Transceivers Based on Ping-Pong Beam Training for Large Multiuser MIMO Systems

Ping-pong beam training (PPBT) is a procedure for estimating the singular vectors of a channel matrix. It relies on alternate transmissions between two devices and is applicable to reciprocal channels. In a large multi-user MIMO system with massive antenna arrays at both base station and user device...

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Bibliographic Details
Published inIEEE wireless communications letters Vol. 5; no. 6; pp. 656 - 659
Main Authors de Carvalho, Elisabeth, Andersen, Jorgen Bach
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 01.12.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Antenna arrays
Beam training
Devices
Hierarchies
Interference
large MIMO
Mathematical analysis
Matrix algebra
Matrix methods
MIMO
MIMO (control systems)
multi-user MIMO
Signal to noise ratio
singular vectors
Training
Transceivers
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Summary:Ping-pong beam training (PPBT) is a procedure for estimating the singular vectors of a channel matrix. It relies on alternate transmissions between two devices and is applicable to reciprocal channels. In a large multi-user MIMO system with massive antenna arrays at both base station and user devices, PPBT is used to obtain an estimate of the left and right singular vectors associated to the maximal singular value. Based on those singular vectors, multi-user MIMO transceivers are built and their performance is analyzed. A zero-forcing structure is shown to lead to an inter-user interference-free performance under asymptotic conditions.
ISSN:2162-2337
2162-2345
DOI:10.1109/LWC.2016.2613041