Algorithm for Recovery of Reciprocity of a Wireless Communications Channel in MIMO Systems

G. V. Kulikov; S. S. Tambovskii; Yu. I. Savvateev; Yu. A. Grebenko

doi:10.1134/S106422691902013X

Algorithm for Recovery of Reciprocity of a Wireless Communications Channel in MIMO Systems

作者: Kulikov G.V.¹, Tambovskii S.S.¹, Savvateev Y.I.¹, Grebenko Y.A.²
隶属关系:
1. MIERA—Russian Technological University
2. Moscow Power Engineering Institute
期: 卷 64, 编号 2 (2019)
页面: 133-139
栏目: Theory and Methods of Signal Processing
URL: https://journals.rcsi.science/1064-2269/article/view/200325
DOI: https://doi.org/10.1134/S106422691902013X
ID: 200325

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详细

A new method for correcting the Massive MIMO system for MRT precoding in a downlink channel in order to recover the reciprocity of the channel is considered. It is shown that the lack of reciprocity of the channel between the base station and the user equipment is the main factor deteriorating the system performance. It is also established that the correction is necessary only for the equipment of the base station in the downlink. An estimate of the quality of the algorithm is given.