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.
This paper proposes a group-based emergency guiding system for mobile users using smartphones, called Go FAST, which can model the spatiotemporal mobility of indoor people. A dedicated path can be determined to provide the shortest evacuation time for each group of nearby people. The Go FAST system considers the corridor capacities and lengths, exit capacities, concurrent motion, distribution of indoor...
Wireless sensor networks (WSN) provide attractive solutions for data exchange in a variety of applications from military surveillance to medical and environmental monitoring. The commonality in all such applications is that the data collected in some nodes of the network is needed at some other nodes, for instance in a data collector node. The nodes are typically limited in terms of power, memory,...
Transient departure process of outgoing packets in a node of a wireless sensor network with energy saving mechanism based on threshold activation of the radio transmitter/receiver is investigated. A finite-buffer queueing system of the GI/M/1-type with N-policy, in which the transmission after each idle period is being initialized only after reaching a threshold of N packets waiting in the buffer,...
This paper introduces the design of a distributed wireless tree-like data acquisition system based on ZigBee, including its composition and the topological structure of ZigBee network. An industrial information transmission system based on ZigBee technology with CC2530 chip is designed. In this paper, every part of the hardware connections and software design will be introduced overall framework of...
In recent years, home ICT services have been actively proposed. To realize the services, power consumption of sensor station increases when a sensor station often wakes up to report sensor data. In this paper, we proposed an application-aware power-saving control method for sensor stations and confirmed an effect of a proposed method which is constructed as OSGi bundle in HGW. By using the proposed...
The vehicle has no parking assist system and takes much time to wander around aimlessly to find parking spaces near the destination. In recent years, how to help a driver find parking spaces by the Vehicle Ad Hoc Networks (VANETs) is an important problem. This paper proposed a novel direction-base recommendation algorithm (DRA) to reduce both the search time for parking and the competition of parking...
Wireless sensor network (WSN) is made up two or more interconnected sensor nodes wirelessly. These nodes may be deployed either in open or closed environment. As these nodes communicates wirelessly and deployed in open environment there are always threat of security of nodes as well as data communicated. In order to making secure communication over WSN there should be some security mechanism. In this...
Wireless sensor networks (WSNs) have received lots of attention in recent years. WSNs have been applied to multiple fields such as video surveillance, home automation, and health care. How to efficiently manage WSN devices thus becomes an important issue. Simple Network Management Protocol (SNMP) is an IP-based network management protocol which can collect and modify management information from network...
Establishment of pairwise keys in wireless sensor networks is a fundamental security service, which forms the basis of other security services such as authentication and encryption. However, due to the resource constraints on sensor nodes, establishing pairwise keys in wireless sensor networks is not a trivial task. For the existing key pre-distribution schemes, as the number of compromised nodes...
The objective of Synchronization In wireless sensor network is to synchronize the various sensor nodes which are distributed as well as moving in a network. Synchronization is an important problem in communication networks especially for real time applications. There may be one base station of 1000 sensor nodes moving in the network. Synchronization is considered a particularly difficult in wireless...
Mobile business (m-business) could be described as the utilization of mobile technologies to maintain, improve or extend existing business processes. It is allowing people to make the best use of business opportunities. However, most of the current m-business models are simply an extension of traditional e-business models to support wireless networks. Being not designed for mobile applications essentially,...
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.