Results 271 to 280 of about 242,952 (317)
Some of the next articles are maybe not open access.
Journal of Telemedicine and Telecare, 2008
Wireless telemedicine using GSM and GPRS technologies can only provide low bandwidth connections, which makes it difficult to transmit images and video. Satellite or 3G wireless transmission provides greater bandwidth, but the running costs are high. Wireless networks (WLANs) appear promising, since they can supply high bandwidth at low cost. However,
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Wireless telemedicine using GSM and GPRS technologies can only provide low bandwidth connections, which makes it difficult to transmit images and video. Satellite or 3G wireless transmission provides greater bandwidth, but the running costs are high. Wireless networks (WLANs) appear promising, since they can supply high bandwidth at low cost. However,
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The capacity of wireless networks
IEEE Transactions on Information Theory, 2000Summary: When \(n\) identical randomly located nodes, each capable of transmitting at \(W\) bits per second and using a fixed range, form a wireless network, the throughput \(\lambda (n)\) obtainable by each node for a randomly chosen destination is \(\Theta(W/\sqrt{(n\log n)})\) bits per second under a noninterference protocol.
Piyush Gupta, P. R. Kumar 0001
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Network Security, 2011
The security of wifi connections has been in and out of the news over the past few years as the integrity of the wifi encryption process has been progressively eroded. Wifi encryption is normally driven by the use of three flavours of passwords/passphrases – Wired Equivalent Privacy (WEP), Wifi Protected Access (WPA) and WPA2 – which use different ...
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The security of wifi connections has been in and out of the news over the past few years as the integrity of the wifi encryption process has been progressively eroded. Wifi encryption is normally driven by the use of three flavours of passwords/passphrases – Wired Equivalent Privacy (WEP), Wifi Protected Access (WPA) and WPA2 – which use different ...
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Scalability of Wireless Networks
IEEE/ACM Transactions on Networking, 2007This paper investigates the existence of scalable protocols that can achieve the capacity limit of c/radicN per source-destination pair in a large wireless network of N nodes when the buffer space of each node does not grow with the size of the network N.
Predrag R. Jelenkovic +2 more
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The future of wireless networking
2012 IEEE Hot Chips 24 Symposium (HCS), 2012This article consists of a collection of slides from the author's conference presentation on the future of wireless networks. Specific topics addressed include: the major factors driving the wireless market today; where the value is for companies and service providers; and new areas of technological development in the future.
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IEEE Network, 1997
Two network architectures for connecting fixed wireless nodes to a central concentrator-relay and star-are combined into a structured network architecture called a relay star network. A relay star network is characterized by the property that there is a unique communication path between any two nodes; that is, the graph of the network is a rooted tree.
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Two network architectures for connecting fixed wireless nodes to a central concentrator-relay and star-are combined into a structured network architecture called a relay star network. A relay star network is characterized by the property that there is a unique communication path between any two nodes; that is, the graph of the network is a rooted tree.
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Scheduling in Wireless Networks
Foundations and Trends® in Networking, 2011We present a review of the problem of scheduled channel access in wire-less networks with emphasis on ad hoc and sensor networks as opposed to WiFi, cellular, and infrastructure-based networks. After a brief introduction and problem definition, we examine in detail specific instances of the scheduling problem.
Anna Pantelidou, Anthony Ephremides
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Proceedings of the 1st International Conference on Wireless Technologies for Humanitarian Relief, 2011
The need for ubiquitous network access and services is fueling tremendous growth of wireless technologies, networks, and applications. Mobile and wireless devices are being increasingly used for a variety of applications including multimedia, information search and retrieval, entertainment, social, business, and medical applications, and sensing and ...
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The need for ubiquitous network access and services is fueling tremendous growth of wireless technologies, networks, and applications. Mobile and wireless devices are being increasingly used for a variety of applications including multimedia, information search and retrieval, entertainment, social, business, and medical applications, and sensing and ...
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4th Annual Communication Networks and Services Research Conference (CNSR'06), 2006
In this tutorial wireless mesh networks (WMNs) is discussed, which has the routing protocols of actual capacity. The multi-radio systems, technical problems are also described in this issue, such that the WMN have significant congestion control and fairness problems.
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In this tutorial wireless mesh networks (WMNs) is discussed, which has the routing protocols of actual capacity. The multi-radio systems, technical problems are also described in this issue, such that the WMN have significant congestion control and fairness problems.
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Computer, 2007
The confluence of inexpensive wireless communication, computation, and sensing has created a new generation of smart devices. Using tens to thousands of these devices in self-organizing networks has created a new technology referred to as wireless sensor networks. This article gives an overview of the wireless sensor networks.
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The confluence of inexpensive wireless communication, computation, and sensing has created a new generation of smart devices. Using tens to thousands of these devices in self-organizing networks has created a new technology referred to as wireless sensor networks. This article gives an overview of the wireless sensor networks.
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