Power Randomization for Iterative Detection Over Random-Access Fading Channels

Salvo Rossi P, Kansanen K, Müller R, Rachinger C (2015)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2015

Journal

IEEE Transactions on Wireless Communications Institute of Electrical and Electronics Engineers (IEEE)

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 14

Pages Range: 5704-5713

Journal Issue: 10

DOI: 10.1109/TWC.2015.2441710

Abstract

In this paper, we focus on throughput performance of multiuser communications systems over fading channels. More specifically, we consider the uplink where multiuser detection under asynchronous transmissions is exploited for random-access management and iterative receivers are considered for practical issues. Normalized throughput is evaluated through a semi-analytic procedure in order to avoid time-consuming simulations. Power randomization is explored as a means for improving performance through system asymmetries. It is found beneficial, particularly in case of overloaded systems operating at low-to-medium signal-to-noise ratio, where it allows reducing significantly the number of iterations at the receiver.

Authors with CRIS profile

Ralf Müller Professur für Informationsübertragung Christoph Rachinger Lehrstuhl für Informationsübertragung

Involved external institutions

NTNU Trondheim - Norwegian University of Science and Technology NO Norway (NO)

How to cite

APA:

Salvo Rossi, P., Kansanen, K., Müller, R., & Rachinger, C. (2015). Power Randomization for Iterative Detection Over Random-Access Fading Channels. IEEE Transactions on Wireless Communications, 14(10), 5704-5713. https://doi.org/10.1109/TWC.2015.2441710

MLA:

Salvo Rossi, Pierluigi, et al. "Power Randomization for Iterative Detection Over Random-Access Fading Channels." IEEE Transactions on Wireless Communications 14.10 (2015): 5704-5713.

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