2022 27th Asia Pacific Conference on Communications (APCC)最新文献_第2页

Smooth-RRT*: An Improved Motion Planner for Underwater Robot Smooth-RRT*:一个改进的水下机器人运动规划器

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943701

Kehao Wang, Shuai Li, Yang Wang, Jing Xi

{"title":"Smooth-RRT*: An Improved Motion Planner for Underwater Robot","authors":"Kehao Wang, Shuai Li, Yang Wang, Jing Xi","doi":"10.1109/APCC55198.2022.9943701","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943701","url":null,"abstract":"In underwater search and rescue, it is very important for underwater robot to reach the rescue position quickly. Planning path in advance is very important to save rescue time and energy consumption. Therefore, it is meaningful to find a better and shorter path as soon as possible. As a common method of path planning , RRT* has the disadvantages of high cost and slow convergence. To solve these flaws, an improved motion planner for underwater robots is proposed in this paper. In this study, the simulation experiments were divided into two-dimensional conditions and three-dimensional conditions, where used point cloud of real underwater scene to find a better initial solution. Based on RRT*, this paper finds the ancestor node farthest from the sampling point and without collision in the random tree as parent node, adds intermediate nodes in the path according to the step size, and uses trigonometric inequality many times throughout the process, so as to obtain an optimized path. Through a large number of simulation experiments, the results show that the cost of path is less and the convergence speed is faster than RRT* and Q-RRT*.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127720483","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

UAV as a Data Ferry for a Sparse Adaptive WSN 无人机作为稀疏自适应无线传感器网络的数据通道

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943645

P. Karegar, A. Al-Anbuky

引用次数: 1

Improved Solution of Topology Concealment Problem in Computing Network Reliability 计算网络可靠性中拓扑隐藏问题的改进求解方法

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943748

Raku Hatanaka, M. Hayashi

引用次数: 0

Autoencoder-based Pilot Pattern Design for CDL Channels 基于自编码器的CDL信道导频模式设计

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943621

Y. Yamada, T. Ohtsuki

{"title":"Autoencoder-based Pilot Pattern Design for CDL Channels","authors":"Y. Yamada, T. Ohtsuki","doi":"10.1109/APCC55198.2022.9943621","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943621","url":null,"abstract":"In the pilot-based channel estimations, a large number of pilot signals enable an improvement in the channel estimation accuracy but force a decrease in the data transmission efficiency. Therefore, the pilot pattern design schemes on the resource grid have been researched to achieve high channel estimation accuracy with a small number of pilot signals. In the conventional scheme for pilot pattern design, the autoencoder which enables discrete feature selection is utilized to design pilot patterns for Vehicular-A channels. However, the pilot pattern for other channels is not reported, and it is not clear whether this scheme has good performance compared to uniform pilot patterns. In this paper, we derive the pilot patterns for Clustered Delay Line (CDL) channels specified in the 5th Generation Mobile Communication System (5G) standard using the autoencoder-based pilot pattern design scheme. We also derive the pilot patterns for CDL-A and CDL-D, which model respectively NLOS (Non-Line-of-Sight) and LOS (Line-of-Sight) environments, with different three speeds of User Equipment (UE). Through computer simulation, we show that the autoencoder-based pilot patterns improve the channel estimation accuracy compared to the uniform pilot pattern.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"450 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115615614","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

Survey on Doppler Characterization and Compensation Schemes in LEO Satellite Communication Systems 低轨道卫星通信系统多普勒特性与补偿方案研究

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943675

Byungha You, Haejoon Jung, In-Ho Lee

引用次数: 2

Centralized Scheduling for Frequency Domain Orthogonal Multiple Access Multiple Relay Network 频域正交多址多中继网络的集中调度

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943776

Ali Al Khansa, R. Visoz, Y. Hayel, S. Lasaulce, Rasha Alkhansa

{"title":"Centralized Scheduling for Frequency Domain Orthogonal Multiple Access Multiple Relay Network","authors":"Ali Al Khansa, R. Visoz, Y. Hayel, S. Lasaulce, Rasha Alkhansa","doi":"10.1109/APCC55198.2022.9943776","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943776","url":null,"abstract":"In this paper, we consider an orthogonal Multiple Access Multiple Relay Network (MAMRN), where several nodes cooperate to send their messages to a single destination. Frequency Division Multiplexing (FDM) is adopted for the sources and the relays, and the destination acts as the central node responsible for scheduling the cooperative retransmissions. Since FDM is used for orthogonality, different nodes are allocated at each sub-band of the transmission and retransmission phases. In this work, we present the system model of the considered orthogonal MAMRN when the FDM mechanism is adopted, while including the analytical derivations of the utility metrics (spectral efficiency and outage events). Then, two centralized node selection strategies are proposed. Moreover, we present the control information exchange process between the destination and the different nodes. The proposed strategies allocate for each sub-band the node that will transmit (or retransmit) with the goal of maximizing the spectral efficiency. Our numerical analysis considers both symmetric and asymmetric channel and source rate scenarios, and shows that the proposed algorithms outperform the algorithms used in the prior-art, and achieve a spectral efficiency that is close to the upper bound calculated by an exhaustive search approach while reducing the complexity and the overhead.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121962305","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

A Brief Survey and Implementation on AI for Intent-Driven Network 面向意图驱动网络的人工智能研究综述与实现

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943612

Jiaorui Huang, Chungang Yang, Shiwen Kou, Yanbo Song

引用次数: 2

Performance Analysis for 5G/6G Satellite Communication under Nonlinear HPA Channel 非线性HPA信道下5G/6G卫星通信性能分析

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943703

Pansoo Kim, J. Ryu, Seungkeun Park

引用次数: 0

Delay-aware Joint Resource Allocation in Cell-Free Mobile Edge Computing 无蜂窝移动边缘计算中的延迟感知联合资源分配

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/apcc55198.2022.9943562

Fitsum Debebe Tilahun, A. T. Abebe, C. Kang

引用次数: 1

Research on Active/Passive Hybrid IRS Assisted Communication Method Based on Deep Learning 基于深度学习的主动/被动混合IRS辅助通信方法研究

2022 27th Asia Pacific Conference on Communications (APCC) Pub Date : 2022-10-19 DOI: 10.1109/APCC55198.2022.9943646

Chenguang He, Yuchuan Ma, Shengxian Huang, Jing Li

{"title":"Research on Active/Passive Hybrid IRS Assisted Communication Method Based on Deep Learning","authors":"Chenguang He, Yuchuan Ma, Shengxian Huang, Jing Li","doi":"10.1109/APCC55198.2022.9943646","DOIUrl":"https://doi.org/10.1109/APCC55198.2022.9943646","url":null,"abstract":"With the rapid development of mobile communication technology, wireless communication systems have higher and higher requirements for spectral efficiency and energy efficiency. However, in the optimization process of many technologies, the wireless communication environment is still an uncontrollable factor, and is increasingly becoming a bottleneck for improving communication quality. Intelligent Reflecting Surface can reflect incident signals through a large number of low-cost reflective units, thereby improving the wireless communication environment. This paper introduces a solution based on deep learning method with the goal of maximizing the achievable rate of the system under the condition of intelligent reflecting surface hardware architecture of hybrid active/passive units. Firstly, the performance of communication system with intelligent reflecting surface and relay is compared. After that, the hardware architecture of intelligent reflecting surface with hybrid active/passive units is introduced, and the research scheme of intelligent reflecting surface based on deep learning is designed and simulated. The results show that the proposed scheme can approach the upper limit of the achievable rate of the system as much as possible while reducing the overhead of beam training.","PeriodicalId":403546,"journal":{"name":"2022 27th Asia Pacific Conference on Communications (APCC)","volume":"226 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132443584","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