Results 11 to 20 of about 45,671 (180)
On X-channels with feedback and delayed CSI
2012 IEEE International Symposium on Information Theory Proceedings, 2012 The sum degrees of freedom (DoF) of the two-user MIMO X-channel is characterized in the presence of output feedback and delayed channel state information (CSI). The number of antennas at each transmitters is assumed to be M and the number of antennas at each of the receivers is assumed to be N.
Tandon, Ravi +3 more
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CSI Feedback Reduction for MIMO Interference Alignment [PDF]
IEEE Transactions on Signal Processing, 2013 30 pages, 7 figures, accepted for publication by IEEE transactions on signal processing in June ...
Rao, Xiongbin +2 more
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Non-Canonical Subiculum Circuit Organization and Function. [PDF]
HippocampusABSTRACT The subiculum is highly interconnected with the hippocampus, sub‐regions of the thalamus, and the entorhinal and retrosplenial cortices. Together, these regions form a distributed network that plays critical roles in spatial cognition and learning and memory.
Gao P, Cao W, Nitz DA, Xu X.
europepmc +2 more sources
Study of channel state information feedback based on artificial intelligence
Dianxin kexue, 2022 Accurate acquisition of CSI (channel state information) is the key to the performance of massive MIMO.In current communication systems, when the reciprocity of uplink and downlink is not ideal, codebook-based CSI feedback is used for downlink CSI ...
Qiuping HUANG +5 more
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Deep Convolutional Compression For Massive MIMO CSI Feedback [PDF]
2019 IEEE 29th International Workshop on Machine Learning for Signal Processing (MLSP), 2019 Coded caching provides significant gains over conventional uncoded caching by creating multicasting opportunities among distinct requests. Massive multiple-input multiple-output (MIMO) systems require downlink channel state information (CSI) at the base station (BS) to better utilize the available spatial diversity and multiplexing gains. However, in a
Q. Yang +2 more
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Deep data hiding‐based channel state information feedback within audio signals
Electronics Letters, 2023 Deep learning‐based channel state information (CSI) hiding within images has been introduced to eliminate the downlink CSI feedback overhead in frequency division duplexing systems.
Yun Hu, Ronghui Zhang
doaj +1 more source
CSI Feedback in Correlated Slow-Fading Channels [PDF]
IEEE Communications Letters, 2011 This letter studies the effect of quantized channel state information (CSI) feedback on the average rate of correlated channels. Demonstrating the general rate optimization problem, the results are obtained for both delayed and delay-free feedback conditions under different short- and long-term power allocation strategies.
Behrooz Makki, Thomas Eriksson
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Space Division Multiple Access with a Sum Feedback Rate Constraint [PDF]
, 2006 On a multi-antenna broadcast channel, simultaneous transmission to multiple users by joint beamforming and scheduling is capable of achieving high throughput, which grows double logarithmically with the number of users.
Andrews, Jeffrey G. +2 more
core +1 more source
CSI feedback allocation in multicell MIMO channels [PDF]
2012 IEEE International Conference on Communications (ICC), 2012 In this work1, we consider the joint precoding across K transmitters (TXs), sharing the knowledge of the user's data symbols being transmitted to K single-antenna receivers (RXs). We consider a distributed channel state information (DCSI) configuration where each TX has its own local estimate of the overall multiuser MIMO channel.
de Kerret, Paul, Gesbert, David
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Enhanced CSI Acquisition for FDD Multi-User Massive MIMO Systems
IEEE Access, 2018 Massive multiple-input multiple-output (MIMO) is envisioned to meet the growing spectral efficiency (SE) requirement in next generation cellular systems.
Fangchao Zhang +3 more
doaj +1 more source