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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Journal ArticleDOI
Full length article: Accurate analysis of a high data rate UWB-DTR system in dense multipath fading channels
Hassan Khani,Paeiz Azmi +1 more
TL;DR: An analytical framework to evaluate the exact bit error rate (BER) performance of a high data rate Ultra-Wideband Differential Transmitted-Reference (UWB-DTR) system over a perfect IEEE 802.15.3a Channel Model 1 (CM1) is developed and log-normal fading is considered, which is an essential characteristic of CM1, for the first time.
Journal ArticleDOI
Code hopping - direct sequence spread spectrum to compensate for intersymbol interference in an ultra-wideband system
Sung Han Chung,Peter J. McLane +1 more
TL;DR: The central idea is that code hopping (CH) affects ISI amplitudes that are produced by both the cross-and the auto-correlation properties of spreading codes for codewords; not just by the latter as occurs without CH.
Journal ArticleDOI
Novel UWB BPF design using modified trisection MMR
TL;DR: In this paper, a novel ultrawideband (UWB) bandpass filter (BPF) is proposed and designed using a multimode resonator (MMR) that is modified from a conventional trisection stepped-impedance resonator.
Journal ArticleDOI
On the Variance-Based Detection for Impulse Radio UWB Systems
TL;DR: This paper develops a log-normal random distribution model for the VD-based IR-UWB receiver and deriving the analytical bit-error-rate formulas for the system in both additive white Gaussian noise and CM1 multipath channels with and without NBIs for the first time.
Ultra wideband surface wave communications
TL;DR: In this article, the waveform, transmitter, receiver, modulation and channel characteristics of the novel system design were presented, including the waveforms, transmitters, receivers, and channels.
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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