NDLI: Multiple-access ultrawideband communications using frequency modulation of quasi-orthogonal impulse-like waveforms

Content Provider	IET Digital Library
Author	Shishter, Yousef M. H. Hussain, Malek G. M.
Abstract	This paper presents a detailed study of multiple access ultrawideband communications based on M-ary frequency-shift keying modulation of impulse-like carrier waveforms. The proposed signal model is described using expressions of duty cycle, energy, and correlation coefficient analytically derived and analyzed in terms of signal parameters. The frequency sets for coherent as well as non coherent detection utilized in narrow band communications are extended to impulse communications, and the resultant signals' correlation properties are investigated. Analytic expression of the frequency spectrum for continuous transmission is obtained, and a parametric study of the spectrum is carried out to analyze its properties. System performance analysis in terms of error probability curves is given for different signal model parameters. For single user communications, error probability curves for M-ary system are plotted using the union bound, while for multiple access communications, analytic expression of binary error probability in Rayleigh fading channel is given and plotted. The plots demonstrate the advantages of multiple access coding and signal design in improving system performance. Comparison between the bit error performance of impulse frequency shift keying, impulse phase shift keying, pulse position, and binary phase shift keying modulation schemes is presented too.
Starting Page	1543
Ending Page	1553
Page Count	11
ISSN	17518628
Volume Number	14
e-ISSN	17518636
Issue Number	Issue 10, Jun (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/14/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2018.6100
Journal	IET Communications
Publisher Date	2020-02-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Analytic Expression Binary Error Probability Correlation Coefficient Different Signal Model Parameter Error Probability Curves Error Statistics Fading Channel Frequency Modulation Frequency Shift Keying Frequency Spectrum Impulse Communication Impulse Frequency Shift Keying Impulse Phase Shift Keying Impulse-carrier Frequency M-ary Frequency-shift Modulation And Coding Method Multiple Access Coding Multiple Access Communication Multiple Access Ultrawideband Communication Multiple-access Ultrawideband Communication Narrow Band Communication Noncoherent Detection Phase Shift Keying Pulse Position Modulation Quasiorthogonal Impulse-like Carrier Waveform Radio Link And Equipment Rayleigh Channel Resultant Signal Signal Design Signal Parameter Single-user Communication Statistics Ultra Wideband Communication
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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