A Dynamic 3-D Wideband GBSM for Cooperative Massive MIMO Channels in Intelligent High-Speed Railway Communication Systems

Zhou, Tao; Yi, Yang; Liu, Liu; Cheng, Tao; Liang, Yiqun

doi:10.1109/twc.2020.3040392

Cited by 15 publications

(7 citation statements)

References 46 publications

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“…In addition, the application of this method in millimeter-wave MIMO systems is a prospect of this paper. Our work considers the PIC-OPT receiver in stationary scenarios, and the extended work including channel modeling and estimation in some high-mobility scenarios can be considered [20,21].…”

Section: Discussionmentioning

confidence: 99%

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A Semiblind Receiver for a Two-Way UAV-Aided PIC System Based on the PARAFAC Model

Han

Liu

et al. 2022

International Journal of Antennas and Propagation

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In this paper, we consider a two-way communication system using the unmanned aerial vehicle (UAV) as a relay (UAV-aided). This system eliminates impulse interference through an adaptive filter based on the least mean square (LMS) and uses the received signal transmitted by the UAVs to construct a parallel factor (PARAFAC) model. Based on the identifiability condition of the PARAFAC model, a pulse interference cancellation orthogonal pilot tensor (PIC-OPT) receiver without iteration is proposed. Our algorithm is also used in millimeter-wave to achieve the acquisition of channel information. Compared with the least squares method, the simulation results demonstrate the superiority of the proposed semiblind receiver in terms of the relative mean square error and bit error rate.

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Section: Discussionmentioning

confidence: 99%

“…It is assumed that C 3 satisfes k rank, and H 1 and H 2 are random matrices, so the factor matrices of the PARAFAC model all satisfy K rank. (20) that can be expressed as follows:…”

Section: The Pic-opt Receivermentioning

confidence: 99%

A Semiblind Receiver for a Two-Way UAV-Aided PIC System Based on the PARAFAC Model

Han

Liu

et al. 2022

International Journal of Antennas and Propagation

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“…According to research, CBSM [23], [33]- [36] is the only focus of the approaches and analyses utilized to enhance CR-NOMA system performance. Due to nonstationary phenomena and spherical effects, CBSM is used for theoretical study and has lower accuracy for real-world mMIMO systems [12], [37].…”

Section: A Motivationmentioning

confidence: 99%

“…Similarly, the response of the u th UE antenna port with regards to the 3D channel model is The final 3D GBSM channel model [33], [46], [47] of the communication link in the proposed system in Fig. 3 between a single antenna receiving port u th and a CA transmitter antenna port s th [14] is…”

Section: A Proposed 3d Gbsm Modelsmentioning

confidence: 99%

Decode and Forward Coding Scheme for Cooperative Relay NOMA System with Cylindrical Array Transmitter

Tweneboah-Koduah¹,

Affum²,

Kwakye³

et al. 2022

IJACSA

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The Non-Orthogonal Multiple Access (NOMA) technique has enormous potential for wireless communications in the fifth generation (5G) and beyond. Researchers have recently become interested in the combination of NOMA and cooperative relay. Even though geometric-based stochastic channel models (GBSM) have been found to provide better, practical, and realistic channel properties of massive multiple-input multipleoutput (mMIMO) systems, the assessment of Cooperative Relay NOMA (CR-NOMA) with mMIMO system is largely based on correlated-based stochastic channel model (CBSM). We believe that this is a result of computational difficulties. Again, not many discussions have been done in academia about how well CR-NOMA systems perform when large antenna transmitters with the GBSM channel model are used. As a result, it is critical to investigate the mMIMO CR-NOMA system with the GBSM channel model that takes into account channel parameters such as path loss, delay profile, and tilt angle. Moreover, the coexistence of large antenna transmitters and coding methods requires additional research. In this research, we propose a twostage, three-dimension (3D) GBSM mMIMO channel model from the 3GPP, in which the transmitter is modelled as a cylindrical array (CA) to investigate the efficiency of CR-NOMA. By defining antenna elements placement vectors using the actual dimensions of the antenna array and incorporating them into the threedimension (3D) channel model, we were able to increase the analytical tractability of the 3D GBSM. Bit-error rates, achievable rates, and outage probabilities (OP) are investigated utilizing the decode-and-forward (DF) coding method: the results are compared with that of a system using the CBSM channel model. Despite the computational difficulties of the proposed GBSM system, there is no difference in performance between CBSM and GBSM.

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“…e high-speed rail mobile communication network optimization system interfaces with the network optimization platform and directly calls the data or analysis results of the network optimization platform [6]. e system not only realizes the daily KPI optimization analysis of professional network management, but also carries out multi-level tracking and positioning analysis for single base station, single cell, single carrier frequency, and single user, making network optimization work more targeted and accurate.…”

Section: Introductionmentioning

confidence: 99%

Research on High-Speed Railway Communication Strategy Based on LIFI Technology

Chen¹,

2022

Advances in Multimedia

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In order to improve the effect of high-speed railway communication, this paper studies the high-speed railway communication strategy combined with LIFI technology and improves the effect of high-speed railway communication through intelligent communication methods. Moreover, this paper studies the access point allocation problem in indoor LiFi/WiFi hybrid network, fully considers the dynamic change of network load, and introduces a dynamic load balancing algorithm that determines AP allocation in hybrid network based on the data transmission rate as the switching threshold. In addition, this paper proposes two AP allocation methods, such as dynamic switching threshold and minimum data rate constraint, to construct a reliable high-speed railway communication model. The experimental results verify that the high-speed railway communication strategy based on LIFI technology proposed in this paper can effectively improve the high-speed railway communication effect.

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A Dynamic 3-D Wideband GBSM for Cooperative Massive MIMO Channels in Intelligent High-Speed Railway Communication Systems

Cited by 15 publications

References 46 publications

A Semiblind Receiver for a Two-Way UAV-Aided PIC System Based on the PARAFAC Model

A Semiblind Receiver for a Two-Way UAV-Aided PIC System Based on the PARAFAC Model

Decode and Forward Coding Scheme for Cooperative Relay NOMA System with Cylindrical Array Transmitter

Research on High-Speed Railway Communication Strategy Based on LIFI Technology

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