Joint Spatial Division and Multiplexing for mm-Wave Channels
نویسندگان
چکیده
منابع مشابه
Joint Spatial Division and Multiplexing
We propose Joint Spatial Division and Multiplexing (JSDM), an approach to multiuser MIMO downlink that exploits the structure of the correlation of the channel vectors in order to allow for a large number of antennas at the base station while requiring reduced-dimensional Channel State Information at the Transmitter (CSIT). This allows for significant savings both in the downlink training and i...
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Joint Spatial Division and Multiplexing (JSDM) is a recently proposed scheme to enable massive MIMO like gains and simplified system operations for Frequency Division Duplexing (FDD) systems. The key idea lies in partitioning the users into groups with approximately similar covariances, and use a two stage downlink beamforming: a prebeamformer that depends on the channel covariances and minimiz...
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Asynchronous quasi-delay-insensitive (QDI) NoCs have several advantages over their clocked counterparts. Virtual channel (VC) is the most utilized flow control method in asynchronous routers but spatial division multiplexing (SDM) achieves better throughput performance for best effort traffic than VC. A novel asynchronous SDM router architecture is presented. Area and latency models are provide...
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Massive MIMO is widely considered as a key enabler of the next generation 5G networks. With alarge number of antennas at the Base Station, both spectral and energy efficiencies can be enhanced.Unfortunately, the downlink channel estimation overhead scales linearly with the number of antennas.This burden is easily mitigated in TDD systems by the use of the channel reciprocity propert...
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ژورنال
عنوان ژورنال: IEEE Journal on Selected Areas in Communications
سال: 2014
ISSN: 0733-8716
DOI: 10.1109/jsac.2014.2328173