2021 IEEE Globecom Workshops (GC Wkshps)最新文献_第9页

ARUSH:Automated Runtime Universal Scanner for Hybrid Cloud computing ARUSH:用于混合云计算的自动运行时通用扫描器

2021 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2021-12-01 DOI: 10.1109/GCWkshps52748.2021.9682093

Jatin Luthra, Arjun Choudhary, Abhishek Sharma, D. Jayakody

引用次数: 0

Secrecy Rate Comparison of Key-based Encrypted Data Transmission and Keyless Secure Transmission 基于密钥的加密数据传输与无密钥安全传输的保密率比较

2021 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2021-12-01 DOI: 10.1109/GCWkshps52748.2021.9682116

Ziyao Yu, Zijie Ji, Phee Lep Yeoh

引用次数: 0

Simultaneous Environment Sensing and Channel Knowledge Mapping for Cellular-Connected UAV 蜂窝互联无人机的同步环境感知与信道知识映射

2021 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2021-12-01 DOI: 10.1109/GCWkshps52748.2021.9682178

Yijia Huang, Yong Zeng

{"title":"Simultaneous Environment Sensing and Channel Knowledge Mapping for Cellular-Connected UAV","authors":"Yijia Huang, Yong Zeng","doi":"10.1109/GCWkshps52748.2021.9682178","DOIUrl":"https://doi.org/10.1109/GCWkshps52748.2021.9682178","url":null,"abstract":"Cellular-connected unmanned aerial vehicle (UAV), as a promising application of extending cellular service from ground to low-altitude three-dimensional (3D) airspace, has received significant attention recently. However, its practical realization faces some critical challenges, such as the noncontinuous 3D cellular coverage in the sky, as well as the complex physical and radio environment when operating in urban area. In this paper, by exploiting the UAV’s highly controllable mobility, we study the UAV trajectory design problem to minimize the weighted sum of mission completion time and expected communication outage duration, while ensuring obstacle avoidance in complex environment. The formulated problem involves intractable cost function and constraint, which can not be solved by standard optimization techniques. To this end, we first study the performance upper bound based on the Dijkstra’s shortest path algorithm under the ideal assumption that the perfect physical environment information and radio channel knowledge are available. For the practical scenario in the absence of such information, a novel framework with simultaneous environment sensing and channel knowledge mapping is proposed, which aims to construct both the physical environment and radio propagation maps to facilitate the reinforcement learning based path design. Numerical results show that the proposed technique can effectively avoid the coverage holes and physical obstacles, and approaches to the performance upper bound that assumes the perfect physical and radio environment information.","PeriodicalId":6802,"journal":{"name":"2021 IEEE Globecom Workshops (GC Wkshps)","volume":"50 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73933442","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

DigiLogue: Ultra-Fast and Ultra-Power-Efficient Signal Processing for Tbps Wireless Systems DigiLogue: Tbps无线系统的超快速和超节能信号处理

2021 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2021-12-01 DOI: 10.1109/GCWkshps52748.2021.9682067

K. Nikitopoulos, Mahmoud Mojarrad Kiasaraei

{"title":"DigiLogue: Ultra-Fast and Ultra-Power-Efficient Signal Processing for Tbps Wireless Systems","authors":"K. Nikitopoulos, Mahmoud Mojarrad Kiasaraei","doi":"10.1109/GCWkshps52748.2021.9682067","DOIUrl":"https://doi.org/10.1109/GCWkshps52748.2021.9682067","url":null,"abstract":"Unlocking new wireless applications such as mobile extended reality and holographic telepresence necessitates ultra-power efficient systems that are able to support data rates of hundreds of gigabits per second. Utilizing the multi-gigahertz bandwidth that is currently available in higher frequencies (e.g., millimeter-wave or terahertz) is a promising pathway in this direction. However, exploiting such ultra-wide bandwidths by using conventional transceiver processing brings us in front of significant challenges in terms of power consumption and signal processing speed. For example, the power consumption of high-precision and ultra-high-speed digital-to-analogue and analogue-to-digital converters (DAC/ADC) for ultra-wide band-widths becomes impractical. At the same time, conventional, state-of-the-art signal processing functionalities, like detection and decoding are becoming not only too power-hungry but also too complex to meet the corresponding latency requirements of ultra-fast systems. In order to overcome these challenges, we herein propose a shift towards \"DigiLogue\" transceiver processing, according to which, computationally intensive and power-hungry digital signal processing tasks take place directly in the analogue domain, avoiding traditional signal up/down-conversion and ADC/DACs, but still preserving the performance of traditional, near-optimal, digital transceiver algorithms. In this context, we give the first example of a simple to realize joint detection/decoding scheme that outperforms existing analogue-domain approaches and reaches the performance of digitally optimal solutions with power consumption that can be up to two orders of magnitude less.","PeriodicalId":6802,"journal":{"name":"2021 IEEE Globecom Workshops (GC Wkshps)","volume":"7 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82029496","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

Globecom 2021 TPC

2021 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2021-12-01 DOI: 10.1109/gcwkshps52748.2021.9682112

引用次数: 0

Delayed Bit-Interleaved Polar Coded Modulation with Superposition Gray Labeling 带叠加灰色标记的延迟位交错极化编码调制

2021 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2021-12-01 DOI: 10.1109/GCWkshps52748.2021.9682041

Xiaowei Wu, Min Qiu, Jinhong Yuan

引用次数: 1

Convoy_DTN: A Security Interaction Engine Design For Digital Twin Network Convoy_DTN:数字孪生网络安全交互引擎设计

2021 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2021-12-01 DOI: 10.1109/GCWkshps52748.2021.9682031

Meiling Chen, Jing Shao, Sixu Guo, Li Su, Haitao Du

引用次数: 5

Stochastic Flipping Decoding for Short Polar Codes 短极码的随机翻转译码

2021 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2021-12-01 DOI: 10.1109/GCWkshps52748.2021.9681994

Yuzhou Shang, Zhaoyang Zhang

{"title":"Stochastic Flipping Decoding for Short Polar Codes","authors":"Yuzhou Shang, Zhaoyang Zhang","doi":"10.1109/GCWkshps52748.2021.9681994","DOIUrl":"https://doi.org/10.1109/GCWkshps52748.2021.9681994","url":null,"abstract":"Polar codes are considered a promising candidate for URLLC. Due to the inevitable decoding delay and error propagation brought by successive cancellation (SC) based decoders, the ordered statistic decoding (OSD) algorithm, which has a parallel structure, raises much attention in polar decoding, especially for the short codelength cases. However, the OSD algorithm contains many unnecessary attempts for different error patterns (EPs), increasing the complexity and decoding delay. To address this issue, we propose a novel stochastic flipping decoding (SFD) algorithm. Instead of processing all EPs in the search space, each time, the proposed SFD decoder only processes a small set of EPs generated by stochastic flipping and then chooses the one that has the best distance to get the new reference codeword. The flipping probability vector depends on how the flip of each bit potentially affects the overall distance, and it is updated progressively towards all-zero. The complexity of the algorithm can be further reduced by eliminating all the duplicated EPs. Numerical results show that improved SFD with adequately selected parameters outperforms OSD while the search space of these two algorithms is close.","PeriodicalId":6802,"journal":{"name":"2021 IEEE Globecom Workshops (GC Wkshps)","volume":"65 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78643073","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

Understanding Exploration and Exploitation of Q-Learning Agents in B5G Network Management 理解B5G网络管理中q -学习代理的探索与利用

2021 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2021-12-01 DOI: 10.1109/GCWkshps52748.2021.9682129

Sayantini Majumdar, R. Trivisonno, G. Carle

{"title":"Understanding Exploration and Exploitation of Q-Learning Agents in B5G Network Management","authors":"Sayantini Majumdar, R. Trivisonno, G. Carle","doi":"10.1109/GCWkshps52748.2021.9682129","DOIUrl":"https://doi.org/10.1109/GCWkshps52748.2021.9682129","url":null,"abstract":"Auto-scaling is a lifecycle management approach that automatically scales resources (CPU, memory etc.) based on incoming load to optimize resource utilization. Centralized orchestration, although optimal, comes at the cost of high signaling overhead. Alternatively, decentralized RL-based approaches such as Q-Learning (QL) are envisaged to be more suitable for the strict latency and overhead requirements of B5G/6G use cases, while also minimizing the number of resource allocation conflicts encountered in a distributed setting. Before QL agents can take optimal auto-scaling decisions, they need to explore or evaluate their actions based on the feedback they receive from the environment. The faster they learn, the sooner they could begin to exploit their knowledge. However, it is not clear when these agents have explored long enough to start taking management actions. This paper focuses on understanding when the exploration should end such that agents may start exploiting built knowledge. In our approach, we posit that the knowledge accrued by the agents in their Q-tables should indicate whether to explore or exploit. Hence, we conceive Knowledge Indicators (KIs) derived from their Q-tables. These KIs enable agents to learn autonomously, thereby enabling adjustment of the exploration parameter epsilon in the epsilon-greedy approach. Convergence results and corresponding impact on the system performance validate the proposed approach. This work has the potential to speed up the convergence of QL agents, thereby providing critical hints to operators targeting live deployments of B5G/6G decentralized network management.","PeriodicalId":6802,"journal":{"name":"2021 IEEE Globecom Workshops (GC Wkshps)","volume":"25 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83522696","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

Enhancing Physical Layer Security in Internet of Things via Feedback: Revisit 通过反馈增强物联网物理层安全:再谈

2021 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2021-12-01 DOI: 10.1109/GCWkshps52748.2021.9681997

Haonan Yuan, Chuanchuan Yang, Bin Dai

引用次数: 0