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

Autor: Jørgen Bach Andersen, Elisabeth de Carvalho
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Carvalho, E D & Andersen, J B 2016, ' Transceivers Based on Ping-Pong Beam Training for Large Multiuser MIMO Systems ', I E E E Wireless Communications Letters, vol. 5, no. 6, pp. 656-659 . https://doi.org/10.1109/LWC.2016.2613041
DOI: 10.1109/LWC.2016.2613041
Popis: 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.
Databáze: OpenAIRE