uwb
RSS uwbUWB goes legit
News The European Commission has given the official thumbs-up to Ultrawideband (UWB), the high bandwidth, short distance tech the EC believes will find its way onto all sorts of hardware in the coming years. [22 Feb 2007]
Ultra-Wideband (UWB) Technology: Enabling High-Speed Wireless Personal Area Networks
White Paper The answer is ultra-wideband (UWB) technology. UWB complements existing longer range radio technologies - such as Wi-Fi, WiMAX, and cellular wide are a communications - that bring in data and communications from the outside world. [25 Jun 2004]
UWB Coexistence and Cognitive Radio: How Multiband-OFDM Leads the Way
White Paper 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... [11 Apr 2008]
Introducing High-Speed Wireless Technologies (UWB, WiFi, and WiMAX)
White Paper 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. [02 Nov 2006]
Ultra-Wideband (UWB Technology): Enabling High-Speed Wireless Personal Area Networks
White Paper 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... [19 Jul 2007]
Power Allocation for Multi-Band OFDM UWB Communication Networks
White Paper Ultra wideband (UWB) technology has shown significant advantages over other existing ones for short- or medium-range high speed communications. This paper proposes an efficient low-complexity power allocation technique for clustered multi-band OFDM... [10 Apr 2008]
Ofcom ushers in licence-free UWB
News Ultrawideband (UWB) enables devices, such as PCs and DVD players, to communicate without wires at high speed and low cost over short distances, promising the eventual elimination of cabled interconnection for high-definition video and other... [13 Aug 2007]
Performance Evaluation of the Beacon Period Contraction Algorithm in UWB MBOA MAC
White Paper Beacon Period (BP) is an overhead in UWB MBOA MAC, since no data frame is allowed during a BP. This paper models the current BP contraction scheme in MBOA spec as a greedy distance-2 graph coloring algorithm, and formulates the BP contraction... [11 May 2007]
Multiband-OFDM MIMO Coding Framework for UWB Communication Systems
White Paper The emerging UltraWideBand (UWB) system offers a great potential for the design of high speed short-range wireless communications. This paper proposes a general framework to analyze the performance of multiband UWB-MIMO systems regardless of... [13 Apr 2007]
Bluetooth to be boosted by marriage to UWB
News The Bluetooth Special Interest Group (SIG) has said it will combine WiMedia Alliance's ultra-wideband (UWB) with its next-generation Bluetooth wireless technology. The Bluetooth SIG is targeting to release new specifications, with UWB integration... [31 Mar 2006]
An Integer-N Frequency Synthesizer Applied to MB-OFDM UWB 5th Band Group
White Paper This paper discusses an integer-N frequency synthesizer operated at 10 GHz around the MB-OFDM UWB system 5th band group with only 1.5V supply voltage which owns a varying frequency ranging from 9.29 GHz to 10.9 GHz and delivers -5:9dBm output power. [11 Apr 2007]
A "Range-Bandwidth Per Joule" Comparison for UWB and OTDM Waveforms
White Paper In that paper a comparison between UWB and DSSS technologies was done in terms of a Low Probability of Intercept and Detection (LPI/D) Figure of Merit, and complexity. This technical paper introduces OTDM and compares with both, UWB and DSSS, using... [10 Jul 2008]
Performance Analysis and Range Improvement in Multiband-OFDM UWB Communications
White Paper 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... [13 Apr 2007]
On the Relation Between Bandwidth and Robustness of UWB Channel in Complex Confined Areas
White Paper Ultra-Wideband (UWB) communication has been the subject of extensive research in recent years due to its unique capabilities and potential applications, particularly in short-range multiple access wireless communications. [08 Jul 2008]
Multiuser Receivers for DS-CDMA UWB
White Paper 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... [24 Jul 2004]
