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A Scalable Limited Feedback Design for Network MIMO using Per-Cell Product Codebook
[article]
2010
arXiv
pre-print
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In this paper, we propose a scalable limited feedback design for network MIMO systems with multiple base stations, multiple users and multiple data streams for each user. ...
We propose a limited feedback framework using per-cell product codebooks, along with a low-complexity feedback indices selection algorithm. ...
In this paper, we shall propose a novel scalable limited feedback mechanism using per-cell product codebooks 3 to address the dynamic MIMO configurations and heterogeneous path loss effects, along with ...
arXiv:1008.0047v1
fatcat:x2pgvkrxqrao7jco5ogw6zbzbi
MIMO technologies for the wireless future
2008
2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications
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) precoding is used for open loop precoding. ...
Network coordination (multisite MIMO) can be applied in this case, which can achieve significant improvements for the users including those at the cell edge, based on coordinated transmission and reception ...
SU-MIMO with limited feedback ofB bit per user. Semi-correlated channel, 4 Tx antennas, 2 Rx antennas per user. ...
doi:10.1109/pimrc.2008.4699969
dblp:conf/pimrc/BauchA08
fatcat:24gb5o2ubbdblowfl7gqpbh2wa
Quantization based on per-cell codebook in cooperative multi-cell systems
2011
2011 IEEE Wireless Communications and Networking Conference
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In this paper, we address per-cell codebook based quantization for CoMP channels, which is flexible and scalable in practice. ...
Exploiting the degrees of freedom provided by using the per-cell codebook, we present and compare several ways of generating global codebook and selecting per-cell codewords for CoMP channel quantization ...
Joint Codeword Selection Toward Cell-edge Users To reuse the codebooks designed for i.i.d. channels in CoMP channels, the authors in [3] proposed a per-cell codebook based limited feedback scheme. ...
doi:10.1109/wcnc.2011.5779427
dblp:conf/wcnc/SuHY11
fatcat:m3knyhkxgfcyxnazltj4vpzvna
HBF MU-MIMO with Interference-Aware Beam Pair Link Allocation for Beyond-5G mm-Wave Networks
[article]
2024
arXiv
pre-print
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We present a comprehensive study of practical multi-cell mm-wave networks and demonstrate that HBF MU-MIMO without interference-aware BPL allocation experiences strong residual interference which limits ...
IABA solves the network sum throughput optimization via either a distributed or a centralized BPL allocation using dedicated CSI reference signals for candidate BPL monitoring. ...
Interference management for HBF MU-MIMO [11] - [18] typically treats the UE co-scheduling problem within a single cell [11] - [14] , or limited multi-cell scenarios [15] - [18] , designing the digital ...
arXiv:2402.17573v1
fatcat:nmgiputzbfhkjewmjgvma6liui
Downlink MIMO in LTE-advanced: SU-MIMO vs. MU-MIMO
2012
IEEE Communications Magazine
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of a non-transparent MU-MIMO design in a real-life network. ...
The same codebook is also used for the purpose of channel feedback. ...
doi:10.1109/mcom.2012.6146493
fatcat:usr5mjxzerg6xo25oqauxhyriu
Overview of Full-Dimension MIMO in LTE-Advanced Pro
2017
IEEE Communications Magazine
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2016 pre-print arXiv:1601.00019v3 fatcat:qeva2i7qwjbc7a7czctvgrft6iOther Versions
We present key features for FD-MIMO systems, a summary of the major issues for the standardization and practical system design, and performance evaluations for typical FD-MIMO scenarios. ...
Multiple-input multiple-output (MIMO) systems with a large number of basestation antennas, often called massive MIMO, have received much attention in academia and industry as a means to improve the spectral ...
The implicit feedback (RI, horizontal and vertical PMIs, CQI) is used for the CSI feedback.• FD-MIMO systems with:-Non-precoded CSI-RS: A composite codebook of horizontal and vertical codebooks is used ...
doi:10.1109/mcom.2016.1500743rp
fatcat:kmbmc4ljxbdb3dpeblssksqsze
Hybrid Precoding for mmWave V2X Doubly-Selective Multiuser MIMO Systems
[article]
2021
arXiv
pre-print
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The design of the digital precoders for the two variants requires the limited feedback sent from the vehicles to BS. ...
We refer to the random vector quantization (RVQ) and the beamsteering codebooks to quantize the feedbacks for variants I and II, respectively, since the perfect feedback requires long overhead and large ...
VQ as well as the Grassmanian codebooks are designed for limited feedback assuming that these codebooks are fixed regardless of channel variations. ...
arXiv:2103.09444v2
fatcat:io2563v7fvavxapgbwwvn62lwq
Bit Allocation Between Per-Cell Codebook and Phase Ambiguity Quantization for Limited Feedback Coordinated Multi-Point Transmission Systems
2012
IEEE Transactions on Communications
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In this paper, we study per-cell codebook based limited feedback scheme, which is highly desirable for CoMP systems due to its scalability and flexibility. ...
We then propose an adaptive bit allocation algorithm to divide a given amount of feedback bits between the per-cell codebooks for single-cell channel direction quantization and a codebook for PA quantization ...
This suggests that in practical CoMP-JP systems it is highly desirable to design per-cell codebook based limited feedback schemes [9, 10] , where single-cell codebooks are applied for quantizing the channels ...
doi:10.1109/tcomm.2012.071312.110510
fatcat:a2agqx57ljgunpchqnrwqrsm2u
Hekaton
2015
Proceedings of the 21st Annual International Conference on Mobile Computing and Networking - MobiCom '15
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In the evaluations, Hekaton can improve single-cell throughput by up to 2.5× over conventional MU-MIMO with a single antenna per RF chain, while using the same transmit power. ...
Large-scale multiuser MIMO (MU-MIMO) systems have the potential for multi-fold scaling of network capacity. ...
Acknowledgement We thank the anonymous shepherds for their helpful comments on the paper. This research was supported in part by the NSF under Grant CNS-1318292, CNS-1343363 and CNS-1350039. ...
doi:10.1145/2789168.2790116
dblp:conf/mobicom/XieCZSKR15
fatcat:v7lkyudabrdtlfawsmfnpocxje
Directional Spatial Channel Estimation For Massive FD-MIMO in Next Generation 5G Networks
[article]
2018
arXiv
pre-print
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Full-dimensional (FD) channel state information at transmitter (CSIT) has always been a major limitation of the spectral efficiency of cellular multi-input multi-output (MIMO) networks. ...
This letter proposes an FD-directional spatial channel estimation algorithm for frequency division duplex massive FD-MIMO systems. ...
For the elevation scanning, a DFT-based codebook a v κ (ϕ) is used, and the final FD-KP-based codebook is generated by W(θ, ϕ) = T ⊗ a v κ (ϕ). ...
arXiv:1806.03639v1
fatcat:4f6sjlzcgzawbfjmxlpkcl2qci
Augmented Deep Unfolding for Downlink Beamforming in Multi-cell Massive MIMO With Limited Feedback
[article]
2022
arXiv
pre-print
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In limited feedback multi-user multiple-input multiple-output (MU-MIMO) cellular networks, users send quantized information about the channel conditions to the associated base station (BS) for downlink ...
In particular, the classic WMMSE beamformer is unrolled and a deep neural network (DNN) is leveraged to pre-process its input to enhance the performance. ...
There have been many works that investigated beamforming design for MIMO systems with limited feedback [4] - [6] . ...
arXiv:2209.01436v1
fatcat:kfydgtd2xnhs5exxsa2z2ytrbq
Multi-Cell MIMO Cooperative Networks: A New Look at Interference
2010
IEEE Journal on Selected Areas in Communications
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This paper presents an overview of the theory and currently known techniques for multi-cell MIMO (multiple input multiple output) cooperation in wireless networks. ...
Multicell MIMO cooperation concepts are examined from different perspectives, including an examination of the fundamental information-theoretic limits, a review of the coding and signal processing algorithmic ...
Because the codebooks for cooperative networks contain more codewords than for conventional networks, additional feedback bits will be required to index the codebooks, most likely leading to an increase ...
doi:10.1109/jsac.2010.101202
fatcat:k4f5hsuz6jfpzi6fqhena2f5iq
Team decision for the cooperative MIMO channel with imperfect CSIT sharing
2010
2010 Information Theory and Applications Workshop (ITA)
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Among application scenarios, we find the so-called network MIMO setup. ...
The transmitters are assumed to be sharing user data and aim at serving a group of users in a distributed MIMO broadcast-like fashion. ...
ACKNOWLEDGMENT This work has been performed in the framework of the European research project ARTIST4G, which is partly funded by the European Union under its FP7 ICT Objective 1.1 -The Network of the ...
doi:10.1109/ita.2010.5454132
dblp:conf/ita/ZakhourG10
fatcat:kgq2c2kh3nbvrerc6disoq7dpm
Recent Advances in Acquiring Channel State Information in Cellular MIMO Systems
2019
Infocommunications journal
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of pilot-data resources becomes a critical design aspect. ...
of pilot-data resources becomes a critical design aspect. ...
A new codebook and feedback design are implemented to support spatial multiplexing with up to eight independent spatial streams and enhanced MU-MIMO transmissions. ...
doi:10.36244/icj.2019.3.2
fatcat:xuvq575enbb4ncbrmhp7wlxwha
5G K-SimSys for Open/Modular/Flexible System-level Simulation: Overview and Its Application to Evaluation of 5G Massive MIMO
2021
IEEE Access
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To this end, several codebooks in the LTE and NR are designed to exploit a correlation between antenna ports for closely spaced antenna elements with limited angular spread. ...
Fig. 12 shows the average cell spectral efficiency of both sharing schemes for the different number of UEs per sector. ...
doi:10.1109/access.2021.3093460
fatcat:5dsx6mv3ina75fxiugjk2jptk4
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