Distributed Precoding in Multicell Multiantenna Systems With Data Sharing

Konferenz: European Wireless 2014 - 20th European Wireless Conference
14.05.2014 - 16.05.2014 in Barcelona, Spain

Tagungsband: European Wireless 2014

Seiten: 6Sprache: EnglischTyp: PDF

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Long, Yi; Vucic, Nikola; Schubert, Martin (Huawei Technologies Duesseldorf GmbH, European Research Center, Munich, Germany)

In this paper, a precoding scheme for interference mitigation based only on local channel state information is proposed for downlink multicell multiantenna systems with joint transmission. The investigated scheme places interference components at the receivers coming from the different transmitters in predefined subspaces, so that they are completely or approximately cancelled. It is shown how in certain scenarios of practical interest this strategy exploits better the available degrees-of-freedom in the system, with very little or practically no additional coordination effort compared with the related results from the literature.