KPI/KQI-Driven Coordinated Multipoint in 5G: Measurements, Field Trials, and Technical Solutions

Song, Guochao; Wang, Wei; Chen, Da; Jiang, Tao

doi:10.1109/mwc.2018.1800041

Cited by 23 publications

(15 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…KPIs are the measure of network performance. KPIs-based method is more convenient for network optimization, however, KPIs cannot represent QoE all the time [44]. QoE is not well estimated using KPIs data.…”

Section: Related Workmentioning

confidence: 99%

Semi-Supervised Machine Learning Aided Anomaly Detection Method in Cellular Networks

Wang

Liu

et al. 2020

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

The ever-increasing amount of data in cellular networks poses challenges for network operators to monitor the quality of experience (QoE). Traditional key quality indicators (KQIs)-based hard decision methods are difficult to undertake the task of QoE anomaly detection in the case of big data. To solve this problem, in this paper, we propose a KQIs-based QoE anomaly detection framework using semi-supervised machine learning algorithm, i.e., iterative positive sample aided one-class support vector machine (IPS-OCSVM). There are four steps for realizing the proposed method while the key step is combining machine learning with the network operator's expert knowledge using OCSVM. Our proposed IPS-OCSVM framework realizes QoE anomaly detection through soft decision and can easily fine-tune the anomaly detection ability on demand. Moreover, we prove that the fluctuation of KQIs thresholds based on expert knowledge has a limited impact on the result of anomaly detection. Finally, experiment results are given to confirm the proposed IPS-OCSVM framework for QoE anomaly detection in cellular networks.

show abstract

Section: Related Workmentioning

confidence: 99%

Semi-Supervised Machine Learning Aided Anomaly Detection Method in Cellular Networks

Wang

Liu

et al. 2020

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

show abstract

“…Then, the signal transmission experiment using the two-OAM-mode antenna systems is presented. Signals are modulated by FBMC (Filter Bank Multicarrier) and realized on a USRP RIO software defined radio (SDR) platform [34].…”

Section: B Signal Transmission Experimentsmentioning

confidence: 99%

Multiplexed OAM Wave Communication With Two-OAM-Mode Antenna Systems

et al. 2019

Self Cite

View full text Add to dashboard Cite

In order to improve the channel capacity, waves carrying orbital angular momentum (OAM) in communication systems have attracted much attention. A two-OAM-mode antenna system, which works at 2.4 GHz, is proposed in this paper. And a signal transmission experiment is performed based on a pair of the proposed antenna systems. The proposed antenna system, which has the planar structure, is composed of two patch antenna arrays, two feeding networks, and one common ground plane. Then, reflection coefficients, transmission coefficients, radiation patterns, and phase distributions of the proposed antenna system are measured, and the measurement results verify the effectiveness of this antenna system in generating two OAM modes (OAM mode 1 and OAM mode 2). The measurement results are in good agreement with the simulation results. Then, the signal transmission system is built based on a pair of the proposed antenna systems. Isolation between the OAM mode 1 transceiver channel and the OAM mode 2 transceiver channel is more than 20 dB. Video signals modulated by filter bank multicarrier are de-modulated simultaneously at the receiving terminal. It means that the two-OAM-mode antenna system has the potential to enhance the channel capacity. INDEX TERMS Orbital angular momentum (OAM), patch antenna, antenna array, FBMC.

show abstract

“…Then, however, it is not possible to guarantee a certain level of link reliability of the system. One remedy is interference coordination, e.g., utilizing coordinated scheduling or beamforming techniques [17][18][19], which can alleviate inter-link interference when accurate channel state information at the transmitter (CSIT) is available and thereby facilitate an analytic link outage characterization.…”

Section: Introductionmentioning

confidence: 99%

Reliable Multi-Point Transmissions Over Directional MISO TWDP Fading Channels

Schwarz

Rupp

2021

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

In this paper, we consider wireless transmissions over directional multiple-input single-output (MISO) two wave with diffuse power (TWDP) fading channels, subject to interference over the same type of channel. TWDP fading is known to exhibit an outage behavior that can be even worse than Rayleigh fading and has experimentally been observed in a number of vehicular channel measurement campaigns. To enhance the reliability of multi-point transmissions over MISO TWDP fading channels, we propose a zero-forcing based coordinated beamforming scheme, for which we can analytically characterize and optimize the outage probability of the multi-point transmissions. Based on the developed outage expressions, we furthermore propose a greedy coordinated scheduling approach that attempts to maximize the achievable rate of the system. Finally, we propose a transmission rate adaptation scheme for fixed size packet transmissions, which supports reliable and at the same time resource efficient multi-point transmissions.

show abstract

KPI/KQI-Driven Coordinated Multipoint in 5G: Measurements, Field Trials, and Technical Solutions

Cited by 23 publications

References 13 publications

Semi-Supervised Machine Learning Aided Anomaly Detection Method in Cellular Networks

Semi-Supervised Machine Learning Aided Anomaly Detection Method in Cellular Networks

Multiplexed OAM Wave Communication With Two-OAM-Mode Antenna Systems

Reliable Multi-Point Transmissions Over Directional MISO TWDP Fading Channels

Contact Info

Product

Resources

About