On the Performance of Energy-Division Multiple Access with Regular Constellations

Authors:
Pierluigi Salvo Rossi;Gianmarco Romano;Francesco Palmieri
Affiliations:
Department of Information Engineering, Second University of Naples, Aversa, Italy 81031;Department of Information Engineering, Second University of Naples, Aversa, Italy 81031;Department of Information Engineering, Second University of Naples, Aversa, Italy 81031
Venue:
Wireless Personal Communications: An International Journal
Year:
2012

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Abstract

In this paper we describe a multiple-access protocol in which different users are assumed to share the same bandwidth and the same pulse. Users employ the same modulation (binary-phase shift keying, quadrature-phase shift keying, and rectangular-phase shift keying are considered) with different transmitted magnitude, and are discriminated on the basis of the corresponding magnitude at receiver location. Conditions for user discrimination are analyzed. The proposed receiver uses successive decoding in order to avoid exponential complexity of maximum-likelihood decoding. Such a scheme, compared to orthogonal multiaccess schemes (e.g. time- or frequency-division multiple access) allows to achieve larger normalized throughput for systems operating in large signal-to-noise ratio range, and may be jointly applied with classical protocols in personal-area networks. Analytical and numerical results, in terms of bit error rate and normalized throughput, are derived for performance evaluation on additive white Gaussian noise channels.