2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring)最新文献_第9页

Physical Cell ID Detection Probability Using Synchronization Signals of NB-IoT Radio Interface in 28-GHz Band 基于28ghz频段NB-IoT无线电接口同步信号的物理小区ID检测概率

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring) Pub Date : 2020-05-01 DOI: 10.1109/VTC2020-Spring48590.2020.9128375

Daisuke Inoue, K. Ota, M. Sawahashi, Satoshi Nagata

{"title":"Physical Cell ID Detection Probability Using Synchronization Signals of NB-IoT Radio Interface in 28-GHz Band","authors":"Daisuke Inoue, K. Ota, M. Sawahashi, Satoshi Nagata","doi":"10.1109/VTC2020-Spring48590.2020.9128375","DOIUrl":"https://doi.org/10.1109/VTC2020-Spring48590.2020.9128375","url":null,"abstract":"This paper presents the physical-layer cell identity (PCID) detection probability using the narrowband primary synchronization signal (NPSS) and narrowband secondary synchronization signal (NSSS) based on the narrowband Internet-of-Things (NB-IoT) radio interface considering frequency offset and the maximum Doppler frequency in the 28-GHz band. Simulation results show that autocorrelation based NPSS detection achieves almost the same PCID detection probability as that for cross-correlation based NPSS detection using frequency offset estimation and compensation before the NPSS received timing detection, while the former achieves a lower level of computational complexity than the latter. We also show that when using autocorrelation based NPSS detection, the loss in the PCID detection probability at the carrier frequency of $f_{c}=28$ GHz compared to that for $f_{c}=3.5$ GHz is only approximately 5% at the average received SNR of 0dB when the frequency error of a temperature compensated crystal oscillator of a set of user equipment (UE) is 20 ppm. Therefore, we conclude that the multiplexing schemes and sequences of NPSS and NSSS based on the NB-IoT radio interface associated with autocorrelation based NPSS detection will be applicable to the 28-GHz frequency spectra.","PeriodicalId":348099,"journal":{"name":"2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132205557","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: 0

A Semi-Distribution Congestion Control Algorithm for Event-Driven M2M Communications 事件驱动M2M通信的半分布拥塞控制算法

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring) Pub Date : 2020-05-01 DOI: 10.1109/VTC2020-Spring48590.2020.9129534

Liu Yang, Heng Liu, P. Fan, L. Hao, Cong Ouyang

引用次数: 0

Link-level Performance Evaluation of an ULNOMA system with TDD constructed by hardware 基于硬件构造TDD的ULNOMA系统链路级性能评估

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring) Pub Date : 2020-05-01 DOI: 10.1109/VTC2020-Spring48590.2020.9129122

Hayato Tezuka, Masafumi Moriyama, K. Takizawa, F. Kojima

{"title":"Link-level Performance Evaluation of an ULNOMA system with TDD constructed by hardware","authors":"Hayato Tezuka, Masafumi Moriyama, K. Takizawa, F. Kojima","doi":"10.1109/VTC2020-Spring48590.2020.9129122","DOIUrl":"https://doi.org/10.1109/VTC2020-Spring48590.2020.9129122","url":null,"abstract":"The 5G will not only offer high speed and greater capacity communication but also support the IoT. To support IoT, it is important that next generation NodeB (gNB) will be able to deal with massive uplink signals transmitted from IoT devices. Non-orthogonal multiple access (NOMA) is one of the effective methods to handle massive signals from the IoT devices. However, when NOMA is used for downlink, it is necessary to perform signal separation on the user equipment (UE), which suffers from heavy load on UE. We consider that it is better to employ orthogonal multiple access (OMA) for downlink to prevent too much computational cost and power consumption for UE. Hence, we have studied a system that uses NOMA for uplink and OMA for downlink. The feature of our system is that single carrier is used for uplink to reduce peak to average power ratio (PAPR). Although the single carrier transmission with NOMA will be in demand in the future, most of the research is computer simulation. In this paper, we demonstrated and evaluated our system using hardware. We measured the performance difference between uplink using NOMA and downlink using OMA in terms of packet error rate (PER) to obtain tips to improve uplink performance. From the result, we confirmed that uplink NOMA could be performed well in hardware. However, to improve reliability, it is necessary for the system to incorporate some techniques such as diversity with uplink NOMA. Without the techniques, the uplink with NOMA is less reliable than downlink with OMA so far.","PeriodicalId":348099,"journal":{"name":"2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129211661","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

CCA Threshold Impact on the MAC Layer Performance in IoT Networks CCA阈值对物联网网络MAC层性能的影响

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring) Pub Date : 2020-05-01 DOI: 10.1109/VTC2020-Spring48590.2020.9129003

Abderrahman Ben Khalifa, Razvan Stanica

引用次数: 1

A Low Complexity Baseband Signal Compression for Data Transport in LTE-A and NR Systems 一种用于LTE-A和NR系统数据传输的低复杂度基带信号压缩

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring) Pub Date : 2020-05-01 DOI: 10.1109/VTC2020-Spring48590.2020.9128449

Sungyoon Cho, Joohyun Do, Inhyoung Kim, Min-Goo Kim

引用次数: 0

Blockchain-based Content-oriented Surveillance Network 基于区块链的面向内容的监控网络

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring) Pub Date : 2020-05-01 DOI: 10.1109/VTC2020-Spring48590.2020.9128532

Xin Qi, Keping Yu, Zheng Wen, San Hlaing Myint, Yutaka Katsuyama, Toshio Sato, K. Tokuda, Takuro Sato

{"title":"Blockchain-based Content-oriented Surveillance Network","authors":"Xin Qi, Keping Yu, Zheng Wen, San Hlaing Myint, Yutaka Katsuyama, Toshio Sato, K. Tokuda, Takuro Sato","doi":"10.1109/VTC2020-Spring48590.2020.9128532","DOIUrl":"https://doi.org/10.1109/VTC2020-Spring48590.2020.9128532","url":null,"abstract":"For the reason of public security, there are many surveillance actives taken places in either open areas or small areas. During an outburst of public eventuality, it is necessary to surveil public individuals. Based on the great number of populations nowadays, it is critical to propose efficient and secured data delivery network for surveillance networks. There are many different methods to surveil and secure an area, such as cameras and radio wave scanners. The modern surveillance networks are usually based on video content deliveries which consumes much network bandwidth and data security performance. Because it needs to efficiently deliver and protect the data generated by different devices. We propose a content-oriented IoT surveillance network, currently under development, which aims to identify dangerous individuals with various sensors and track the individuals through areas. This paper describes the concept of simulated passive imaging and identifying for conceal objects, various sensors association for person tracking and its traffic volume reduction. The data security in the network uses trust verification concept from blockchain technology. There are simulation and experiment to prove the work valid.","PeriodicalId":348099,"journal":{"name":"2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125409570","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: 3

Empirical Investigation of SDR-based DSRC Communication 基于sdr的DSRC通信实证研究

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring) Pub Date : 2020-05-01 DOI: 10.1109/VTC2020-Spring48590.2020.9128539

Steven Knowles Flanagan, Xiaohong Peng, Irfan Yusoff, Jianhua He

引用次数: 1

Doppler Power Characteristics Obtained from Calibrated Channel State Information for Human Activity Recognition 基于校准信道状态信息的多普勒功率特性研究

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring) Pub Date : 2020-05-01 DOI: 10.1109/VTC2020-Spring48590.2020.9129187

Ahmed Abdelgawwad, A. Catala, M. Pätzold

{"title":"Doppler Power Characteristics Obtained from Calibrated Channel State Information for Human Activity Recognition","authors":"Ahmed Abdelgawwad, A. Catala, M. Pätzold","doi":"10.1109/VTC2020-Spring48590.2020.9129187","DOIUrl":"https://doi.org/10.1109/VTC2020-Spring48590.2020.9129187","url":null,"abstract":"This paper demonstrates the time-variant (TV) Doppler power characteristics of human activities using measured channel state information (CSI). We model the measured CSI as a complex channel transfer function corresponding to a 3D non-stationary multipath fading channel consisting of a fixed transmitter, a fixed receiver, fixed scatterers representing fixed objects, and a cluster of moving scatterers representing a moving person performing some human activities. We demonstrate the relationship between the TV Doppler frequency caused by each moving scatterer and the rate of change of its corresponding TV propagation delay. Furthermore, we express the TV mean Doppler shift in terms of the path gains of the fixed scatterers, the TV path gains, and the TV Doppler frequencies of the moving scatterers. To provide an insight into the TV Doppler power characteristics of the measured calibrated CSI, we employ the spectrogram from which we derive the TV mean Doppler shift. Finally, we present the spectrograms and the TV mean Doppler shifts of the measured calibrated CSI for different human activities. The results show the possibility of designing human activity recognition systems using commercial Wi-Fi devices by employing deep learning or machine learning algorithms.","PeriodicalId":348099,"journal":{"name":"2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126820609","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: 3

Frequency and Time Spreading for Uplink URLLC Transmission 上行URLLC传输的频率和时间扩展

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring) Pub Date : 2020-05-01 DOI: 10.1109/VTC2020-Spring48590.2020.9128389

S. Tsai, Chia-Hsin Lai, Xiu-Sheng Li

引用次数: 0

VTC2020-Spring 2020 Preface vtc2020 -春季2020前言

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring) Pub Date : 2020-05-01 DOI: 10.1109/vtc2020-spring48590.2020.9129499

引用次数: 0