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Transmit Beamforming for Inter-Operator Spectrum Sharing: From Theory to Practice
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2012 (English)In: Proceedings of the International Symposium on Wireless Communication Systems, IEEE conference proceedings, 2012, p. 291-295Conference paper, Published paper (Refereed)
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Text
Abstract [en]

In this paper, four transmit beamforming (BF) techniques are selected and compared to realize inter-operator spectrum sharing, which is a promising solution for the spectrum shortage problem. The BF techniques include two game-theoretic (GT) algorithms, zero-forcing (ZF) and minimum mean square error (MMSE). After a brief description of the BF techniques in a multiple-input single-output (MISO) system, their computational complexity is analyzed. The effectiveness of these techniques in real radio frequency (RF) signal transmission is verified by implementation on a flexible hardware-in-the-loop (HIL) testbed. First, several important aspects regarding practical implementation are discussed. Afterwards, the HIL measurement results are shown, where considerable sum rate gain can be observed due to spectrum sharing. Finally, the appropriate BF technique can be chosen based on a tradeoff between complexity and performance.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2012. p. 291-295
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-182724DOI: 10.1109/ISWCS.2012.6328376Scopus ID: 2-s2.0-84871282067OAI: oai:DiVA.org:kth-182724DiVA, id: diva2:1052200
Conference
International Symposium on Wireless Communication Systems (ISWCS)
Note

QC 20161220

Available from: 2016-12-05 Created: 2016-02-22 Last updated: 2016-12-20Bibliographically approved

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Mochaourab, Rami
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