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Sports Assistant: Similarity Calculation for Sports Activity 体育助理:体育活动相似度计算
2023 VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2023-08-01 DOI: 10.1109/APWCS60142.2023.10234062
Kun-Ru Wu, Yi-En Li, Yu-Yang Ding, Yu-Chee Tseng
{"title":"Sports Assistant: Similarity Calculation for Sports Activity","authors":"Kun-Ru Wu, Yi-En Li, Yu-Yang Ding, Yu-Chee Tseng","doi":"10.1109/APWCS60142.2023.10234062","DOIUrl":"https://doi.org/10.1109/APWCS60142.2023.10234062","url":null,"abstract":"When participating in general sports activities, proper posture and movement are important to improve performance and prevent injury. In this paper, we propose a system to observe sports activity and calculate the difference between two people (for example, beginners and professional layers). The pose difference could help people improve their posture. The system consists of deep learning methods and similarity calculation. The deep learning method will detect human pose and output keyjoints. If the sport requires extra equipments, e.g. baseball bat, the system uses object detection to extract the keyjoints. Next, it calculates the pose similarity between two people. The developed system could help people know whether their posture is correct and which body parts could be improved.","PeriodicalId":375211,"journal":{"name":"2023 VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126516906","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
Wound Drainage Monitoring and Warning System 伤口引流监测预警系统
2023 VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2023-08-01 DOI: 10.1109/APWCS60142.2023.10234039
Tong-Jin Chou, Wei Wang, C. Chin, Hsiu-Chuan Wu, Young-Ching Chou, Yu-Chee Tseng, Cheng-Kuan Lin
{"title":"Wound Drainage Monitoring and Warning System","authors":"Tong-Jin Chou, Wei Wang, C. Chin, Hsiu-Chuan Wu, Young-Ching Chou, Yu-Chee Tseng, Cheng-Kuan Lin","doi":"10.1109/APWCS60142.2023.10234039","DOIUrl":"https://doi.org/10.1109/APWCS60142.2023.10234039","url":null,"abstract":"A patient’s wound healing status can be characterized by the amount, type, color and smell of wound drainage fluid. Typically, patients undergo the removal of drainage tubes within a time frame of 24 to 72 hours following surgery. This early removal of drain aims to reduce the risk of retrograde infection and enhances the overall comfort during the recovery process. Based on monitoring and analyzing the flow and color changes of drainage fluid, we propose a monitoring and warning system for wound drainage. This system can inform the medical staff of a patient’s wound status and help analyze the wound healing degree in a real-time manner.","PeriodicalId":375211,"journal":{"name":"2023 VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123653471","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
Moving Object Detection Underside of Vehicle Using Wi-Fi CSI for Wireless Power Transfer 基于无线电力传输的Wi-Fi CSI车载移动目标检测
2023 VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2023-08-01 DOI: 10.1109/APWCS60142.2023.10234070
Riku Tokumine, M. Ogawa, Atsuhiro Takahashi, Hideto Shimada, Kentaro Mizuno
{"title":"Moving Object Detection Underside of Vehicle Using Wi-Fi CSI for Wireless Power Transfer","authors":"Riku Tokumine, M. Ogawa, Atsuhiro Takahashi, Hideto Shimada, Kentaro Mizuno","doi":"10.1109/APWCS60142.2023.10234070","DOIUrl":"https://doi.org/10.1109/APWCS60142.2023.10234070","url":null,"abstract":"The intrusion of obstacles underside of the vehicle can hinder the Electric Vehicle’s safe wireless power transfer. This paper aims to construct a system to detect when an object passes underside of the vehicle. The Wi-Fi Channel State Information (CSI) is used to estimate changes in the surrounding environment by multipath propagation from the transmitter. The multipath propagation changes due to the radio wave reflection and diffraction. To make multipath propagation, we used three transmit and three receive antennas underside of the vehicle and measure the CSI. Then, we analyzed the variation value of CSI caused by the passage of objects underside of the vehicle. Using CSI variation values derived from the measured CSI amplitude component’s correlation matrix, judged whether an object was passed underside of the vehicle.","PeriodicalId":375211,"journal":{"name":"2023 VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129366690","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
Performance Evaluation of Interference Aware MMSE and Interference Suppression MMSE Techniques for A Cellular Distributed MU-MIMO System 蜂窝分布式MU-MIMO系统干扰感知MMSE和干扰抑制MMSE技术的性能评价
2023 VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2023-08-01 DOI: 10.1109/APWCS60142.2023.10234073
Ryo Takahashi, Hidenori Matsuo, Fumiyuki Adachi
{"title":"Performance Evaluation of Interference Aware MMSE and Interference Suppression MMSE Techniques for A Cellular Distributed MU-MIMO System","authors":"Ryo Takahashi, Hidenori Matsuo, Fumiyuki Adachi","doi":"10.1109/APWCS60142.2023.10234073","DOIUrl":"https://doi.org/10.1109/APWCS60142.2023.10234073","url":null,"abstract":"Cellular distributed multi-user MIMO (MU-MIMO) is a system, in which a wide service area is divided into a number of base station (BS) coverage areas (cells), multiple user-clusters are formed by grouping neighborhood users together in each cell, and small-scale cluster-wise distributed MU-MIMO cooperative transmission/reception is performed in parallel. The use of cellular structure is to ensure the system scalability and the use of cluster-wise distributed MU-MIMO in parallel is to ensure reduced complexity spatial multiplexing of users in each cell. In such a system, the inter-cell interference and the inter-cluster interference are produced and limit the system capacity improvement achievable by distributed MU-MIMO. The inter-cluster interference can be suppressed by minimum mean square error (MMSE) pre/postcoding technique. So far, we have proposed interference aware MMSE (IA-MMSE) and interference suppression MMSE (IS-MMSE) techniques. The former considers the inter-cluster interference as an equivalent noise, while the latter takes the instantaneous channel correlation matrix of the inter-cluster interference into the MMSE weight vector. In this paper, we evaluate by computer simulation the uplink user capacities achievable with two MMSE techniques and show that the IS-MMSE provides higher user capacity than the IA-MMSE when compared at the same computational complexity.","PeriodicalId":375211,"journal":{"name":"2023 VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127176741","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
Deep Reinforcement Learning-Based Full-Duplex Communication UAV Base Station Trajectory Optimization in Disaster Environments 灾害环境下基于深度强化学习的全双工通信无人机基站轨迹优化
2023 VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2023-08-01 DOI: 10.1109/APWCS60142.2023.10234041
Tae-Yoon Kim, Jaeyeol Lee, Jae-Hyun Kim
{"title":"Deep Reinforcement Learning-Based Full-Duplex Communication UAV Base Station Trajectory Optimization in Disaster Environments","authors":"Tae-Yoon Kim, Jaeyeol Lee, Jae-Hyun Kim","doi":"10.1109/APWCS60142.2023.10234041","DOIUrl":"https://doi.org/10.1109/APWCS60142.2023.10234041","url":null,"abstract":"Unmanned aerial vehicles (UAVs) are widely used in various fields due to their fast mobility and flexible deployment capabilities. While previous research focused on using UAVs as relays, recent studies have explored the use of UAVs as base stations (UAV-BS) to overcome the limitations of ground-base stations. Particularly, in disaster environments where traditional ground-base stations are unavailable, the utilization of UAV-BS has gained significant attention for overcoming critical communication challenges. Moreover, research on full-duplex (FD) communication, which enhances frequency efficiency to serve a larger number of nodes in disaster environments, has been actively pursued. However, the availability of FD communication between node pairs can vary depending on the position of the UAV-BS when it is used. In this paper, we propose a deep reinforcement learning (DRL)-based approach to optimize the trajectory of UAV-BS for efficient FD communication in disaster environments. Our experimental results demonstrate that the proposed algorithm outperforms other existing algorithms, achieving more efficient FD communication within the given time constraints.","PeriodicalId":375211,"journal":{"name":"2023 VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115168640","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
Investigation on Offset Optimization for Cell Range Expansion Using Neural Networks in Conjunction with Convex Optimization 神经网络与凸优化相结合的小区扩展偏移优化研究
2023 VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2023-08-01 DOI: 10.1109/APWCS60142.2023.10234034
Mitsuto Sato, Yuki Kusaka, N. Miki
{"title":"Investigation on Offset Optimization for Cell Range Expansion Using Neural Networks in Conjunction with Convex Optimization","authors":"Mitsuto Sato, Yuki Kusaka, N. Miki","doi":"10.1109/APWCS60142.2023.10234034","DOIUrl":"https://doi.org/10.1109/APWCS60142.2023.10234034","url":null,"abstract":"In order to support increasing amount of traffic, network densification, and additional higher frequency usage is one of the promising techniques. To make efficient utilization of these increasing number of base stations (BSs) and frequency bands, radio resource allocation is important. In this paper, two types of resource allocation are used jointly: user association (UA), in which users select resources with channel quality information (CQI) feedback, and scheduling, in which actual allocation is decided based on CQI. UA was performed using cell range expansion (CRE), and offset optimization was performed using a neural network (NN). Convex optimization was employed for scheduling, and the two different types of resource allocation were integrated using the same proportional fair criteria to accomplish overall optimization. In this paper, we focus specifically on the training of NN. Simulation results show that the proposed method works well.","PeriodicalId":375211,"journal":{"name":"2023 VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131420460","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
UAV Trajectory, User Association and Power Control for Multi-UAV Solar-Powered Networks 多无人机太阳能网络的无人机轨迹、用户关联与功率控制
2023 VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2023-08-01 DOI: 10.1109/APWCS60142.2023.10233965
Chien-Wei Fu, Meng-Lin Ku
{"title":"UAV Trajectory, User Association and Power Control for Multi-UAV Solar-Powered Networks","authors":"Chien-Wei Fu, Meng-Lin Ku","doi":"10.1109/APWCS60142.2023.10233965","DOIUrl":"https://doi.org/10.1109/APWCS60142.2023.10233965","url":null,"abstract":"This paper investigates the design of multiple solar-powered wireless nodes that transmit data to unmanned aerial vehicles (UAVs). We address the problem of jointly optimizing UAV flight trajectories, UAV-node user association, and uplink power control over a finite time horizon, with the goal of maximizing the worst user rate while managing co-channel interference. The design problem is highly non-convex and requires future knowledge of both energy state information (ESI) and channel state information (CSI), which are difficult to predict in practice. To tackle these challenges, we propose an offline method based on convex optimization that only uses the average ESI and CSI, while accounting for both line-of-sight (LOS) and non-LOS (NLOS) channels. We solve the problem using successive convex approximation (SCA) and alternative optimization, by dividing it into three convex subproblems. Our computer simulations demonstrate the effectiveness of the proposed hybrid channel offline method, which outperforms existing offline methods that only consider LOS channels.","PeriodicalId":375211,"journal":{"name":"2023 VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132808871","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
Efficient Deployment of User Satisfaction Optimization in Multi-UAV Networks 多无人机网络中用户满意度优化的高效部署
2023 VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2023-08-01 DOI: 10.1109/APWCS60142.2023.10234047
Chuan Lai, Tzu-Min Pan, Chang-Lin Fan, Lun-Hao Hsu, Bo-Rui Chen
{"title":"Efficient Deployment of User Satisfaction Optimization in Multi-UAV Networks","authors":"Chuan Lai, Tzu-Min Pan, Chang-Lin Fan, Lun-Hao Hsu, Bo-Rui Chen","doi":"10.1109/APWCS60142.2023.10234047","DOIUrl":"https://doi.org/10.1109/APWCS60142.2023.10234047","url":null,"abstract":"In this paper, we study the deployment of unmanned aerial vehicle mounted base stations (UAV-BSs) in 3D space. We model the deployment problem as a user satisfaction maximization problem and propose an algorithm for serving non-uniformly distributed ground users outdoors. This algorithm can avoid serving too many ground users (GUs) per UAV-BS, thereby increasing the allocated data rate of ground users. Therefore, limiting the number of GUs served by each UAV-BS will improve user satisfaction. Preliminary simulation results show that our proposed algorithm improves user satisfaction by 19% compared to the existing counterclockwise spiral deployment method.","PeriodicalId":375211,"journal":{"name":"2023 VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130518855","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
Dynamic Path Planning for QoS Improvement in Multiple Automated Guided Vehicles 多自动引导车辆QoS改进的动态路径规划
2023 VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2023-08-01 DOI: 10.1109/APWCS60142.2023.10234027
Takumi Tanagi, Koichi Adachi
{"title":"Dynamic Path Planning for QoS Improvement in Multiple Automated Guided Vehicles","authors":"Takumi Tanagi, Koichi Adachi","doi":"10.1109/APWCS60142.2023.10234027","DOIUrl":"https://doi.org/10.1109/APWCS60142.2023.10234027","url":null,"abstract":"This paper studies the trajectory optimization of an automated guided vehicle (AGV) for a smart factory where material handling with high wireless communication quality is required. This design aims to maximize the sum of spectral efficiency under complex continuous-value constraints on movement and combinatorial constraints on cooperative movements. To tackle the NP-hard optimization problem, this paper proposes a hybrid algorithm that combines global and local optimization, where global optimization meets the constraints with relaxation and local optimization considers all constraints on movements. Specifically, the AGVs travel by local path planning based on dynamic window approach (DWA), given the globally optimal trajectory that is solved using dynamic programming (DP). Finally, simulation results provide the high communication quality achieved by the proposed algorithm compared to the benchmark algorithms.","PeriodicalId":375211,"journal":{"name":"2023 VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130592219","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
Pathloss Measurement and Modeling for a Campus Block Environment at 2.1GHz and 3.45GHz 2.1GHz和3.45GHz校园块环境的路径损耗测量与建模
2023 VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2023-08-01 DOI: 10.1109/APWCS60142.2023.10233962
Umer Ashraf, N. Venkatarayalu, Sumei Sun
{"title":"Pathloss Measurement and Modeling for a Campus Block Environment at 2.1GHz and 3.45GHz","authors":"Umer Ashraf, N. Venkatarayalu, Sumei Sun","doi":"10.1109/APWCS60142.2023.10233962","DOIUrl":"https://doi.org/10.1109/APWCS60142.2023.10233962","url":null,"abstract":"Pathloss measurements are carried out at 2.1GHz and 3.45 GHz in a campus block environment with multiple floors. The receiver locations are categorized into indoor, outdoor-to-indoor (O2I), floor 2 and floor 3 locations and correspondingly wall penetration loss and floor attenuation factors are estimated. Two different pathloss models viz., a) the close-in pathloss model with additional explicit wall-loss and floor attenuation factors as well as b) the frequency dependent ABG models are fitted for each of the categories using a minimum mean square error estimator for the model parameters. While the accuracy of the fit, represented by the shadow fading standard deviation, is better for the ABG model, its limitations in the form of breakdown of the physical significance of the model parameters constrained due to limited empirical measurements is observed.","PeriodicalId":375211,"journal":{"name":"2023 VTS Asia Pacific Wireless Communications Symposium (APWCS)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133738336","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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