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A Successive Optimi...
A Successive Optimization Approach to Pilot Design for Multi-Cell Massive MIMO Systems
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- Al-Salihi, Hayder (author)
- The Department of Informatics, King’s College London, UK
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- Van Chien, Trinh, 1989- (author)
- Linköpings universitet,Kommunikationssystem,Tekniska fakulteten,Communication Systems Division
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- Le, Tuan Anh (author)
- The Department of Design Engineering and Mathematics, Middlesex University, London, UK,The Department of Design Engineering and Mathematics, Middlesex University, London
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- Nakhai, Mohammad Reza (author)
- The Department of Informatics, King’s College London, London, UK
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2018
- 2018
- English.
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In: IEEE Communications Letters. - : Institute of Electrical and Electronics Engineers (IEEE). - 1089-7798 .- 1558-2558. ; 22:5, s. 1086-1089
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- In this letter, we introduce a novel pilot designapproach that minimizes the total mean square errors of theminimum mean square error estimators of all base stations (BSs)subject to the transmit power constraints of individual users inthe network, while tackling the pilot contamination in multicellmassive MIMO systems. First, we decompose the originalnon-convex problem into distributed optimization sub-problemsat individual BSs, where each BS can optimize its own pilotsignals given the knowledge of pilot signals from the remainingBSs. We then introduce a successive optimization approach totransform each optimization sub-problem into a linear matrixinequality form, which is convex and can be solved by availableoptimization packages. Simulation results confirm the fast convergenceof the proposed approach and prevails a benchmarkscheme in terms of providing higher accuracy.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
Keyword
- Massive MIMO
- pilot design
- successive optimization
- distributed optimization
Publication and Content Type
- ref (subject category)
- art (subject category)
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