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.
Intra wireless body sensor network (Intra-WBSN) is typically a short range wireless health monitoring network, consists of wearable or implant bio-sensor nodes which collects the patient's physiological signals and forward to patient monitoring systems. Network lifetime maximization and energy efficiency of the network have significant attention for current research. Recently cost-function based multi-hop...
In Wireless Sensor Network, sensor nodes are low powered and small devices mainly deployed in critical regions. Due to their energy constraint issues, many routing algorithms have been developed for efficient forwarding of data for minimizing energy consumption. Considering the static sink, nodes near the sink will have more load for routing data, therefore sink has been made as mobile. Now the sink...
In this era of wireless communication, Wireless Sensor network (WSN) has drawn considerable attention to the researchers. This paper proposes a new scheme of energy efficient routing technique in WSN for surveillance of agricultural field from a distance place. In this scheme, a crop field is equipped with different types of sensor nodes with limited power source, placed randomly for sensing various...
In the last few years Ambient Assisted Living (AAL) has come up a long way with numerous innovative ideas to cater to the growing elderly population of the society. With a perfect combination of tools and technology leading to ubiquitous or pervasive computing, data can be sensed, and transmitted from patients at home to healthcare professionals for quick monitoring and taking necessary actions, if...
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 Body Area Networks (WBANs) is one of the most promising approaches for improving the quality of life, by allowing remote patient monitoring and other ubiquitous health monitoring applications. In this type of networks, traffic routing plays an important role, which collects the information from bio sensors and sends it towards the sink. Some data are very critical under certain situations...
Sensor network is an adaptable technology for perceiving environmental criterions and hence finds its pivotal role in a wide range of applications. The applications range from mission critical like military or patient monitoring systems to home surveillance systems where the network may be prone to security attacks. The network is vulnerable to attack as it may be deployed in hostile environments...
Optimized Link State Routing (OLSR) is a standard proactive routing protocol for Wireless Sensor Network (WSN). OLSR uses two kinds of the control messages: Hello and Topology Control (TC). As these messages are un-authenticated, OLSR is prone to several attacks namely, black hole, wormhole, Gray hole etc. This paper is focused at Sleep Deprivation Torture Attack on OLSR. Sleep deprivation attack...
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 be more suitable for underground coal mine tunnel, network models for chain-type wireless sensor network are built, and a 3D uniformed network deployment method is proposed firstly in this paper. Then, a zoning method composed of energy balance strategy and cluster head election strategy is discussed, which is quite different from the commonly used hierarchy and cluster strategy. Finally,...
This paper investigates solutions for the delay-constrained least-cost (DCLC) paths problem in low duty-cycled sensor networks where nodes asynchronously sleep most of their time. Solving DCLC problem in sensor networks is very challenging not only because of its NP-Completeness, but because of the stringent network resources. We propose an approximated DCLC routing algorithm, called ADRA, which distributively...
Wireless Sensor Networks (WSN) consist of spatially distributed sensor to monitor physical or environmental conditions and cooperatively pass their data to a central location. Such networks become importance due to its potential to transform many segments of our life from ecological monitoring and maintenance to computerization in traffic surveillance and healthcare commerce. The design, implementation...
this paper addresses the efficient consumption of wireless sensor nodes¡¦ battery energy for sensor data collection in a large-scale wireless sensor network. In a large scale deployment of sensor nodes, nodes require a significant fraction of battery energy for establishing and maintaining sensory data routing path from each node to a base station or sink node. In order to reduce the energy dissipation...
In order to improve energy efficiency in wireless sensor networks (WSNs), an unequal clustering algorithm based on virtual blocks (VBUC) is proposed. Firstly, the monitoring area is divided into several virtual blocks (VBs) in VBUC. According to the principle of energy minimization, the optimal number of cluster heads (CHs) is calculated to control the number and the size of the VB. Secondly, the...
Wireless Sensor Networks (WSNs) have inherent and unique characteristics rather than traditional networks. They have many different constraints, such as computational power, storage capacity, energy supply and etc. Energy aware routing protocol is very important in WSN, but routing protocol which only considers energy has not efficient performance. Therefore considering other parameters beside energy...
In this paper, we propose a dynamic route construction method based on measured characteristics of radio propagation in a real environment. Our method first measures characteristics of radio propagation for each link, and determines a communication route from every node to the sink node and its transmission power based on the measured characteristics. While operating the system, our method dynamically...
Nodes in Wireless Sensor Networks are typically considered to be energy constrained, small in size, with little processing power and limited battery energy storage. In order to increase performance of sensor nodes in a network, either the energy of the nodes must be increased or its operational efficiency must be increased. A key operational factor is the routing protocol. Augmentation of the energy...
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...
In this paper we propose a QoS based routing protocol for wireless sensor network applications that support both periodic and event-based data reporting. A geographic routing mechanism combined with QoS support is used to forward packets in the network. Data is routed based on the packet type. To route packets with different priorities, multiple transmission queues are used. In choosing the next hop,...
Energy efficiency has been known as the most significant problem in all facets of the wireless sensor network operations. For large scale WSN deployed in the battlefield it is necessary to consider energy depletion imbalance, extra overhead and delay brought by the increase of the hop number when designing energy-aware routing scheme. This paper presents a novel routing scheme (Cooperative Robust...
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.