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Pervasive computing is a rapidly developing area of Information and Communications Technology (ICT). It refers to the increasing integration of ICT into people's lives and environments, made possible by the convergence of advanced electronic - and particularly, wireless - technologies and the Internet. Wireless technologies are expected to connect various devices in many potential applications, from...
This paper presents an open testbed for studying the utilization of pervasive computing infrastructure in a city center. It comprises of different types of wireless networks, large public displays, middleware resources and monitoring tools. A set of examples demonstrating the applicability of the testbed in evaluating technology pilots and prototyping new services in authentic setting are presented...
The following topics are dealt with: performance modelling; routing mechanism; distributed systems; parallel systems; service oriented architecture; communication technology; protocols; autonomic network systems; Internet computing; ad hoc networks; wireless sensor networks; privacy management; mobile networks; multimedia systems; pervasive computing; ubiquitous computing; security intrusion detection;...
In this paper, the performance of vehicle to infrastructure (V2I) communications is evaluated based on the IEEE 802.11a protocol at 5.8GHz for ubiquitous transportation sensor networks. The end-to-end delay and fairness are evaluated for traffic information services.
The 2.4 GHz industrial, science and medical (ISM) band is a license free band allocated for a variety of consumer applications: environmental monitoring, agriculture, medical care, smart buildings, factory monitoring and automation, and numerous military applications. This project focuses on the adaptive interference avoidance scheme for IEEE 802.15.4 to allow coexistence with IEEE 802.11b/g in the...
The following topics are dealt with: performance modelling; performance evaluation; routing mechanisms; broadcast mechanisms; distributed systems; parallel systems; service oriented architecture; trust management; agent computing; video communication technology; communication protocol; automatic network systems; advanced network systems; Internet computing; ad hoc networks; wireless sensor networks;...
The following topics are dealt with: ubiquitous computing; mobile social network; pervasive medical sensor network security; EagleVision; pervasive mobile device protection system; wireless sensor networks; secure signature; mobile tetherless VoIP-PSTN gateway; IEEE 802.11; wireless LAN; EcoPlex; MOBIX; mobility management; information exchange; mobile context-aware communication; ZigBee; MediNet;...
As ubiquitous networking emerges, ZigBee devices among various communication devices in the PAN have attracted considerable attention in sensor networks. However, ZigBee devices may significantly experience severe degradation in the presence of WLAN. We propose dynamic clustering schemes of ZigBee networks in order to avoid the WLAN interference. Simulation results show that our proposed scheme is...
Estimating the location of people and tracking them in an indoor environment poses a fundamental challenge in ubiquitous computing. The accuracy of explicit positioning sensors such as GPS is often limited for indoor environments. In this study, we evaluate the feasibility of building an indoor location tracking system that is cost effective for large scale deployments, can operate over existing Wi-Fi...
The fast growing elderly population has rendered a need for cheaper and better healthcare. Answering this call are advances in information technology and medical sciences. At the information technology end, wireless body area networks (WBAN) are being developed to support continuous and ubiquitous monitoring of patients. In our previous work, we identified the importance of the environment in the...
This paper proposes the architecture of a wireless sensor network for remote monitoring of biomedical signals from multiple patients in hospital setting. The system addresses the strict requirements of high-density and moderate-mobility scenarios such as energy-awareness, self-healing, low data delivery delay and transmission reliability. The network is based on IEEE 802.15.4 standard and emerging...
Up to now, Healthcare System has been achieved throughout wired networks. On account of that, both patients and medical teams have needed to put up with all the inconveniences related to time and space. However, the age of the ubiquitous computing has come, and the system that can guarantee portability and mobility for patients and medical teams is required. In this paper, based on PDA and Wireless...
The collaboration of monitoring robot and UFAM (ubiquitous functions activate module) is proposed to achieve automated, wide-range applicable, precise, speedy, and cost-low monitoring and inspection systems. With the advancement of RFID technology, robots are capable of obtaining more intelligence and more flexibility. We have already proposed the idea of the collaboration between mobile robot and...
The following topics were dealt with: advanced communication technology; multimedia wireless LAN; software radio; OFDMA; IEEE 802.16e systems; IEEE 802.11e QoS stations; channel estimation; OFDM; wireless ubiquitous networks; ad hoc networks; automatic Web services; information gathering protocol; mobile communications; RFID; ALOHA; IEEE 802.11n; VisuGATOR; proxy signature scheme; single carrier modulation...
The following topics were dealt with: advanced communication technology; multimedia wireless LAN; software radio; OFDMA; IEEE 802.16e systems; IEEE 802.11e QoS stations; channel estimation; OFDM; wireless ubiquitous networks; ad hoc networks; automatic Web services; information gathering protocol; mobile communications; RFID; ALOHA; IEEE 802.11n; VisuGATOR; proxy signature scheme; single carrier modulation...
In wireless sensor and pervasive networks, multihop networking is expected to be the norm, rather than exception. However, the current paradigm for medium access control (MAC) in wireless LANs/PANs cannot handle the interference issue well and lead to high collision rates in multihop networks, resulting in considerable waste of energy. Also, it is particularly beneficial to employ directional antennas...
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