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Journal ArticleDOI

Ultra-wideband wireless systems

G.R. Aiello, +1 more
- 28 May 2003 - 
- Vol. 4, Iss: 2, pp 36-47
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.

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Citations
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Design and analysis of a compact UWB pulse generator with programmable pulse shape

TL;DR: In this article, a programmable ultra-wideband (UWB) pulse generator designed and simulated in 90nm CMOS technology is presented, which receives an input square pulse and uses a pulse-combinatorial method to generate an output pulse composed of six individual impulses, each independently adjustable in both amplitude and delay.
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A 3 GHz to 10 GHz GaAs double balanced mixer

TL;DR: In this paper, a broadband GaAs MMIC double balanced diode ring mixer was designed, which covers radio frequency (RF)/local oscillator (Lo) operating frequency range from 3 GHz to 10 GHz and the bandwidth of intermediate frequency (IF) signal is from 10MHz to 4 GHz.
Journal ArticleDOI

Systematic Approaches of UWB Low-Power CMOS LNA with Body Biased Technique

TL;DR: In this article, a low power CMOS UWB LNA based on a cascoded common source and current-reused topology is proposed, where the power reduction can be achieved by using body biased technique and topology.
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Methodology to design advanced MR-IR-UWB communication system

TL;DR: A new model is proposed giving the channel capability of a multiband impulse radio ultra-wideband (MB-IR-UWB) system against the number of subband and the duty cycle.
Journal ArticleDOI

Soft, Wireless and subdermally implantable recording and neuromodulation tools.

TL;DR: In this article, a review explores the current state-of-the-art in wireless, subdermally implantable tools that quantitively expand capabilities in analysis and perturbation of the central and peripheral nervous system by removing tethers and externalized features of implantable neuromodulation and recording tools.
References
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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

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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