2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)最新文献_第5页

An Adaptive Machine Learning Based Approach for the Cancellation of Second-Order-Intermodulation Distortions in 4G/5G Transceivers 基于自适应机器学习的4G/5G收发器二阶互调失真消除方法

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891087

Oliver Ploder, O. Lang, T. Paireder, M. Huemer

{"title":"An Adaptive Machine Learning Based Approach for the Cancellation of Second-Order-Intermodulation Distortions in 4G/5G Transceivers","authors":"Oliver Ploder, O. Lang, T. Paireder, M. Huemer","doi":"10.1109/VTCFall.2019.8891087","DOIUrl":"https://doi.org/10.1109/VTCFall.2019.8891087","url":null,"abstract":"The limited transmitter-to-receiver stop-band isolation of the duplexers in long term evolution and 5G frequency division duplex transceivers induces leakage signals from the transmitter(s) (Tx) into the receiver(s) (Rx). These leakage signals are the root cause of a multitude of self- interference (SI) problems in the receiver path(s) diminishing a receiver's sensitivity. This work deals with second-order intermodulation distortion, arising from the Tx leakage signal in combination with a coupling between the RF- and local oscillator-ports of the Rx IQ-mixer. We propose a novel adaptive architecture, utilizing neural networks, to cancel this type of interference. In contrast to traditional adaptive filter solutions, the proposed architecture can be used even if there is no model of the system available, making it robust against modeling noise and flexible in terms of interferences that it is able to cancel. The proposed architecture outperforms existing work based on least mean squares (LMS) algorithms and converges as fast as recursive least squares algorithms while maintaining comparably low complexity as the LMS approach.","PeriodicalId":6713,"journal":{"name":"2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)","volume":"20 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86274797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Outer Code-Based HARQ Retransmission for Multicast/Broadcast Services in 5G 5G多播/广播业务中基于外部码的HARQ重传

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891304

Jeongho Yeo, J. Bang, Hyoungju Ji, Younsun Kim, Juho Lee

引用次数: 6

A 3D Air-to-Air Wideband Non-Stationary Channel Model of UAV Communications 无人机通信的三维空对空宽带非平稳信道模型

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891290

Zhangfeng Ma, B. Ai, R. He, Z. Zhong

引用次数: 5

Evaluation of Feedback and Feedforward Coupling of Synthetic Aperture Navigation with LTE Signals LTE信号合成孔径导航反馈与前馈耦合评价

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891521

Ali A. Abdallah, Z. Kassas

引用次数: 11

A Study on Antenna Beamforming Method Considering Movement of Solar Plane in HAPS System HAPS系统中考虑太阳飞机运动的天线波束形成方法研究

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891546

Kenji Hoshino, Shoichi Sudo, Y. Ohta

{"title":"A Study on Antenna Beamforming Method Considering Movement of Solar Plane in HAPS System","authors":"Kenji Hoshino, Shoichi Sudo, Y. Ohta","doi":"10.1109/VTCFall.2019.8891546","DOIUrl":"https://doi.org/10.1109/VTCFall.2019.8891546","url":null,"abstract":"High-altitude platform station (HAPS) has attracted considerable attention as a new promising platform to provide mobile wireless communication services with ultra-wide coverage and resilience against disaster. Because of its low-delay characteristics, HAPS can provide wireless service directly to smartphones used in terrestrial networks. In a HAPS system, it is required to employ multiple cells to accommodate high communication traffic. Furthermore, the HAPS movement caused by its turning flight or variations in the stratospheric wind is known to result in the displacement of cells projected on the ground. Therefore, the HAPS movement with multicells configuration results in several handovers and disconnections. Some research has shown that this challenge can be addressed by employing antenna beamforming based on a planar or flat-shaped array antenna. Because the target diameters of coverages are only 60 to 80 km, these simple antennas can easily cover the whole coverage area; thus, they can compensate for the displacement easily. However, to achieve ultra-wide coverage over 80-km diameter, drastic change of its antenna design is needed. Therefore, this paper proposes a new antenna structure and its beamforming methods assuming a solar-plane- based HAPS with a 200-km diameter. Computer simulation quantitatively reveals that the proposed antenna can well compensate for the effect of a displaced cell.","PeriodicalId":6713,"journal":{"name":"2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)","volume":"59 2","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91423059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 32

A Collaborative Approach to Finding Available Parking Spots 寻找可用停车位的合作方法

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891107

Takamasa Higuchi, Seyhan Uçar, O. Altintas

引用次数: 6

Anomalous Data Detection in Vehicular Networks Using Traffic Flow Theory 基于交通流理论的车辆网络异常数据检测

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891471

M. Ranaweera, A. Seneviratne, D. Rey, M. Saberi, V. Dixit

引用次数: 8

Prediction-Based User Plane Handover for TCP Throughput Enhancement in Ultra-Dense Cellular Networks 基于预测的超密集蜂窝网络中TCP吞吐量增强的用户平面切换

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891124

Yan Peng, Yiqing Zhou, Ling Liu, Jinhong Yuan, Jinglin Shi, Jintao Li

{"title":"Prediction-Based User Plane Handover for TCP Throughput Enhancement in Ultra-Dense Cellular Networks","authors":"Yan Peng, Yiqing Zhou, Ling Liu, Jinhong Yuan, Jinglin Shi, Jintao Li","doi":"10.1109/VTCFall.2019.8891124","DOIUrl":"https://doi.org/10.1109/VTCFall.2019.8891124","url":null,"abstract":"In ultra-dense cellular networks (UDNs) with user/control plane (U/C) splitting, frequent handovers in user planes are unavoidable. This seriously degrades MS's transmission control protocol (TCP) throughput. This paper proposes a prediction-based user plane handover scheme to improve the TCP throughput in UDNs. Firstly, based on algorithms used in recommender systems, a mobility prediction algorithm called content-based collaborative hybrid filters (CCHF) is proposed to predict the target small base station (SBS). When the mobile station (MS) moves into the cell-edge of the source SBS, it can set up connections to the predicted target SBS and the source SBS simultaneously. An accurate prediction and a simultaneous connection can enhance the signal to interference and noise ratio (SINR) at cell-edge and reduce the handover interruption ratio (HIR). Thus packet loss can be reduced and the MS's TCP throughput will be improved. Simulations are carried out to verify the effectiveness of the proposed CCHF-handover. It is shown that using CCHF, the prediction accuracy of random trajectory can be improved by more than 100% compared with existing prediction algorithm. Moreover, the CCHF-handover improves the average TCP throughput significantly by more than 3 times compared with that of existing handover schemes.","PeriodicalId":6713,"journal":{"name":"2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)","volume":"58 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83470391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Adjustable Soft List Decoding for Polar Codes 可调软列表解码的极地代码

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891359

Bowen Feng, J. Jiao, Kexin Liang, Shaohua Wu, Ye Wang, Qinyu Zhang

引用次数: 3

Multipath-Optimal UAV Trajectory Planning for Urban UAV Navigation with Cellular Signals 基于蜂窝信号的城市无人机导航多路径最优轨迹规划

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891218

S. Ragothaman, Mahdi Maaref, Z. Kassas

引用次数: 13