Precoding is a kind of pre-equalization technique in MIMO wireless communication system that suppresses the interference between users at the transmitter, using the channel state imformation (CSI). But for actual time-varying MIMO channels, there is imperfect CSI due to the channal state estimation errors. This will affect the performance of precoding.Firstly the thesis introduces some
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Multi-antenna system, named as Multiple-Input Multiple-Output (MIMO) system, which could improve transmission capacity and link reliability, has become one of key technologies that realize the high-speed broadband wireless Internet access networks in the future and has wide application prospect in the next generation mobile communications. This thesis discusses single-user downlink precoding algorithms based on spatial
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With the rapid development of information society, the new mobile communication system has a higher requirement for information transmission rate and quality of service. Multi-Input Multi-Output (MIMO) system could make full use of space resource, and increase the channel capacity and spectral efficiency without increasing the transmission power and signal bandwidth, which therefore has been
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