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UWB Coexistence And Cognitive Radio: How Multiband-OFDM Leads The Way
White Papers The recent history of Ultrawideband communications technology has seen great debate over whether these UWB cause unacceptable interference to existing users of the same and nearby bands. Building on the IEEE 802.15.2 Recommended Practice and the...
[April 11, 2008, 0:00]
UWB Chips Debut With Gigabit Wireless In Sight
News Motorola's semiconductor division, Freescale, has announced availability of its first ultrawideband (UWB) wireless chipsets, with parts to be available to manufacturers by the end of June and consumer products expected by the end of 2004.
[June 7, 2004, 15:45]
Ultra-Wideband (UWB Technology): Enabling High-Speed Wireless Personal Area Networks
White Papers Ultra-WideBand (UWB) technology offers a solution for the bandwidth, cost, power consumption, and physical size requirements of next-generation consumer electronic devices. UWB enables wireless connectivity with consistent high data rates across...
[July 19, 2007, 0:00]
Introducing High-Speed Wireless Technologies (UWB, WiFi, And WiMAX)
White Papers A gentle introduction to the high-speed wireless technology standards for UWB, WiFi and WiMAX is provided in this paper. These are technologies for short, mid and long range capabilities, respectively.
[November 2, 2006, 23:00]
Introducing High-Speed Wireless Technologies (UWB, WiFi, And WiMAX)
White Papers A gentle introduction to the high-speed wireless technology standards for UWB, WiFi and WiMAX is provided in this paper. These are technologies for short, mid and long range capabilities, respectively.
[November 2, 2006, 23:00]
UWB Standards Rivals Offer Royalty-free Technology
News The promise was made by Motorola and XtremeSpectrum, which are backing one of two proposals for a new wireless technology called ultrawideband (UWB), which creates 100-megabits-per-second links between devices.
[October 29, 2003, 16:05]
UWB Products To Debut Despite Standards Stalemate
News Prototypes of cell phones, high-definition televisions, laptops and wireless access points using UWB, as ultrawideband is more commonly known, should be available commercially by the end of 2005, the manufacturers say.
[January 6, 2005, 9:00]
Multivalued Transmission System For UWB-CDMA Using Modified Hermite Pulse Shape
White Papers Ultra Wideband (UWB) signal is defined as that whose bandwidth either surpasses 25% of its spectrum's center frequency or exceeds 1.5GHz. The UWB communication systems are often referred to as Impulse Radio systems since such ultra wideband signals...
[February 16, 2006, 23:00]
Performance Of The Multi-Band OFDM UWB System With Time-Varying Channels
White Papers Multi-band OFDM, proposed as a standard for wireless personal area network (WPAN) physical layer in, is a promising technology for ultra wide band (UWB) transmission, thanks to the maturity of high rate orthogonal frequency division multiplexing...
[October 21, 2004, 0:00]
Working UWB? Yes Please, Pulse-LINK
Blog This idiosyncratic Californian company has been active in developing UWB since the beginning of the century: unlike virtually everyone else in the business, it's avoided joining the various consortia which have battled away for supremacy in the...
[December 13, 2007, 16:53]
The FCC’s UWB Proceeding: An Examination Of The Government’s Spectrum Management Process
White Papers Ultrawideband, otherwise known as UWB, is an exciting new technology with many promising applications for Americans across the country as well as public safety officials. One need only consider the three categories of UWB applications to see.
[July 19, 2003, 0:00]
Design Of A Multiband OFDM System For Realistic UWB Channel Environments
White Papers There are many differences between real-world behavior of narrow-band and UWB systems. The large bandwidth of UWB waveforms, instead, significantly increases the ability of the RX to resolve the different reflections in the channel.
[July 25, 2007, 0:00]
Multiuser Receivers For DS-CDMA UWB
White Papers This paper demonstrates the effectiveness of multiuser detection for an ultra-wide-band (UWB) pulse based direct sequence spread spectrum system using code division multiple access. Extensive simulations were run using channel soundings of 2-8 GHz...
[July 25, 2004, 0:00]
Performance Analysis And Range Improvement In Multiband-OFDM UWB Communications
White Papers The performance of multiband-OFDM UWB systems is analyzed using the S-V indoor channel model. Based on the analysis, two methods are proposed to improve the reliable transmission range of UWB devices by exploiting the rich spectral and spatial...
[April 13, 2007, 0:00]
DS-CDMA: The Technology Of Choice For UWB
White Papers This white paper provides a background on UWB and compares the performance of DS-CDMA based UWB and multiband-OFDM based UWB. DS-CDMA offers the highest aggregate Mbps/m2 data rates because its CDMA codes are designed from the ground up to support...
[July 25, 2004, 0:00]
Precise Timing For Multiband OFDM In A UWB System
White Papers Precise positioning is one attractive application of Ultra WideBand (UWB) systems. This paper addresses practical synchronization algorithms for multiband OFDM UWB transmission, and analyze the performance of a Maximum Likelihood (ML) joint timing...
[April 13, 2007, 0:00]
Bluetooth Picks WiMedia UWB For High Speed
White Papers The Bluetooth SIG Core Specification Working Group Charter and UWB Feature Requirements Document (FRD) will commence immediately, but one should not expect high data rate for file transfers and better voice communication just yet.
[June 30, 2006, 0:00]
From Mesh To UWB: Untangling The Wireless Future
News In the future, Greene says, this type of seamless roaming will be extended not just across Wi-Fi services, but also networks using anything from WiMax in the city and UWB in the home. In the next few years, the arrival of services such as...
[April 16, 2004, 12:35]
Then There's UWB, WiMax, WOzNet...
White Papers Service providers could adopt a wireless technology called WiMax - or 802.16 - which is expected to be pushed by the likes of Intel. Imagine a beam of bandwidth that supports data-transmission rates of up to 70 megabits per second within a 30-mile...
[January 19, 2005, 23:00]
MPTS002: Intel Ultrawideband Wireless Overview
White Papers This presentation provides an overview of UltraWideBand Wireless Overview (UWB) as a WPAN technology for very high bandwidth applications over short distances. It provides exposure to Intel's UWB/WUSB solutions: WiMedia MAC silicon, UWB host...
[August 1, 2006, 0:00]
