WSEAS Transactions on Systems and Control

Print ISSN: 1991-8763
E-ISSN: 2224-2856

Volume 13, 2018

Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of WSEAS Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.

Volume 13, 2018

A Novel Approach to MISO Interference Networks Under Maximum Receive-Power Regulation

AUTHORS: Ana I. Perez-Neira, Miguel Angel Vazquez, Miguel Angel Lagunas

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ABSTRACT: An aggressive frequency reuse is expected within the next years in order to increase the spectral efficiency. Multiuser interference by all in-band transmitters can create a communication bottleneck and, therefore, it is compulsory to control it by means of radiated power regulations. In this work we consider received power as the main way to properly measure radiated power, serving at the same time as a spectrum sharing mechanism. Taking into account the constraints on the maximum total receive-power and maximum transmit-power, we first obtain the transmit powers that attain the Pareto-efficient rates in an uncoordinated network. Among these rates, we identify the maximum sum-rate point for noise-limited scenarios. Next, in order to reach this working point using as less power as possible, we design a novel beamformer under some practical considerations. This beamformer can be calculated in a non-iterative and distributed fashion (i.e. transmitters do not need to exchange information). We evaluate our design by means of Monte Carlo simulations, compare it with other non-iterative transmit beamformers and show its superior performance when the spectrum sharing receive-power constraints are imposed

KEYWORDS: -Beamforming, Spectrum Sharing, Cognitive beamforming, Interference Channel, Open Spectrum, Time Area Spectrum, Interference Management.


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WSEAS Transactions on Systems and Control, ISSN / E-ISSN: 1991-8763 / 2224-2856, Volume 13, 2018, Art. #34, pp. 298-315

Copyright Β© 2018 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution License 4.0

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