Near-Optimal Pilot Signal Design for FDD Massive MIMO System: An Energy-Efficient Perspective

This paper investigates the pilot signal design for a massive multiple-input multiple-out (MIMO) frequency division duplexing downlink system by taking the channel spatial correlation into account. Our objective is to optimize the pilot pattern, including the pilot power and structure, from the pers...

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Veröffentlicht in:	IEEE access 2018-01, Vol.6, p.13275-13288
Hauptverfasser:	Wang, Yi, Ma, Pengge, Zhao, Rui, Huang, Yongming, Li, Chunguo, Zhu, Jun, Huang, Kaizhi, Wang, Bing
Format:	Artikel
Sprache:	eng
Schlagworte:	Approximation Channel estimation Correlation Correlation analysis Cost function Downlink Energy efficiency Equivalence FDD Frequency division duplexing Iterative algorithms Iterative methods Lagrangian function Massive MIMO Mathematical analysis Maximization MIMO (control systems) MIMO communication Optimization pilot design Power consumption Signal design Training
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