Journal ArticleDOI
Ultra-wideband wireless systems
G.R. Aiello,G.D. Rogerson +1 more
TLDR
In this article, two UWB multiband systems, frequency hopping and Spectral Keying, have been described, both of which meet the stringent requirements provided by IEEE 802.15.3a.Abstract:
The recent FCC frequency allocation for UWB has generated a lot of interest in UWB technologies. There is 7,500 MHz of spectrum for unlicensed use. The main limitations are provided by the low-power spectral density and by the fact that the transmit signal must occupy at least 500 MHz at whole times. IEEE 802.15.3a is being developed for high-bit-rate PAN applications, and UWB is the most promising technology to support the stringent requirements: 110, 200, and 480 Mb/s. Two UWB multiband systems, frequency hopping and Spectral Keying, have been described in this article. Both systems meet the stringent requirements provided by IEEE 802.15.read more
Citations
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Journal ArticleDOI
Waveform-Independent Frame-Timing Acquisition for UWB Signals
TL;DR: An optimal frame-level timing estimator is derived which outperforms existing acquisition methods in low-SNR scenarios and is derived under the unconditional maximum likelihood criterion.
Journal ArticleDOI
Gaussian pulse approximation using standard CMOS and its application for sub-GHz UWB impulse radio
TL;DR: The simulation results show that the generated pulse approximates the Gaussian shape very well and the radiated signal at the antennas is compliant with the Federal Communication Commission's spectral mask for the 0–960 MHz band.
Journal ArticleDOI
Compact CMOS IR-UWB transmitter using variable-order Gaussian pulse generator
TL;DR: An area-efficient CMOS impulse radio ultra-wideband (IR-UWB) transmitter capable of generating variable orders of Gaussian pulses is presented and measurement shows that the fully integrated transmitter can generate fifth- to sixth-order Gaussian specials.
Proceedings ArticleDOI
Radio architecture for parallel processing of extremely high speed data
TL;DR: Using the authors' own-developed frequency multiplexing network, a radio architecture for parallel radio signal processing has been proposed for achieving extremely high data rate above 10 Gbit/s to meet the high requirement on phase linearity, amplitude balance and low noise figure in a very large bandwidth.
Proceedings ArticleDOI
A compact CMOS UWB LNA using tunable active inductors for WLAN interference rejection
TL;DR: A compact 2.0–11.0GHz CMOS ultra-wideband (UWB) low-noise amplifier (LNA) using tunable active inductors for suppressing in-band WLAN interference signals and employing multiple resonators in the LNA increases the rejection depth.
References
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Proceedings ArticleDOI
Rapid acquisition for ultra-wideband localizers
TL;DR: This work has developed a method of rapid acquisition that allows two nodes to acquire each other in a fraction of the time afforded by other methods, utilizing a beacon/listener technique using Kasami sequences and divide-and-conquer algorithms.
Proceedings ArticleDOI
Recent advances in ultra wideband communications systems
TL;DR: Three recent system developments are described: an ad hoc wireless UWB communications network for tactical voice and high-speed data communications; a long range UWB system for over-the-water and non line-of-sight voice, data and video communications.
Proceedings ArticleDOI
UWB technology for wireless video networking
M. Ho,L. Taylor,G.R. Aiello +2 more
TL;DR: The characteristics and the advantages of ultra-wideband (UWB) radio technology when combined with a decentralized, priority-driven network architecture for wireless video networking in the home are described.
Proceedings ArticleDOI
Multi-user perspectives in UWB communications networks
TL;DR: In this article, the authors provide an overview of multiplexing techniques and suggest ways in which they can be applied to UWB networks and relative advantages and challenges of each technique are identified in order to understand the suitabilitability of each for use in a multi-piconet WPAN system.
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