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.
Energy conservation is one of the most important factors in Wireless Sensor Networks (WSNs) for reliability since nodes have limited resources of energy. There is a need to design such routing protocols, which efficiently use available energy and prolong network lifetime and stability period. We implement sink mobility in Clusterless Stable Election Protocol (CL-SEP) and proposed Tunnel Routing Protocol...
Wireless sensor network is an important part of the Internet of Things. Preservation of privacy and integrity in wireless sensor networks is extremely urgent and challenging. To address this problem, we propose in this paper an efficient and secure range query protocol in two-tiered wireless sensor networks introducing master nodes. Our proposal not only prevents adversaries from gaining sensitive...
Node localization of wireless sensor network is a hot topic, but current algorithms of 3D wireless sensor node localization are not accurate enough. In this paper, the DR-MDS algorithm is proposed, DR-MDS algorithm mainly calibrates the coordinates of nodes and the ranging of nodes based on multidimensional scaling, it calculates the distance between any nodes exactly according to the hexahedral measurement,...
Network node positioning technology is one of the important supporting technologies in the practical application of wireless sensor. In order to overcome the measurement error of the least squares method for wireless sensor networks (WSNs) node affect their positioning accuracy, an improved positioning algorithm least squares(LS) is proposed. In order to obtain the optimal reference node, the algorithm...
Wireless sensor networks have attracted great interest in the last decade, and have provided solutions in a growing number of applications. The location of sensors is a major issue in these networks. Many localization algorithms have been proposed and can be categorized into two families: range-based and range-free algorithms. In this paper, the localization algorithm DV-Hop is improved in order to...
The WSNs are developed to sense, gather, process and transmit the real-world information and so in recent years, solving numerous challenges of wireless sensor networking are considered intensely. In this paper based on compressive sensing two frameworks denoted as IndM and ECM are proposed to compress and reconstruct the signals of the sensors even for networks which the data transmission is imperfect...
Distributed wireless sensor networks, which are consisting of several single sensors, are becoming very popular in many important applications. This paper talks about collaborative algorithms which are implemented on WSN in order to find the location of sound source. In this paper, an algorithm is discussed for each node and a collaborative algorithm is proposed for sink node. The algorithms are designed...
In this paper, we propose binary particle swarm optimization (BPSO) algorithm for distributed node localization in wireless sensor networks (WSNs). Each unknown node performs localization under the measurement of distances from three or more neighboring anchors. The node that gets localized during iteration will be used as a reference for remaining nodes. A comparison of the performances of PSO, basic...
Optimization of flows to maximize Wireless Sensor Network (WSN) lifetime is a problem already investigated in various aspects. However, most studies ignored the effects of finite bandwidth. As source data rate of sensor nodes increases, flow patterns that balance energy dissipation optimally might need more bandwidth than available. As a result, ignoring bandwidth limitations may lead to infeasible...
Recently, wireless sensor networks (WSNs) has been widely recognized as a promising technology in latest development in green buildings communications. Localization is one of the fundamental issues in wireless sensor networks. The accuracy of estimated positions can be significantly helpful to use in an intelligent e-applications. In this paper, we propose a fast and efficient localization scheme...
Wireless sensor networks (WSNs) provide a cost-effective platform for monitoring phenomena of interest at fine spatial and temporal resolutions. In this paper, we consider the application of monitoring power usage in an office environment at the resolution of individual users. A key challenge in this context is how to extract meaningful profiles of user behaviour in the large volume of monitoring...
Data gathering is one of the most popular applications in multi-hop wireless sensor networks. Since resources are limited, it is important to efficiently allocate the resource while providing desired performance. In this paper, we consider resource allocation in the uplink of multi-hop wireless networks with the use of data buffers of finite size in the presence of transmission error. We first analyze...
Wireless Sensor Networks (WSNs), comprising of tiny nodes with limited energy, computational and communication resources, are being widely used in various application areas ranging from pollution and weather monitoring to military. Even though every application may not require data to be exchanged in a secure manner, few WSN applications may have certain security requirements. The data is encrypted...
The main objective of this paper is to evaluate the network performance of a cooperative diversity-based wireless body area network (WBAN) by using (2,2) Alamouti's space-time block code (STBC) with pre-coding scheme (STBC-PC) and a relay selection procedure (RSP). The considered WBAN model is served for healthcare service in order to mitigate the undesired effects of WBAN due to high path loss and...
Wireless sensor networks are associated with risk due to the threats of security vulnerabilities. In this context, we propose a scheme, which uses random key distribution based Artificial Immune System (AIS) for detecting spoofing attacks. The prospective method is for clustered sensor networks and as an example, the algorithm is executed on LEACH protocol. The simulation results prove that the design...
Quality of service metrics is one of the vital concerns in wireless sensor network, which is improved by hierarchical clustering algorithms. In this paper discussion of EEICCP (Energy Efficient Inter Cluster Co-ordination Protocol) which adopted a layered approach for the clusters and communication among the clusters through cluster heads and cluster coordinators is prepared. We investigate the impact...
This paper proposes a modified communication protocol that uses the knowledge of channel states to transmit packets. It shuts off the energy expensive acknowledgement operation during good channel state while uses all its retransmission attempts in bad channel state to deliver the packets through the channel. The impact of this protocol has been directly studied on the coin cell batteries that are...
This paper proposes a new dynamic strategy for selecting the optimal cluster head in Stable Election Protocol (SEP). The proposed strategy selects a node as cluster head if it has the maximum energy among all the available nodes in that particular cluster. The maximum energy is that which is calculated at running time of the WSN. The proposed strategy considers heterogeneous nodes and divides nodes...
Since sensor nodes are powered by battery and in most situations, they are deployed in a hostile environment, where it is very difficult to change or recharge their batteries in Wireless Sensor Networks (WSNs). So energy efficiency is a central challenge in WSNs. The radio is a major contributor to overall energy consumption of nodes. Due to limited energy supplies, reducing energy consumption is...
Coverage is a vital issue that ensures that basic functions are available in wireless sensor networks (WSNs). These functions provide communications during emergency rescue or in war environments. Sensor nodes must be dispersed and survive in place for a long time in order to accurately monitor all events. However, sensor nodes rely on limited battery energy restricted to the lifetime of the entire...
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.