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2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)最新文献

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Adaptive Beam Size Design for LEO Satellite Networks with Doppler Shift Compensation 基于多普勒频移补偿的低轨道卫星网络自适应波束设计
2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2022-08-24 DOI: 10.1109/APWCS55727.2022.9906490
S. Han, W. Lee, W. Shin, Jae-Hyun Kim
{"title":"Adaptive Beam Size Design for LEO Satellite Networks with Doppler Shift Compensation","authors":"S. Han, W. Lee, W. Shin, Jae-Hyun Kim","doi":"10.1109/APWCS55727.2022.9906490","DOIUrl":"https://doi.org/10.1109/APWCS55727.2022.9906490","url":null,"abstract":"Over the last few years, Low Earth Orbit (LEO) satellite communication systems have been gaining much attention for fulfilling seamless global coverage requirements for 5G and beyond networks. One of the critical issues in the LEO satellite links is large Doppler shift caused by extremely high mobility of the LEO satellites. Motivated by this, LEO satellite beam size problems are tackled in this paper regarding Doppler shift and the LEO satellite altitudes. We make use of a simple Doppler shift calculation method, and assume a practical Doppler shift compensation scenario to reduce the burden at the ground user terminal. Two STARLINK satellites orbital planes which are in the range of LEO and Very-Low Earth Orbit (VLEO) altitudes are used. We evaluate the bit error rate (BER) performance versus the beam size according to the satellite altitudes, carrier frequency, and subcarrier spacing of Orthogonal Frequency Division Multiplexing (OFDM). The reliable LEO satellite beam size can be decided from the simulation results. Notably, it can help design the beam size of the LEO satellite networks based on 5G standard.","PeriodicalId":321579,"journal":{"name":"2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122474726","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
Outdoor Localization Based on RSS Ranging Aided by Pedestrian Dead Reckoning in GPS Restricted Scenario GPS受限场景下行人航位推算辅助的RSS测距户外定位
2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2022-08-24 DOI: 10.1109/APWCS55727.2022.9906494
Ja-Myoung Choi, Keunwoo Kim, Seong-Cheol Kim
{"title":"Outdoor Localization Based on RSS Ranging Aided by Pedestrian Dead Reckoning in GPS Restricted Scenario","authors":"Ja-Myoung Choi, Keunwoo Kim, Seong-Cheol Kim","doi":"10.1109/APWCS55727.2022.9906494","DOIUrl":"https://doi.org/10.1109/APWCS55727.2022.9906494","url":null,"abstract":"The dependence on Global Positioning System (GPS) in outdoor localization is increasing day by day. For the security/surveillance operations, location information is important for both command centers and field commanders. However, GPS information is difficult to use in case of GPS disturbances and GPS shaded area. In this paper, we propose a localization method for ad-hoc sensor network using Received Signal Strength (RSS) based ranging, Pedestrian Dead Reckoning (PDR) and last available GPS coordinates. Since the RSS based ranging error gets very large for some harsh environment and the cumulative error of PDR increases over time, each of two methods is difficult to be applied standalone for localization in prolonged outdoor environment. To provide reliable localization performance, we propose a fusion algorithm that complements the problems of two methods mentioned above. Moreover, we apply an empirical path loss model for three typical outdoor environments, comparing two methods with the proposed method, respectively. Simulation results show that our proposed method complements the absence of GPS update and presents better localization accuracy than when using only PDR or RSS based ranging.","PeriodicalId":321579,"journal":{"name":"2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130760962","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
Analysis of surface code under the restricted number of CNOT gates 限制CNOT闸数条件下的表面代码分析
2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2022-08-24 DOI: 10.1109/APWCS55727.2022.9906509
Jonghyun Lee, Jinyoung Ha, Yujin Kang, Jun Heo
{"title":"Analysis of surface code under the restricted number of CNOT gates","authors":"Jonghyun Lee, Jinyoung Ha, Yujin Kang, Jun Heo","doi":"10.1109/APWCS55727.2022.9906509","DOIUrl":"https://doi.org/10.1109/APWCS55727.2022.9906509","url":null,"abstract":"To date, the surface code has become a promising candidate for quantum error correcting codes because of its high threshold, nearest gate operations and low weight stabilizers. Here, we assume that the number of CNOT gates is restricted because of the quantum crosstalk due to residual inter-qubit coupling or max channels per pulse gate. We thus calculated the effective physical error rate in this case and determine the surface code distance accordingly. The optimal code distance was obtained based on the logical error rate performance estimation of the surface code for some T1 and T2 time.","PeriodicalId":321579,"journal":{"name":"2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131708140","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
DDPG-based Deep Reinforcement Learning for Loitering Munition Mobility Control: Algorithm Design and Visualization 基于ddpg的游荡弹机动控制深度强化学习:算法设计与可视化
2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2022-08-24 DOI: 10.1109/APWCS55727.2022.9906493
Hyun-Yong Lee, Won Joon Yun, Soyi Jung, Jae-Hyun Kim, Joongheon Kim
{"title":"DDPG-based Deep Reinforcement Learning for Loitering Munition Mobility Control: Algorithm Design and Visualization","authors":"Hyun-Yong Lee, Won Joon Yun, Soyi Jung, Jae-Hyun Kim, Joongheon Kim","doi":"10.1109/APWCS55727.2022.9906493","DOIUrl":"https://doi.org/10.1109/APWCS55727.2022.9906493","url":null,"abstract":"Drone technology is estimated for its potential to be applied in many industries, including logistics, broadcasting, telecommunications, and warfare technology. In particular, in the field of modern warfare such as the current war in Ukraine, the use of drones has become an essential element. This paper includes a loitering munition to attack a single ground target in the scenario. A simulation environment for drone attack is built based on the 3D platform Unity, and learning is performed by applying DDPG, a reinforcement learning algorithm that can be used in continuous action space. Through the specific result, it is possible to achieve our purpose to attack target exactly.","PeriodicalId":321579,"journal":{"name":"2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114478029","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: 2
A Study on the Feature-level Perception Sharing of Autonomous Vehicles 自动驾驶汽车特征级感知共享研究
2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2022-08-24 DOI: 10.1109/APWCS55727.2022.9906488
Youngseok Kim, Sunwook Hwang, S. Bahk
{"title":"A Study on the Feature-level Perception Sharing of Autonomous Vehicles","authors":"Youngseok Kim, Sunwook Hwang, S. Bahk","doi":"10.1109/APWCS55727.2022.9906488","DOIUrl":"https://doi.org/10.1109/APWCS55727.2022.9906488","url":null,"abstract":"Recently, remarkable progress has been made in autonomous driving. However, there are still many things to do for fully autonomous driving. One of them is perception sharing, which utilizes vehicular communication to maximize the cognitive ability of the vehicle. In this paper, we identify recent research trends by surveying studies on perception sharing. Moreover, we introduce papers dealing with more practical scenarios and present the future works given to perception sharing.","PeriodicalId":321579,"journal":{"name":"2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114498462","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
Capacity-Fairness Tradeoff for Optimal Power Allocation in Cluster-wise MU-MIMO System 集群型MU-MIMO系统最优功率分配的容量公平权衡
2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2022-08-24 DOI: 10.1109/APWCS55727.2022.9906515
Sijie Xia, Chang Ge, Qiang Chen, F. Adachi
{"title":"Capacity-Fairness Tradeoff for Optimal Power Allocation in Cluster-wise MU-MIMO System","authors":"Sijie Xia, Chang Ge, Qiang Chen, F. Adachi","doi":"10.1109/APWCS55727.2022.9906515","DOIUrl":"https://doi.org/10.1109/APWCS55727.2022.9906515","url":null,"abstract":"The cluster-wise multi-user multi-input multi-output (MU-MIMO), division of the ultra-dense network in the beyond fifth-generation (B5G) system into several small-scale MU-MIMO, is an effective way to reduce the computational complexity of the system operations. Reasonable power allocation is excepted for the improvement of system performance by adjusting the inter-cluster-interference. In this paper, we consider an optimal power allocation (OPA) method to realize the flexible tradeoff between sum capacity maximization and user fairness maximization while guaranteeing the minimum user capacity under the total transmit power constraint to meet the needs of different application scenarios. The simulation results verify that the proposed OPA method can effectively adjust the tradeoff between sum capacity and user fairness.","PeriodicalId":321579,"journal":{"name":"2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114728390","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
FP-based Sub-band Precoding Scheme for the MU MIMO-OFDM Systems 基于fp的MU MIMO-OFDM系统子带预编码方案
2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2022-08-24 DOI: 10.1109/APWCS55727.2022.9906487
K. Lee
{"title":"FP-based Sub-band Precoding Scheme for the MU MIMO-OFDM Systems","authors":"K. Lee","doi":"10.1109/APWCS55727.2022.9906487","DOIUrl":"https://doi.org/10.1109/APWCS55727.2022.9906487","url":null,"abstract":"Full-dimensional (FD) precoding is a cutting-edge technology that can be employed at the base station (BS) to enhance the spectral/energy efficiency or connection reliability of a multi-user (MU), multi-input-multi-output (MIMO), orthogonal frequency-division multiplexing (OFDM) system at the expense of high channel state information (CSI) feedback overheads and precoder design complexity. As the broadband millimeter-wave (mmWave) and terahertz (THz) channels, which will be encountered in future mobile networks, are observed to exhibit sparse scattering characteristics with short delay spread, the OFDM subcarrier spacing is likely to be much smaller than the coherence bandwidth; thus, this facilitates the sub-band (SB) precoding scheme as a viable alternative with greatly reduced complexity. In this paper, a SB precoding scheme aiming to maximize total channel capacity is proposed, where the coefficients are derived from optimization of a multi-ratio fractional programming (FP) problem. To evaluate its efficacy, simulation is conducted, where the total sum-rate will be presented and compared with other FD benchmark methods.","PeriodicalId":321579,"journal":{"name":"2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123624159","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
Interference Analysis Method for 5G System to Radio Altimeter 5G系统对无线电高度计的干扰分析方法
2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2022-08-24 DOI: 10.1109/APWCS55727.2022.9906499
Shuzhi Liu, Jiaqi Li, Seung-Hoon Hwang, H. Son, Youngjun Chong
{"title":"Interference Analysis Method for 5G System to Radio Altimeter","authors":"Shuzhi Liu, Jiaqi Li, Seung-Hoon Hwang, H. Son, Youngjun Chong","doi":"10.1109/APWCS55727.2022.9906499","DOIUrl":"https://doi.org/10.1109/APWCS55727.2022.9906499","url":null,"abstract":"The radio altimeter (RA) is the only \"sensor\" on the aircraft that can directly measure the altitude above the terrain, providing critical altitude data for pilot situational awareness and aircraft navigation, instruction, flight guidance and control systems during critical phases of flight, especially during the approach and landing phases. This paper analyzed the causes of the interference of aircraft radio altimeter with 5G radio network frequencies, clarified the status and difficulties of the risk assessment of RA system by 5G interference, and provided theoretical support for the subsequent related research.","PeriodicalId":321579,"journal":{"name":"2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130712431","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: 2
A Novel Frequency Hopping-Aided FMCW Integrated Radar and Communication System 一种新型跳频辅助FMCW集成雷达与通信系统
2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2022-08-24 DOI: 10.1109/APWCS55727.2022.9906505
Meng-Xun Gu, Ming-Chun Lee, Ta-Sung Lee
{"title":"A Novel Frequency Hopping-Aided FMCW Integrated Radar and Communication System","authors":"Meng-Xun Gu, Ming-Chun Lee, Ta-Sung Lee","doi":"10.1109/APWCS55727.2022.9906505","DOIUrl":"https://doi.org/10.1109/APWCS55727.2022.9906505","url":null,"abstract":"While the frequency-modulated continuous-wave (FMCW) based scheme has been considered as a candidate for realizing integrated radar-communication (RadCom) systems, it still suffers from the low transmission rate. To resolve this issue, we in this paper propose a frequency hopping-aided FMCW RadCom system along with the corresponding radar detection and communication signal demodulation approaches. Our proposed system can significantly improve the transmission rate with only slight degradation of the radar performance. Since the interference could degrade the system performance, we discuss the interference problem and the interference avoidance solution. By simulations, we validate the efficacy of the proposed system.","PeriodicalId":321579,"journal":{"name":"2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127885289","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: 2
Skeleton-oriented Autonomous Reference Point Deployment for Wireless Indoor Localization 面向骨骼的自主参考点无线室内定位部署
2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2022-08-24 DOI: 10.1109/APWCS55727.2022.9906514
Teng-Yun Lee, Chih-Yu Chen, An-Hung Hsiao, Chun-Jie Chiu, Kai-Ten Feng
{"title":"Skeleton-oriented Autonomous Reference Point Deployment for Wireless Indoor Localization","authors":"Teng-Yun Lee, Chih-Yu Chen, An-Hung Hsiao, Chun-Jie Chiu, Kai-Ten Feng","doi":"10.1109/APWCS55727.2022.9906514","DOIUrl":"https://doi.org/10.1109/APWCS55727.2022.9906514","url":null,"abstract":"With the prosperity of location-based services in recent years, fingerprinting techniques for position estimation have been thriving due to its accuracy and cost-effectiveness compared to other methods. However, the time-consuming and labor-intensive process of data collection on specific reference points in fingerprinting schemes is always the barrier to real world implementation. In this paper, we proposed a novel robot automation system to serve as an alternative method for laborious data collection via human being. We designed the skeleton-oriented autonomous reference point deployment (SARD) system for wireless indoor localization, which integrates floor plan generation, reference point deployment, and data acquisition. The autonomous robot is capable of building the fingerprint database of an unknown space in a single spatial time traversal run. According to the result, compared to human efforts, the proposed SARD system could establish the database in a relatively shorter time period of around 40 minutes and achieve a low average error distance of 1.39 meters in position estimation.","PeriodicalId":321579,"journal":{"name":"2022 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133748728","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
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