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Airsync: enabling distributed multiuser MIMO with full multiplexing gain
Airsync: enabling distributed multiuser MIMO with full multiplexing gain
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机译：Airsync：实现具有全复用增益的分布式多用户MIMO
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摘要
Time and phase synchronization may enable distributed multiuser multiple-input multiple-output (MIMO) architectures and techniques, such as supported by the IEEE 802.11n standard, where several access points are connected to a central server and operate as a large distributed multi-antenna access point. The phase of all access points can be locked using a common reference (e.g., a synchronization tone) broadcasted over the air in conjunction with a predictive filter (e.g., a Kalman filter) which closely tracks the phase drift for each subcarrier channel.
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