirements for many WSN applications. There are many clustering routing schemes for homogeneous proactive and reactive WSNs but they suffer from the problem of uneven load distribution and back transmission. This paper presents an energy efficient load balanced clustering scheme with away cluster head (ACH) scheme and free association mechanism...
Wireless sensor networks consist of spatially distributed sensor nodes, which can sense the environment by collecting, processing and transmitting the data to sink node. A critical issue in wireless sensor networks since most sensors is equipped with non-rechargeable batteries. The lifetime of a sensor network can be extended by jointly applying different techniques of scheduling and routing schemes...
Uniform load distribution is a major challenging area in wireless sensor networks. Sink mobility strategy achieves great success in uniform load distribution policy. In optimal sink mobility scheme, main problem is optimal path construction for sink movement with minimum message overhead. This paper reports an optimal path construction strategy for mobile sinks movement in wireless sensor network...
In order to meet the requirement for beach monitoring system, multi-path routing LHMR algorithm is designed to maximize network life. In the monitoring system with heterogeneous sensor network, LHMR algorithm consists of three parts: routing path creation, data transmission and routing path maintenance. Hop size is considered as one factor to decide the probability of path selection for data transmission...
This paper attempts to undertake the study of maximizing the lifetime of Heterogeneous wireless sensor networks (WSNs). In wireless sensor networks, sensor nodes are typically power-constrained with limited lifetime, and thus it is necessary to know how long the network sustains its networking operations. Heterogeneous WSNs consists of different sensor devices with different capabilities. We can enhance...
Wireless Sensor Networks (WSN) are low power networks which have many small nodes. The nodes are low power sensors interconnected to each other to receive and transmit data from source to sink. By the transferring of data, the power of these nodes reduces and eventually the system dies. In this paper we introduce an efficient load sharing routing technique to increase the life time of all the nodes...
Recently many Wireless Sensor Network (WSN)-based agriculture monitoring systems have been implemented mostly for developed countries. WSN in these monitoring systems uses tree topology and multi-hop dynamic flooding routing protocol that are not energy efficient and has a single point of failure. Though some protocols use zone-based routing they consider that a large number of sensors are deployed...
In Wireless Sensor Networks increasing the network life time without the possibility for replacing and recharging the batteries of a node for a long period is one of the challenging issues. Usually network level issues are considered to overcome this, but here we are considering node level energy conservation which will be more efficient when compared to that of network level. In this paper we are...
This paper focuses on the theoretical aspects of clustering in wireless sensor networks, as a mean to improve network lifetime. We investigate whether clustering itself (with no data aggregation) can improve network lifetime in particular application when compared to non-clustered networks. We use integer linear programming to analyse 1D and 2D networks, taking into account capabilities of real-life...
Increasing a functional lifetime of a network is utmost important criterion in Wireless Sensor Networks (WSNs) because of limited energy resource of nodes. Since, a functional lifetime requires either all or a certain percentage of nodes to be alive altogether, energy consumption balancing is important. Energy consumption balancing (ECB) property ensures that the average energy dissipation per sensor...
Since we are not able to replace the battery in a wireless sensor network, energy and lifetime are the most important parameters. Common sensors are not able to connect directly with the central station due to their limited ranges in asymmetrical wireless networks, therefore, we utilize super nodes. A super node has more energy, processing power and a wider range of communication. It does connectivity...
Wireless Sensor Networks(WSN) is a hot spot of the research of wireless networks currently, the key of achieving efficient transmission business is to control node energy and improve the network lifetime in wireless sensor networks. The paper first uses Boolean sensing model based on Poisson point process to identify the function of the rate of coverage and the node density in unit area, and then...
Due to power limitation of nodes in wireless sensor networks (WSNs), how to maximize network lifetime has become a critical issue for deployment of WSNs. Although several schemes have been proposed for 2D WSNs, few for 3D WSNs are known. In this paper, we present a scheme for maximizing network lifetime in 3D WSNs through balancing energy consumption, as an extension of the existing scheme for 2D...
This paper mainly studies mobile sink-based data gathering protocol, according to mobile wireless sensor network model, adopts a joint strategy of sink mobility and routing to realize high-efficient data gathering based on which nodes in network are divided into certain number of clusters, demonstrates that in the square monitoring area with any side-length L, the minimum energy consumption of the...
In the last years the number of papers related to wireless sensor networks has increased substantially. Most of them focus in raising issues as routing algorithms, network lifetime, and more recently, Multiple Input Multiple Output wireless networks. In contrast with all those studies, we present a practical application of wireless networks: The sensing of the pH and temperature for a fish farm. The...
Mobile ad hoc network is a special peer-to-peer network with a wide range of application that has no infrastructure, multi-hop, self-organizing, dynamically reconfiguration and mobile. People are now paying more and more attention to the using of ad hoc network in the emergence area such as battlefield and disaster rescue. The research on its energy and security are one of the most important aspects...
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