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.
Spontaneous progress in the field of wireless sensor networks (WSN) have led to development of various protocols for reliable communication and increasing longevity of the network. While designing the protocols for WSNs, designers come across the issues like limited energy per node, limited bandwidth for communication, security, minimum communication and computational cost. This paper focuses on energy...
Geographic Routing is suitable for the limited resource in wireless sensor networks and Ricci flow-based methods have been employed. Unfortunately, iterative process through previous methods may spend abundant energy in order to discovery route, which obviously effect their advantageous of this sort of schemes. In this paper, we focus on avoiding unnecessary iterations and propose an algorithm through...
Wireless Sensor Networks (WSNs), the major technique in the sensing layer of Internet of Things. Because the WSN is extensively regarded as a data-centric network, more and more researchers start to exploit information-centric networking (ICN), a major branch of future network architecture, to design WSNs. In this paper, we propose a collaborative caching strategy for information-centric wireless...
In recent past, researchers have shown a lot of interest in Under Water Sensor Networks (UWSNs) because of its application in wide range of domains. UWSN, actually a sub body of Wireless Sensor Networks (WSN), facilitate with radio communication with high-precision of information to a sink node from any of the source node. The Role of any-casting is of significant importance in the context of routing...
With the advancement of technology, a surge of research interest in cognitive radio based networks in smart communities has been mounting. It is anticipated that CR-enabled networks will play a vigorous role in the enrichment of communication efficiency in neighborhood sensor area network. This paper presents a framework for Cognitive Radio based event anomaly detection mechanism. A skeleton for intelligent...
Due to the concept of smart city being gradually prevailed in recent years, the wireless routing algorithm for Low-Rate Wireless Personal Area Networks is an important research for data collecting network, which is used for managing and collecting sensing data in the city. Chiu and Chen proposed an adaptive link-list routing algorithm with wormhole mechanism. The algorithm is a low collision wireless...
In nigh application, it is indispensable to discover or supervise the behavior of the surrounding situation at a fine resolution over large spatial-temporal scales therefore WSN (Wireless Sensor Network) is well-advised. Because of smaller size and low power requirement of sensor device use of WSN for watching the surrounding action is increased time to time. Numeral of sensor inside WSN is proportionate...
In this article, we consider software-defined wireless sensor networks (SDWSNs) and propose a scheme for sleep scheduling with low control overhead-based flow-entry in flow-table to overcome the limitation of control traffic in SDWSNs.
In applications of Wireless Sensor Networks (WSNs), all data packets are directed towards a single base-station (BS) over multi-hop routes. The BS is usually responsible for processing the collected data and interfacing the WSN to remote users. The continuous flow of packets towards the BS enables the adversary to analyze the traffic and uncover the BS position. In this paper, we present a technique...
Smart lighting is an illumination technology designed for energy efficiency. This may include high efficiency features and automated controls that make adjustments in light intensity based on conditions such as availability of daylight or occupancy. Lighting is an application of light to realize both appeal and visual comfort. Nowadays, modern systems are able to reproduce intensities and pivot on...
In wireless sensor networks (WSNs), efficient use of the nodes' available energy is the main goal which most of the routing protocols seek to achieve. In fact, clustering based routing protocols have gained vast approval due to its merit of less energy exhaustion. The expended energy by one cluster is divided into two main terms, namely, the expended energy in intra-cluster communication (Intra-term)...
In this paper, a communication load balanced dynamic topology management algorithm (CLB-AODV) is proposed to extend the wireless sensor network (WSN) lifetime via managing the participation in communication process among all nodes in the network. The idea is that, each time there is a failure in the network topology; the topology is adjusted only on-demand by choosing the best path according to paths...
Browser based simulators for wireless networks remain an unheard concept. Although wireless networks are utilized in various applications and are providing the backbone for the Internet of Things (IoT), it remains fairly difficult to quickly prototype a visualization. The need for an easily accessible simulator is a necessity, sparked by the alarming growth of sensor networks and the IoT. The development...
IN OUR talk we will focus on networks with no predefined infrastructure (ad-hoc networks, sensor networks, vehicular networks). There are many optimization problems derived from the context of such networks including power assignment mechanisms, scheduling, data gathering, etc. We will discuss various techniques tacking these problems emphasizing the importance of mobile nodes locations and its influence...
Handling the security in Wireless Sensor Networks (WSNs) requires cryptographic mechanisms to detect faulty and unstable nodes that lead to the inactivity of network during packet travelling. Although, cryptographic security mechanism operations demand a high calculation of computational time and memory resources, while the sensor nodes have low memory and low computation capability. Alternatively,...
Wireless sensor networks (WSNs) are widely used nowadays in various domains. In general, the applications in which the WSN is deployed need that this network presents a minimal degree of reliability, effectiveness and robustness. However, the specificity of the nodes deployed in this type of networks makes them prone to failures. In this paper, we discuss the recovery from simultaneous failures for...
This paper presents a time division multiple access MAC protocol that is specifically designed for applications requiring periodic sensing of the sensor field. Numerical analysis is conducted to investigate the optimum transmission scheduling based on the signal to interference-noise-ratio (SINR) for ground level propagation model applied on wireless chain topology. The optimised transmission schedule...
Real-time target search path planning is a ubiquitous problem present in various areas such as search and rescue, military, and security. In this paper, we consider a search for a static target and a moving target in an unknown environment full of obstacles. The knowledge of target location or direction is obtained by time sets recorded by each sensor node to specify the time instances that the target...
ZigBee network can be configured as three main topologies such as star, tree or mesh topology. The main objective is to have low power consumption and high channel utilization, impact of MAC parameters such as beacon order (BO) and super frame order (SO) for star, tree and mesh topology in beacon disable mode and beacon enable mode by varying CBR traffic loads. The reactive protocol such as AODV (Adhoc...
In this paper, a fully differential low voltage folded cascode CMOS low noise amplifier for zig-bee based applications in wireless sensor networks is presented. The noise figure can be reduced by various gain enhancement techniques of folded cascode LNA. By using capacitive cross coupling technique for LNA, enhancement in trans conductance and linearity of common gate topology can be achieved. The...
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.