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A New Space-time Coded Transmission Scheme for Two-user MIMO-MAC ⋆

By Xinji Tian and Ya Li

Abstract

A new space-time coded transmission scheme with limited feedback is proposed in order to eliminate interference for two-user MIMO-MAC. Each user employs rate-2 space-time block code with phase rotation, which requires a phase feedback. The multiuser interference is eliminated through simple addition of the received signal, and full diversity is realized. the signal to noise ratio is increased in the proposed scheme and the system performance is improved compared with the existing space-time coded transmission scheme with limited feedback

Topics: Multi-input Multi-output, Multiple Access Channels, Space-time Code, Multi-user Interference, Signal to Noise Ratio
Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.353.2715
Provided by: CiteSeerX
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