User Scheduling Based on Horizontal and Vertical Double Codebook for 3D MU-MIMO

Zhang, Guomei; Li, Jie; Sun, Hao; Gao, Zhenzhen

doi:10.1109/vtcfall.2017.8287994

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…Overall, joint DoA estimation in horizontal and vertical directions can be computationally prohibitive due to the increased search space. Alternatively, the proposed algorithm can be sequentially applied to horizontal analog subarrays and vertical analog subarrays to determine azimuth DoA and elevation DoA, respectively, like that in [32]- [34].…”

Section: Extension Of the Proposed Methodsmentioning

confidence: 99%

High-Resolution and Low-Complexity Direction of Arrival Estimation for Hybrid Array of Subarrays

et al. 2022

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In this paper, the problem of direction-of-arrival (DoA) estimation for a hybrid array of subarrays is considered in millimeter-wave communication systems. Unlike much prior work using the outputs from the analog subarrays with symbol-wise processing, the proposed framework jointly exploits multiple outputs in time domain for high-resolution DoA estimation. With block-wise processing, the proposed method designs an optimal hybrid combiner maximizing beamforming gain, while reducing a receiver complexity based on fast Fourier transform filtering for each blocked signal. The performance of the proposed method is analyzed, including estimation performance with a limited training signal, training overhead, and computational complexity. An extension of the proposed method to a uniform planar array case is also discussed. Numerical results show the effectiveness of the proposed algorithm.INDEX TERMS Millimeter-wave, DoA estimation, hybrid beamforming, array of subarrays I. INTRODUCTION

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Section: Extension Of the Proposed Methodsmentioning

confidence: 99%

High-Resolution and Low-Complexity Direction of Arrival Estimation for Hybrid Array of Subarrays

et al. 2022

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“…To reduce the intercell interference and limit the energy consumption, power is allocated due to the scheduling scheme [20], [25]- [27]. Codebook is utilized to limit the system computing complexity [28]. Beamforming is effective for making advantage of the directivity of mmWave and reduce the interference [29].…”

Section: B Radio Resource Managementmentioning

confidence: 99%

“…To the best knowledge of the authors, related works have not been working on similar schemes by now. Reference [28] proposed a combined horizontal and vertical codebook-based scheduling scheme for 3D multi-user MIMO system. Dowhuszko et al [29] have been working on randomly beamforming as well as the opportunistic scheduling for machine-to-machine (M2M) scenario.…”

Section: Higher Level Controlmentioning

confidence: 99%

A Joint Scheduling and Beamforming Scheme for RoF-Aided MC-SSN

Chen

Zhang

2019

IEEE Access

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Applied to harsh scenarios, the mission critical sensors and sensor network (MC-SSN) is expected to be of high capacity, density, and low cost. Both the industry and research community have a consensus on the need for energy and spectrum saving. Radio over fiber (RoF) system is promising for low latency and flexible system of high efficiency. In this paper, we consider the RoF-aided MC-SSN system serving the sensors with massive multiple-input multiple-output (MIMO) equipped. Based on this model, the base stations, relays, and other network elements can set up connections with each other via optical fiber or wireless links. Aiming to maximize the energy efficiency, this paper proposes a scheme including two aspects: 1) scheduling of the sensors based on the direction of arrival sensing of interference an 2) massive MIMO beamforming matrices generation based on a codebook. The numerical results show that the proposed scheduling and resource allocation method can achieve sufficient throughput with reduced power consumption for the RoF-aided MC-SSN system.

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Joint Antenna Selection and User Scheduling in Downlink Multi-User MIMO Systems

Zhang

et al. 2018

2018 IEEE 4th International Conference on Computer and Communications (ICCC)

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User Scheduling Based on Horizontal and Vertical Double Codebook for 3D MU-MIMO

Cited by 4 publications

References 13 publications

High-Resolution and Low-Complexity Direction of Arrival Estimation for Hybrid Array of Subarrays

High-Resolution and Low-Complexity Direction of Arrival Estimation for Hybrid Array of Subarrays

A Joint Scheduling and Beamforming Scheme for RoF-Aided MC-SSN

Joint Antenna Selection and User Scheduling in Downlink Multi-User MIMO Systems

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