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
Circular dipole antennas for lower and upper UWB bands with integrated balun
TL;DR: In this article, two fully integrated dipole antennas with balun for ultra-wideband (UWB) radio utilizing a flexible and rigid printed circuit board are presented in order to take advantage of the respective possibilities of the rigid and the flexible part.
Proceedings ArticleDOI
A high gain down-conversion mixer in 0.18um CMOS technology for ultra wideband applications
TL;DR: In this paper, a Gilbert cell (Double-Balanced) mixer with source degeneration at the RF driver stage and inductors between the RF (or driver) stage and the LO (or switching) stage is implemented and simulated in a 0.18µm CMOS technology.
Proceedings ArticleDOI
Design and implementation of a low-complexity RAKE receiver and Channel Estimator for DS-UWB
TL;DR: The proposed architecture demonstrates the tradeoff between energy capture, performance and receiver complexity by combining the benefits of both partial and selective RAKE receiver algorithms.
Proceedings ArticleDOI
High order ultrawideband pulse generation from NRZ-DPSK signals
TL;DR: In this paper, the authors presented ultrawideband doublet and triplet generation from NRZ-DPSK signals based on optical fiber and filter, where doublet was obtained by locating the optical carrier at the peak and slope of the filter.
Journal ArticleDOI
A 4-bit 36 GS/s ADC with 18 GHz Analog Bandwidth in 40 nm CMOS Process
TL;DR: A clock distribution circuit based on CMOS and current mode logic is implemented in the proposed ADC, which not only maintains the speed and quality of the high-speed clock, but also reduces the overall power consumption.
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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