Space-time spreading codes for a multiuser MIMO system

Conference Record of the Asilomar Conference on Signals Systems and Computers(2002)

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摘要
We study the use of the spatial dimension in enabling multiple access for the down-link of a cellular communication system and propose a two dimensional spreading code. The band-width efficiency is increased by minimum number of transmit and receive antennas, over a single antenna system, while diversity is provided at the receiver. A key feature of the proposed technique is that it simplifies the implementation of joint space-time decoding and multiuser detection in each user station. The channel is supposed to be known only at the receiver.
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关键词
space time,decoding,communication system
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