Results 1 - 10 of 515

FLUID: Improving Throughputs in Enterprise Wireless LANs through Flexible Channelization

by Shravan Rayanchu, Vivek Shrivastava, Suman Banerjee, Ranveer Chandra , 2011
"... This paper introduces models and a system for designing 802.11 wireless LANs (WLANs) using flexible channelization — the choice of an appropriate channel width and center frequency for each transmission. In contrast to current 802.11 systems that use fixed width channels, the proposed system, FLUID, ..."
Abstract - Cited by 17 (0 self) - Add to MetaCart
-like setup using a 50 node testbed (with off-the shelf wireless cards) and we show that FLUID improves the average throughput by 59 % across all PHY rates, compared to existing fixed-width approaches.

Robotics-Based Location Sensing Using Wireless Ethernet

by Andrew M. Ladd, Kostas E. Bekris, Algis Rudys, Lydia E. Kavraki, Dan S. Wallach - Wireless Networks , 2005
"... A key subproblem in the construction of location-aware systems is the determination of the position of a mobile device. This article describes the design, implementation and analysis of a system for determining position inside a building from measured RF signal strengths of packets on an IEEE 802.11 ..."
Abstract - Cited by 241 (5 self) - Add to MetaCart
in probabilistic inference of position and sensor fusion from noisy signals, we show that the RF emissions from base stations as measured by off-the-shelf wireless Ethernet cards are sufficiently rich in information to permit a mobile device to reliably track its location.

DIGITAL PHASED ARRAY ARCHITECTURES FOR RADAR AND COMMUNICATIONS BASED ON OFF-THE- SHELF WIRELESS TECHNOLOGIES

by Ong Chin Siang, Ong Chin Siang, Co-advisor David, C. Jenn, Co-advisor Siew, Yam Yeo, Second Reader, Jeffrey Knorr , 2004
"... Digital phased array architectures for radar and communications based on off-the-shelf wireless technologies ..."
Abstract - Cited by 2 (0 self) - Add to MetaCart
Digital phased array architectures for radar and communications based on off-the-shelf wireless technologies

Full-Duplex Wireless Communications Using Off-The-Shelf Radios: Feasibility and First Results

by Melissa Duarte, Ashutosh Sabharwal
"... Abstract—We study full-duplex wireless communication systems where same band simultaneous bidirectional communication is achieved via cancellation of the self-interfering signal. Using offthe-shelf MIMO radios, we present experimental results that characterize the suppression performance of three se ..."
Abstract - Cited by 82 (10 self) - Add to MetaCart
Abstract—We study full-duplex wireless communication systems where same band simultaneous bidirectional communication is achieved via cancellation of the self-interfering signal. Using offthe-shelf MIMO radios, we present experimental results that characterize the suppression performance of three

COMMUNICATIONS, AND UAV TRACKING BASED ON OFF-THE-SHELF WIRELESS TECHNOLOGIES

by Gezer Berat Levent, Berat Levent Gezer , 2006
"... Multi-beam digital antenna for radar, communications, and UAV tracking based on off-the-shelf wireless technologies ..."
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Multi-beam digital antenna for radar, communications, and UAV tracking based on off-the-shelf wireless technologies

Content With Off-The-Shelf PC Hardware

by Tyeler Quentmeyer, Tyeler S. Quentmeyer, Tyeler S. Quentmeyer , 2004
"... We present a PC based system to simultaneously compute real-time holographic video content and to serve as a framebuffer to drive a holographic video display. Our system uses only 3 PCs each equipped with an nVidia Quadro FX 3000G video card. It replaces a SGI Onyx and the custom built Cheops Image ..."
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We present a PC based system to simultaneously compute real-time holographic video content and to serve as a framebuffer to drive a holographic video display. Our system uses only 3 PCs each equipped with an nVidia Quadro FX 3000G video card. It replaces a SGI Onyx and the custom built Cheops Image

SWAN: A Mobile Multimedia Wireless Network

by Prathima Agrawal, Eoin Hyden, Paul Krzyzanowski, Partho Mishra, Mani B. Srivastava, John A. Trotter - IEEE Personal Communications , 1996
"... SWAN (Seamless Wireless ATM Network) is an experimental indoor wireless network that investigates the combination of wireless access with multimedia networked computing in an indoor setting. It is based on room-sized pico-cells and mobile multimedia end-points. It enables users carrying multimedia e ..."
Abstract - Cited by 74 (10 self) - Add to MetaCart
. SWAN is one of the first systems to realize the concept of a wireless and mobile ATM network. Mobile hosts as well as basestations are embedded with custom designed ATM adapter cards called FAWN (Flexible Adapter for Wireless Networking). FAWN uses off-the-shelf 2.4 GHz ISM band radios. After giving

Using Wireless Ethernet for Localization

by Andrew M. Ladd, Kostas E. Bekris, Guillaume Marceau, Algis Rudys, Dan S. Wallach, Lydia E. Kavraki
"... IEEE 802.11b wireless Ethernet is rapidly becoming the standard for in-building and short-range wireless communication. Many mobile devices such as mobile robots, laptops and PDAs already use this protocol for wireless communication. Many wireless Ethernet cards measure the signal strength of incomi ..."
Abstract - Cited by 26 (2 self) - Add to MetaCart
of incoming packets. This paper investigates the feasibility of implementing a localization system using this sensor. Using a Bayesian localization framework, we show experiments demonstrating that off-the-shelf wireless hardware can accurately be used for location sensing and tracking with about one meter

Radio-telepathy: extracting a secret key from an unauthenticated wireless channel

by Suhas Mathur, Narayan M, Chunxuan Ye, Alex Reznik - In MobiCom ’08 , 2008
"... Securing communications requires the establishment of cryptographic keys, which is challenging in mobile scenarios where a key management infrastructure is not always present. In this paper, we present a protocol that allows two users to establish a common cryptographic key by exploiting special pro ..."
Abstract - Cited by 119 (3 self) - Add to MetaCart
show that it is possible to practically achieve key establishment rates of ∼ 1 bit/sec in a real, indoor wireless environment. To illustrate the generality of our method, we show that our approach is equally applicable to per-packet coarse signal strength measurements using off-the-shelf 802

Software Radios for Wireless Networking

by Vanu G. Bose, Alok B. Shah, Michael Ismert , 1998
"... This paper describes a novel architecture for building software wireless network interfaces. These interfaces, implemented in user-level software, run on off-the-shelf PCs and replace all of the link and many of the physical layer functions typically implemented in dedicated hardware on a network in ..."
Abstract - Cited by 22 (2 self) - Add to MetaCart
This paper describes a novel architecture for building software wireless network interfaces. These interfaces, implemented in user-level software, run on off-the-shelf PCs and replace all of the link and many of the physical layer functions typically implemented in dedicated hardware on a network
Results 1 - 10 of 515