Nondata-Aided Hypothesis Testing of PAM Signals with Energy Detection

In this letter, we consider the problem of nondata-aided (NDA) detection of multilevel pulse-amplitude-modulated (PAM) signals combined with energy detection. We show that it is possible to estimate proper thresholds for the symbol decision without using redundant signals. Furthermore, we present an...

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Bibliographic Details
Published in:IEEE communications letters 2010-10, Vol.14 (10), p.957-959
Main Authors: Anttonen, Antti, Kotelba, Adrian, Mammela, Aarne
Format: Article
Language:English
Subjects:
Applied sciences
Approximation methods
Asymptotic properties
Convergence
Degrees of freedom
Detection, estimation, filtering, equalization, prediction
energy detection
Error analysis
Estimation
Exact sciences and technology
Fading
Information, signal and communications theory
Mathematical analysis
Modulation
Multilevel
Nondata-aided threshold estimation
Optimization
pulse amplitude modulation
Signal and communications theory
Signal to noise ratio
Signal, noise
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Testing
Thresholds
Transmission and modulation (techniques and equipments)
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Summary:In this letter, we consider the problem of nondata-aided (NDA) detection of multilevel pulse-amplitude-modulated (PAM) signals combined with energy detection. We show that it is possible to estimate proper thresholds for the symbol decision without using redundant signals. Furthermore, we present an analytical method to evaluate the effect of pattern noise on the error performance of the NDA scheme with respect to the number of modulation levels and the convergence rate. With relatively low numbers of degrees of freedom and slow fading, which are typical for short-range systems using multiband modulation, the performance of the NDA scheme turns out to be asymptotically comparable to that of the optimal threshold selection.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2010.091010.101050