Results 1 to 10 of about 367 (107)
An efficient location-based pilot assignment in Cell-Free Massive MIMO
ICT Express, 2023 Cell-free Massive multiple-input multiple-output can offer many degrees of freedom for the high data rate and coverage probability. This network topology is one of the cutting-edge technologies potentially applied for next-generation wireless ...
Trinh Van Chiên, Hoa Nguyen
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Smart Pilot Assignment for Massive MIMO [PDF]
IEEE Communications Letters, 2015 4 pages, 3 ...
Linglong Dai +2 more
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Exploring pilot assignment methods for pilot contamination mitigation in massive MIMO systems
Cogent Engineering, 2020 In massive multi-input multi-output (MIMO) antenna system, the performance is restricted by inter-cell interference called pilot contamination. However, acquisition of channel state information for channel estimation introduces overheads of pilots ...
Angelina Misso +2 more
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Pilot Assignment in Cell-Free Massive MIMO Based on the Hungarian Algorithm [PDF]
IEEE Wireless Communications Letters, 2021 4 pages, 4 figures, IEEE Wireless Communications ...
Carmen D'Andrea +2 more
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IEEE Access, 2020 In the multi-cell massive multiple-input multiple-output (MIMO) systems, the mitigation of pilot contamination is an important issue in the semi-blind channel estimations.
Cheng Hu, Rongfang Song, Hong Wang
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A Novel Pilot Assignment Scheme in Massive MIMO Networks
IEEE Wireless Communications Letters, 2018 In this letter, we propose a novel pilot assignment scheme for the pilot contamination problem in massive multiple-input multiple-output multi-cell networks. Based on the asymptotic signal-to-interference-plus-noise ratio (SINR), the proposed pilot assignment scheme adopts the harmonic SINR utility function to quantify the fairness of all users in the ...
Shuai Ma, Li Xu, Shuguang Cui
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Pilot Assignment Algorithm for Uplink Massive MIMO Systems
The Journal of Korean Institute of Communications and Information Sciences, 2015 This paper introduces a new pilot assignment algorithm for uplink Massive multiple-input multiple-output (MIMO) systems. Since the conventional pilot assignment algorithm has the performance degradation compared to the optimal algorithm which performs the exhaustive search, we propose a new pilot assignment algorithm using Pre-determined Interference ...
Seokju Jang, Justin Kong, Inkyu Lee
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Scalable Pilot Assignment Scheme for Cell-Free Large-Scale Distributed MIMO With Massive Access
IEEE Access, 2021 With the explosive growth of mobile communication technology, the number of access terminals has increased dramatically, which will make the pilot contamination caused by pilot reuse extremely worse due to limited pilot resources.
Jiamin Li +4 more
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Overloaded Pilot Assignment with Pilot Decontamination for Cell-Free Systems
2023 IEEE Wireless Communications and Networking Conference (WCNC), 2023 The pilot contamination in cell-free massive multiple-input-multiple-output (CF-mMIMO) must be addressed for accommodating a large number of users. In previous works, we have investigated a decontamination method called subspace projection (SP). The SP separates interference from co-pilot users by using the orthogonality of the principal components of ...
Noboru Osawa +6 more
openaire +2 more sources
Joint User Clustering and Graph Coloring Based Pilot Assignment for Cell-Free Massive MIMO Systems
Sensors, 2023 Pilot contamination due to pilot reuse seriously mitigates the performance of the cell-free massive multiple-input multiple-output (MIMO) systems. In this paper, we propose a joint pilot assignment scheme that employs user clustering and graph coloring ...
Xinyu Huang +4 more
doaj +1 more source