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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Proceedings ArticleDOI
Principles Governing Sensory Memory Towards Software Learning
Thang N. Nguyen,Vanja Cvetojevic +1 more
TL;DR: It is submitted that the result of this investigation establishes a basis to further formulate a computational software modeling capable of learning and higher mental abilities as does a human newborn.
Proceedings ArticleDOI
All-optical ultrawideband monocycle and doublet generation using cascaded PPLN waveguides
TL;DR: In this paper, a novel all-optical method for generating UWB pulses is proposed and theoretically analyzed using cascaded periodically initialized normalized LiNbO 3 (PPLN) waveguides.
Proceedings ArticleDOI
Proposal of a new punctured turbo coding scheme for TH-UWB communications
TL;DR: This paper deals with a novel cross-layer approach, involving both physical and data link layers, suitable for TH-UWB systems, named punctured hopping (PH), which permits to limit the throughput reduction of the basic full rate turbo coding scheme, while maintaining the same code free distance.
Proceedings ArticleDOI
Maximum likelihood receiver for multiband keying signals in AWGN channel [UWB]
Xiang Gao,M. Naraghi-Pour +1 more
TL;DR: It is shown by simulation that while the proposed algorithm significantly reduced the computational complexity, the performance in terms of symbol error rate is very close to that of the optimal ML receiver.
Journal ArticleDOI
Network Scalability for Ultra-Wideband Real-Time Location Systems Based on vMISO
TL;DR: This article establishes an extendable UWB location system model through intelligent response across the routing layer and physical layer and considers simultaneous network scalability with the relative clock synchronization and localization.
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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