2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)最新文献_第4页

A 140-GHz microstrip amplitude modulator based on Schottky Diodes 基于肖特基二极管的140 ghz微带调幅器

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569566

Kesen Ding, Wei Kou, S. Liang, Xiaoqing Guo, S. Gong, Yaxin Zhang

引用次数: 0

Relevance-Based Wireless Resource Allocation for a Machine Learning-Based Centralized Control System 基于机器学习的集中控制系统中基于相关性的无线资源分配

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/pimrc50174.2021.9569302

Afsaneh Gharouni, P. Rost, Andreas Mäder, H. Schotten

{"title":"Relevance-Based Wireless Resource Allocation for a Machine Learning-Based Centralized Control System","authors":"Afsaneh Gharouni, P. Rost, Andreas Mäder, H. Schotten","doi":"10.1109/pimrc50174.2021.9569302","DOIUrl":"https://doi.org/10.1109/pimrc50174.2021.9569302","url":null,"abstract":"Machine learning (ML) grows to be an inseparable part of future networks and an enabler for internet of things use-cases. Input components of machine learning units (MLU) have different levels of relevancy for determining accurate output. Assuming that attributes of each MLU are transmitted from multiple terminals, we revisit the resource allocation problem for a ML-based centralized control system, considering relevancy in order to provide best effort MLU outcome as key performance indicator. To achieve this goal, we propose a heuristic greedy resource allocation algorithm in combination with lookup tables of various payload requirements. These tables are generated by a Kullback-Leibler divergence (KLD)-based approach for each MLU. The KLD assigns number of quantization bits for input attributes of each terminal considering their relevancy.The proposed resource allocation is applied to a network of inverted pendulums on carts with MLUs as controllers. Simulation results demonstrate significant gains in MLU performance and efficiency in resource utilization when employing the proposed technique comparing with two benchmarks: the greedy maximum sum rate (GMSR) algorithm allocating resources once with equal payload requirements, and once KLD lookup table.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127432119","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

Orthogonal Multipoint Multicast Caching in OFDM Cellular Networks with ICI and IBI 基于ICI和IBI的OFDM蜂窝网络正交多点组播缓存

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569544

Mohsen Amidzadeh, H. Al-Tous, G. Caire, O. Tirkkonen

{"title":"Orthogonal Multipoint Multicast Caching in OFDM Cellular Networks with ICI and IBI","authors":"Mohsen Amidzadeh, H. Al-Tous, G. Caire, O. Tirkkonen","doi":"10.1109/PIMRC50174.2021.9569544","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569544","url":null,"abstract":"We consider optimal cache placement and delivery for Orthogonal Multipoint Multicasting (OMPMC) cellular systems. In OMPMC, all Base Stations (BSs) that cache a file transmit identical signals in a dedicated frequency resource. The simultaneous transmissions create artificial multipath propagation, which creates Inter-Block Interference (IBI) and Inter-Carrier Interference (ICI) in Orthogonal Frequency Division Multiplexing systems where the Cyclic Prefix (CP) is shorter than the maximum propagation delay. The placement of files at BS caches is based on a probabilistic model. A file request is in outage if the average signal-to-interference-and-noise ratio associated with a request is less than a threshold. We formulate the cache policy and bandwidth allocation as a joint optimization problem aiming to minimize the total outage probability, and considering the effect of IBI and ICI. Despite that the outage probability does not have a closed form expression, we are able to devise an algorithm to find the optimal solution based on predictor-corrector approach. Simulations results are used to demonstrate the capability of the proposed algorithm to find the optimum cache policy. Simulation results show that the effect of ICI/IBI has to be considered in designing OMPMC caching policy.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131068657","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

Search for Good Irregular Low-Density Parity-Check Codes Via Graph Spectrum 利用图谱搜索好的不规则低密度奇偶校验码

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569696

Dawei Yin, Xiaojing Zhang, Xichao Shu, Guiying Yan, Guanghui Wang

引用次数: 0

Large System Analysis of the Maximum Ratio Transmission Precoding Under Imperfect Channel State Information With Hardware Impairments 不完全信道状态信息下最大比传输预编码的大系统分析

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569397

Yasser Naguib Ahmed

引用次数: 0

Nonlinear Power Amplifier Effects on a Full Duplex Spatial Modulation System 非线性功率放大器对全双工空间调制系统的影响

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569720

Yanni Zhou, F. Hutu, G. Villemaud, T. Riihonen

引用次数: 0

Hybrid Precoding Design Based on Dual-Layer Deep-Unfolding Neural Network 基于双层深度展开神经网络的混合预编码设计

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/pimrc50174.2021.9569633

Guangyi Zhang, Xiao Fu, Qiyu Hu, Yunlong Cai, Guanding Yu

{"title":"Hybrid Precoding Design Based on Dual-Layer Deep-Unfolding Neural Network","authors":"Guangyi Zhang, Xiao Fu, Qiyu Hu, Yunlong Cai, Guanding Yu","doi":"10.1109/pimrc50174.2021.9569633","DOIUrl":"https://doi.org/10.1109/pimrc50174.2021.9569633","url":null,"abstract":"Dual-layer iterative algorithms are generally required when solving resource allocation problems in wireless communication systems. Specifically, the spectrum efficiency maximization problem for hybrid precoding architecture is hard to solve by the single-layer iterative algorithm. The dual-layer penalty dual decomposition (PDD) algorithm has been proposed to address the problem. Although the PDD algorithm achieves significant performance, it requires high computational complexity, which hinders its practical applications in real-time systems. To address this issue, we first propose a novel framework for deep-unfolding, where a dual-layer deep-unfolding neural network (DLDUNN) is formulated. We then apply the proposed frame-work to solve the spectrum efficiency maximization problem for hybrid precoding architecture. An efficient DLDUNN is designed based on unfolding the iterative PDD algorithm into a layer-wise structure. We also introduce some trainable parameters in place of the high-complexity operations. Simulation results show that the DLDUNN presents the performance of the PDD algorithm with remarkably reduced complexity.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125391314","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

Positioning Technology Trends and Solutions Toward 6G 定位6G技术趋势和解决方案

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569341

Mikko Säily, Osman N. C. Yilmaz, D. Michalopoulos, E. Pérez, Ryan Keating, J. Schaepperle

引用次数: 17

Integrated Sensing and Communication in 6G: the Deterministic Channel Models for THz Imaging 6G集成传感与通信:太赫兹成像的确定性信道模型

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/pimrc50174.2021.9569384

Xianjing Li, Jia He, Ziming Yu, Guangjian Wang, Peiying Zhu

{"title":"Integrated Sensing and Communication in 6G: the Deterministic Channel Models for THz Imaging","authors":"Xianjing Li, Jia He, Ziming Yu, Guangjian Wang, Peiying Zhu","doi":"10.1109/pimrc50174.2021.9569384","DOIUrl":"https://doi.org/10.1109/pimrc50174.2021.9569384","url":null,"abstract":"In this paper, the channel modeling for integrated sensing and communication for 6G systems are studied. The channel modeling approaches, requirements, and challenges for communication cases and sensing cases are summarized and discussed. In particular, a 3-D metallic test chart is designed as a reference for studying electromagnetic imaging quality. The deterministic channel modeling approaches, i.e., geometrical optics method, physical optics method, and integral equation method, are introduced to simulate the imaging channel of the designed 3-D test chart. And the electromagnetic inverse scattering method is adopted as an imaging tool. The test is experimentally measured by 140 GHz signal with horn antennas in a chamber. The modulation transfer function (MTF) is applied to assess the imaging quality numerically, and the simulated and measured images are compared, which suggests that the imaging by integral equation is in agreement very well with that of measurement for 3-D test chart, and the geometric optics and physical optics methods can only show the characteristics of 2-D optical imaging.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121102531","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: 9

Age of Control Process for Real-Time Wireless Control 实时无线控制的控制过程时代

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569528

Burak Kizilkaya, B. Chang, Shuja Ansari, Y. Sambo, Guodong Zhao, M. Imran

引用次数: 1