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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The Overview ofSynchronization inDS-UWB
TL;DR: A review of acquisition methods in Direct Sequence-Spread Spectrum (DS-SS) communication system and several acquisition scheme used inDS-UWB system, finding thetwosides of onecontradiction needed to be tradeoff.
Proceedings ArticleDOI
Design of a 3.1-10.6GHz CMOS Mixer for UWB Receiver
TL;DR: This paper presents a design of 3.1-10.6GHz down-converted mixer for ultra wideband (UWB) system with 0.18im SMIC CMOS technology, which has met the requirements of UWB systems perfectly.
Multimedia TrafficManagementatMAC layerin
TL;DR: This paper proposes anadaptive MediumAccess Control (MAC) technique for high data-rate WPANs, aiming to minimize the performance of the WPAN intermsof throughput, considering multimedia traffic.
Power spectral density of a UWB signal with discrete quantized pulse positions Densit´ e spectrale de puissance d'un signal d'UWB avec des positions d'impulsions quantifi´ ees et discr` etes
John Nielsen,Stan Zwierzchowski +1 more
TL;DR: Insight emerge into optimum PPM transmitter implementation that maximizes transmit power and minimizes power losses due to the discrete spectral lines, as demonstrated in this paper.
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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