2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)最新文献_第6页

LiDAR aided Wireless Networks - LoS Detection and Prediction based on Static Maps 激光雷达辅助无线网络-基于静态地图的LoS检测和预测

2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall) Pub Date : 2022-09-01 DOI: 10.1109/VTC2022-Fall57202.2022.10012788

Nalin Jayaweera, Dileepa Marasinghe, Nandana Rajatheva, Sami-Jukka Hakola, T. Koskela, Oskari Tervo, J. Karjalainen, E. Tiirola, J. Hulkkonen

{"title":"LiDAR aided Wireless Networks - LoS Detection and Prediction based on Static Maps","authors":"Nalin Jayaweera, Dileepa Marasinghe, Nandana Rajatheva, Sami-Jukka Hakola, T. Koskela, Oskari Tervo, J. Karjalainen, E. Tiirola, J. Hulkkonen","doi":"10.1109/VTC2022-Fall57202.2022.10012788","DOIUrl":"https://doi.org/10.1109/VTC2022-Fall57202.2022.10012788","url":null,"abstract":"The mmWave communication up to 71 GHz is already specified in 3rd generation partnership project (3GPP)5G New Radio (NR), and communication in sub-THz bands is being studied for 6G widely in the academia and industry. Operation with very narrow beamwidths and much higher bandwidths in contrast to Frequency Range 1 (sub-6 GHz) can cater to the high data rate requirements at the expense of extra signal processing burden to overcome the unfavourable conditions such as high attenuation and scattering in the presence of obstacles. Such severe signal power attenuation caused by an obstacle may degrade the network performance due to link failures occurring as a result of line-of-sight (LoS) to non-LoS (NLoS) transitions. These limitations raise the necessity of a sensing system to collect situational awareness data to assist the wireless communication network. This work proposes a method to improve the LoS detection and user localization accuracy using multiple light detection and ranging (LiDAR) sensors co-located in access points (APs). We also propose an approach to predict the LoS transitions based on static LiDAR maps and the proposed method detected the LoS transition 400ms before its occurrence.","PeriodicalId":326047,"journal":{"name":"2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129245754","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

An Autonomous Valet Parking Algorithm for Path Planning and Tracking 基于路径规划与跟踪的自主代客泊车算法

2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall) Pub Date : 2022-09-01 DOI: 10.1109/VTC2022-Fall57202.2022.10012883

Yutao Shi, Ping Wang, Xinhong Wang

{"title":"An Autonomous Valet Parking Algorithm for Path Planning and Tracking","authors":"Yutao Shi, Ping Wang, Xinhong Wang","doi":"10.1109/VTC2022-Fall57202.2022.10012883","DOIUrl":"https://doi.org/10.1109/VTC2022-Fall57202.2022.10012883","url":null,"abstract":"Autonomous valet parking (AVP) is a popular application scenario for autonomous driving in the future. For AVP path planning, the original hybrid A-star ($mathrm{A}^{*}$) algorithm has problems of large search costs, searching towards wrong directions and generating unreasonable parking paths. To solve these problems and generate a better path, a path planning method is proposed for typical AVP scenarios. The method divides path planning into global part and local part. The global path is planned based on graph search and state lattice algorithm. Then the hybrid $mathrm{A}^{*}$ algorithm and Reeds-Shepp curve are modified to complete the local path planning, and finally a complete path that can be executed by the vehicle is generated. Then, a controller for path tracking based on model predictive control (MPC) is designed to overcome the shortcomings of traditional proportional integral derivative (PID) control such as overshoot and difficulty in precise control. Finally, the feasibility of the path planning and tracking method is verified by simulation using MATLAB and the vehicle simulation software CarSim. The results show that the planning efficiency and rationality are improved by implementing the proposed method, and the parking process can be done well with a small tracking error.","PeriodicalId":326047,"journal":{"name":"2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125503504","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

Embrace Imperfect Datasets: New Time Representation for RFF Identification 拥抱不完美数据集：用于识别 RFF 的新时间表示法

2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall) Pub Date : 2022-09-01 DOI: 10.1109/VTC2022-Fall57202.2022.10013065

Xinyu Qi, A. Hu

引用次数: 0

Symbiotic Backscatter System over Cascaded Fading Channels 级联衰落信道上的共生反向散射系统

2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall) Pub Date : 2022-09-01 DOI: 10.1109/VTC2022-Fall57202.2022.10012713

Haiyang Ding, M. Elkashlan, Hancheng Yang, Haipeng Li, Kewei Xin

{"title":"Symbiotic Backscatter System over Cascaded Fading Channels","authors":"Haiyang Ding, M. Elkashlan, Hancheng Yang, Haipeng Li, Kewei Xin","doi":"10.1109/VTC2022-Fall57202.2022.10012713","DOIUrl":"https://doi.org/10.1109/VTC2022-Fall57202.2022.10012713","url":null,"abstract":"Cascaded fading plays a vital role in backscatter communications but its effect on the transmission robustness of symbiotic backscatter system has not been well understood yet. In this paper, we investigate this effect under three symbiotic mechanisms, namely commensal, parasitic and competitive schemes. Our analysis indicates that: 1) For the commensal scheme, cascaded backscatter fading incurs an inferior outage performance of the backscatter system in comparison with the counterpart over single-hop backscatter fading; 2) For the parasitic scheme, cascaded backscatter fading leads to a superior outage performance of the primary system in comparison with the counterpart over single-hop backscatter fading; 3) For the backscatter system, regardless of single-hop or cascaded backscatter fading, the exact outage probability of the parasitic scheme overlaps with the asymptotic of the commensal scheme; 4) For the competitive scheme, as the decoding threshold of the primary system approaches zero, the asymptotic outage performance of the primary system in cascaded and single-hop backscatter fading tend to be the same; and 5) Unlike single-hop backscatter fading, as the decoding threshold of backscatter signal approaches zero, the outage probability of the competitive and parasitic schemes for the backscatter system in cascaded backscatter fading approaches that of the competitive scheme for the primary system.","PeriodicalId":326047,"journal":{"name":"2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123365213","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

Early Wildfire Detection using UAVs Integrated with Air Quality and LiDAR Sensors 使用集成空气质量和激光雷达传感器的无人机进行早期野火探测

2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall) Pub Date : 2022-09-01 DOI: 10.1109/VTC2022-Fall57202.2022.10012938

Doaa Rjoub, Ahmad Alsharoa, Ala’eddin Masadeh

{"title":"Early Wildfire Detection using UAVs Integrated with Air Quality and LiDAR Sensors","authors":"Doaa Rjoub, Ahmad Alsharoa, Ala’eddin Masadeh","doi":"10.1109/VTC2022-Fall57202.2022.10012938","DOIUrl":"https://doi.org/10.1109/VTC2022-Fall57202.2022.10012938","url":null,"abstract":"Every year, wildfires burn out countless hectares of lands, resulting in ecological, environmental, and economic damage. This paper presents an energy management system that consists of an unmanned aerial vehicle (UAV) equipped with air quality and light detection and ranging (LiDAR) sensors for monitoring forests and recognizing flames early. We develop a novel approach for autonomous patrolling system. This approach has the advantage of effectively detecting wildfire incidents, while optimizing the energy consumption of the UAV’s battery to cover large areas. When a wildfire is detected, the UAV is able to transmit real-time data, such as sensor readings and LiDAR data, to the nearby communication tower. We formulate an optimization problem that minimizes the overall UAV’s energy consumption due to patrolling. Based on the pollutant dispersion mode, we propose a novel UAV patrolling solution based on genetic algorithm with the goal of maximizing the patrolling coverage of the UAV taking into account the UAV’s battery constraints. More specifically, we optimize the UAV’s flight path using a plume dispersion model to find the concentration of common gases of wildfire. Finally, simulations are presented to show the efficiency and validity of the solution.","PeriodicalId":326047,"journal":{"name":"2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122254163","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: 5

Resource Allocation Policies for Hybrid Power-Grid and Harvested Energy Communication Systems 混合电网与能量采集通信系统的资源分配策略

2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall) Pub Date : 2022-09-01 DOI: 10.1109/VTC2022-Fall57202.2022.10012745

Iman Valiulahi, C. Masouros, Abdelhamid Salem

引用次数: 0

A Low-Complexity DNN-Based DoA Estimation Method for EHF and THF Cell-Free Massive MIMO 一种基于低复杂度dnn的EHF和THF无小区大规模MIMO DoA估计方法

2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall) Pub Date : 2022-09-01 DOI: 10.1109/VTC2022-Fall57202.2022.10012869

S. S. Hosseini, B. Champagne, Xiaohua Chang

{"title":"A Low-Complexity DNN-Based DoA Estimation Method for EHF and THF Cell-Free Massive MIMO","authors":"S. S. Hosseini, B. Champagne, Xiaohua Chang","doi":"10.1109/VTC2022-Fall57202.2022.10012869","DOIUrl":"https://doi.org/10.1109/VTC2022-Fall57202.2022.10012869","url":null,"abstract":"We study the problem of direction of arrival (DoA) estimation for cell-free massive MIMO (m-MIMO) systems operating over extremely high frequency (EHF) and terahertz (THF) bands, where the wireless channel can effectively be modeled by a line-of-sight path. For this model, a low-complexity deep neural network (DNN)-based method is proposed to estimate the DoA of a radio wave impinging on an access point (AP) equipped with an antenna array. To train the DNN, a special feature set is proposed obtained from the first superdiagonal entries of the spatial correlation matrix. This selection of features makes it possible to employ a DNN with only a few low-dimensional layers, which considerably speeds up training and processing. More importantly, it is shown that the trained DNN is robust against quantization noise in the array snapshot data. This property makes the centralized implementation of the proposed DNN-based method feasible, which is particularly well-suited for cell-free m-MIMO. Through extensive simulations, the new method is shown to achieve an estimation performance that nearly matches or exceeds that of classical bechmark methods, but with considerably reduced complexity.","PeriodicalId":326047,"journal":{"name":"2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115245356","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

Integration of Aerial-Relay-Based Network With Terrestrial Network Towards B5G/6G Evolution 面向B5G/6G演进的空中中继网络与地面网络融合

2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall) Pub Date : 2022-09-01 DOI: 10.1109/VTC2022-Fall57202.2022.10012851

T. Guo

{"title":"Integration of Aerial-Relay-Based Network With Terrestrial Network Towards B5G/6G Evolution","authors":"T. Guo","doi":"10.1109/VTC2022-Fall57202.2022.10012851","DOIUrl":"https://doi.org/10.1109/VTC2022-Fall57202.2022.10012851","url":null,"abstract":"Aimed at boosting spectrum utilization towards B5G/6G evolution, this paper studies an overlying network that is built by using “dummy” aerial relays and shares the frequency band with a primary network, where the low-cost relays without using sophisticated transmit beamforming generate interference to the primary network. The main objectives are, by using collaborative transmitter precoding, i) to increase Signal-to-Leakage Ratio (SLR) which is the ratio of signal power at the intended receiver to interference power at an unintended receiver, and ii) to reduce the overlying network’s total transmit power. A performance trade-off framework based on robust optimization is proposed to balance these two contradicting objectives, with consideration of the relays’ asynchronicity and channel measurement errors. It is found that the relays’ amplification is a sensitive parameter that can be tuned together with the transmitter precoder in optimization. To overcome the problem of unknown uncertainty set in the max-min optimization, a practical technique based on multiple measurements, semi-analytical robust design, is proposed and tested. Performance evaluation results suggest the proposed overlying network is promising toward the two objectives.","PeriodicalId":326047,"journal":{"name":"2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120966376","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

Practical Evaluation Method for Large IRS: RCS Pattern Synthesis of Sub-IRS with Mutual Coupling 大型IRS实用评价方法:相互耦合的子IRS RCS图综合

2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall) Pub Date : 2022-09-01 DOI: 10.1109/VTC2022-Fall57202.2022.10012810

H. Matsuno, Tatsuya Nagao, Takuya Ohto, Takahiro Hayashi, Michihiro Harada

{"title":"Practical Evaluation Method for Large IRS: RCS Pattern Synthesis of Sub-IRS with Mutual Coupling","authors":"H. Matsuno, Tatsuya Nagao, Takuya Ohto, Takahiro Hayashi, Michihiro Harada","doi":"10.1109/VTC2022-Fall57202.2022.10012810","DOIUrl":"https://doi.org/10.1109/VTC2022-Fall57202.2022.10012810","url":null,"abstract":"Intelligent reflecting surfaces (IRSs) have recently been attracting attention as solutions for coverage hole problems in mobile communication areas. To utilize the IRS for mobile networks, the reflecting signal strength of IRS is evaluated in advance to estimate the improvement of coverage and interference with other wireless systems. In order to evaluate an actual IRS precisely, the reflecting phase and amplitude should be evaluated considering the mutual coupling effect. In addition, a large measurement system is required to satisfy the far-field conditions of IRS. This makes the evaluation of large IRS difficult. To solve this problem, we propose a practical evaluation method of a large IRS by synthesizing RCS patterns of small IRSs (sub-IRS). To verify the validity, we also formulate mutual coupling effects on the IRS. Through numerical evaluation, the influence of mutual coupling between each sub-IRS is reduced by increasing the size of the sub-IRS. In addition, through evaluation with the electromagnetic simulator, the RCS pattern of the proposed method reproduced that of a large IRS.","PeriodicalId":326047,"journal":{"name":"2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114272954","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

Aircraft-to-Aircraft Channel Measurements in the VHF/UHF Band: Analysis of the Line-of-Sight and Lake-Reflected Channel Components VHF/UHF波段的机对机信道测量:视距和湖反射信道分量分析

2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall) Pub Date : 2022-09-01 DOI: 10.1109/VTC2022-Fall57202.2022.10012832

Miguel A. Bellido-Manganell, U. Fiebig, M. Walter

{"title":"Aircraft-to-Aircraft Channel Measurements in the VHF/UHF Band: Analysis of the Line-of-Sight and Lake-Reflected Channel Components","authors":"Miguel A. Bellido-Manganell, U. Fiebig, M. Walter","doi":"10.1109/VTC2022-Fall57202.2022.10012832","DOIUrl":"https://doi.org/10.1109/VTC2022-Fall57202.2022.10012832","url":null,"abstract":"This paper presents a statistical analysis of the main components of the aircraft-to-aircraft channel based on the wideband channel measurements conducted between two aircraft in the VHF/UHF band at 250 MHz. We consider multiple flight segments where the aircraft flew at diverse altitudes and used different antennas for transmission and for reception, alternating between a top and a bottom antenna. In each scenario of interest, we analyse the power and the small-scale fading of the envelope of the direct line-of-sight component and of the specular reflection component off a lake. For both components, we compare the measured average power with the theoretical free-space path loss, and the measured small-scale fading with multiple well-known statistical distributions. The results show that the envelope of both components is strongly affected by the geometry, the location of the antennas, and by the aircraft fuselage itself. The different scenarios yield significant variations in the average power and in the distribution of the small-scale fading. A Rician distribution shows the best fit for the line-of-sight component envelope. The component reflected off the lake can be modeled by a Rician distribution when it is not obstructed or strongly affected by the aircraft fuselage, and by a Nakagami distribution otherwise. The parameters of the best-fitting distributions, including the Rician K-factor, are provided for the different scenarios.","PeriodicalId":326047,"journal":{"name":"2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125139868","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