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Downlink Spectral E...
Downlink Spectral Efficiency of Massive MIMO with Dual-Polarized Antennas
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Özdogan, Özgecan (författare)
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- Björnson, Emil, Professor, 1983- (författare)
- KTH,Kommunikationssystem, CoS,(ISY), Linköping University, Sweden
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(creator_code:org_t)
- VDE Verlag GmbH, 2021
- 2021
- Engelska.
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Ingår i: WSA 2021 - 25th International ITG Workshop on Smart Antennas. - : VDE Verlag GmbH. ; , s. 323-328
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- This paper considers the downlink of a single-cell massive MIMO (multiple-input multiple-output) system with dual-polarized antennas at both the base station and users. We consider a channel model that takes into account several practical aspects that arise when utilizing dual polarization, such as channel cross-polar discrimination (XPD) and cross-polar receive and transmit correlations (XPC). We derive the statistical properties of the minimum mean squared error (MMSE) channel estimator for this model. Using these estimates for maximum ratio precoding, a rigorous closed-form downlink spectral efficiency (SE) expression is derived. We compare the SEs achieved in dual-polarized and uni-polarized setups numerically and evaluate the impact of XPD on the downlink SE.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Dual-polarized antennas
- Massive MIMO
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)