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
All-optical ultra-wideband monocycle pulse generation using polarization state rotation filtering
TL;DR: In this article, a novel method to generate ultra wideband (UWB) monocycle pulses using polarization state rotation filtering of optical negative pulses is presented. But the method is limited to monocycles with reversed polarities.
Proceedings ArticleDOI
Photonic generation of Ultra-wideband monocycle and doublet pulses using simplex semiconductor optical amplifier
TL;DR: In this paper, the authors demonstrate two all-optical methods for UWB pulse generation based on various nonlinearities of the semiconductor optical amplifier (SOA), namely, self phase modulation (SPM), and cross gain modulation (XGM), and report that the generated doublet pulses are transmitted over 5km SMF by proper dispersion compensation without distortion.
Proceedings ArticleDOI
Photonic monocycle pulse generation and modulation for ultra-wideband-over-fiber application
TL;DR: In this paper, a photonic UWB monocycle pulse generation and position modulation (PPM) was demonstrated in a UWB-over-fiber system with two differently-biased Mach-Zehnder modulators.
Proceedings ArticleDOI
Optical ultra-wideband pulses for multi-channel radio-over-fiber communication systems
Wen-Piao Lin,Yuan-Ching Chen +1 more
TL;DR: Modeling analysis and experiment results demonstrate that the proposed BPSK modulation scheme can provide a large capacity and lower interference noise for the multi-channel UWB wireless communications.
Proceedings ArticleDOI
Acs-fed UWB bandpass filter with new structure
TL;DR: In this paper, an asymmetric coplanar (ACS)-fed UWB filter was proposed, which works in the ultra-wideband (UWB) frequency band.
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
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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