Interference cancellation and link quality enhancement design for multiuser multipleinput multiple-output systems with full-duplex relay

Juinn Horng Deng, Cheng Yi Chang, Meng Lin Ku

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The authors design a transceiver for a multiuser (MU) multiple-input multiple-output communication system with a fullduplex relay (FDR) station. Such a system contains several types of interference, such as MU interference, parallel streams, and self-interference. To cancel this interference and achieve reliable MU communication, the authors use an equivalent FDR station model, in which the block diagonalisation (BD) scheme, which includes a base station, a relay, and a mobile station, can be used to derive the linear precoders and postprocessing filter. This work also studies link quality enhancement for the full-link system, including MU direct link and relay links communications. More interference will exist in a full-link system. They proposed a novel separable precoder and postprocessing algorithms to cancel all interference over the downlink FDR system. Simulation results demonstrate that the proposed transceiver design can provide a reliable sum rate with linear growth performance under the MU scenario with multiple interference and channel estimation errors and obtain diversity gain to improve the full system link quality.

Original languageEnglish
Pages (from-to)340-348
Number of pages9
JournalIET Communications
Volume12
Issue number3
DOIs
StatePublished - 20 Feb 2018

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