Application of MIMO technology in wideband millimeter range wireless communications systems

V. T. Ermolayev; A. G. Flaksman; A. E. Rubtsov; S. A. Tiraspolsky; V. Yu. Semenov; M. A. Sokolov

doi:10.3103/S073527271104008X

Authors

V. T. Ermolayev N. I. Lobachevsky State University of Nizhny Novgorod, Russian Federation
A. G. Flaksman N. I. Lobachevsky State University of Nizhny Novgorod, Russian Federation
A. E. Rubtsov N. I. Lobachevsky State University of Nizhny Novgorod; Lantan LLC, Russian Federation
S. A. Tiraspolsky Lantan LLC, Russian Federation
V. Yu. Semenov N. I. Lobachevsky State University of Nizhny Novgorod, Russian Federation
M. A. Sokolov Intellivision LLC, Russian Federation

DOI:

https://doi.org/10.3103/S073527271104008X

Keywords:

singular value decomposition, wireless communication system, Orthogonal Frequency Division Multiplexing, OFDM, millimeter range

Abstract

A concept of using MIMO technology in millimeter range wireless communications systems with orthogonal frequency division multiplexing is considered. The concept is based on dividing transmitting and receiving multi-element antenna arrays into separate sub-arrays with analogue radiation pattern shaping and on using two most powerful space sub-channels for information transmission. Sequence and structure of transmitted packets between transceivers are suggested that allow for obtaining information on communications channel based on additional training sequences without feedback channel. Modeling results of communications system’s operation in conditions of multipath frequency-selective fading channel are presented.

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