2018 IEEE Globecom Workshops (GC Wkshps)最新文献_第10页

Optimal Secondary Users Selection for Cooperative Spectrum Sensing in Cognitive Radio Networks 认知无线网络协同频谱感知辅助用户优化选择

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI: 10.1109/GLOCOMW.2018.8644208

S. K. Dhurandher, I. Woungang, Nitin Gupta, R. Jain, Devesh Singhal, Joshika Agarwal, M. Obaidat

{"title":"Optimal Secondary Users Selection for Cooperative Spectrum Sensing in Cognitive Radio Networks","authors":"S. K. Dhurandher, I. Woungang, Nitin Gupta, R. Jain, Devesh Singhal, Joshika Agarwal, M. Obaidat","doi":"10.1109/GLOCOMW.2018.8644208","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2018.8644208","url":null,"abstract":"The Secondary Users (SUs) in cognitive radio networks, are required to perform transmissions such that they do not interfere with the Primary User's (PU) transmission. This requires identification of the PU with the help of different spectrum sensing techniques. In recent years, Cooperative Spectrum Sensing (CSS), which is meant to improve the trust of decisions made busy or idle channel and to overcome the hidden terminal problem, has gained a lot of attention. However, cooperative sensing incurs sensing overhead due to communication and energy consumption during sensing. This work considers the selection of an optimal number of SUs, which can guarantee reliable sensing operation while reducing the unnecessary energy consumption. To perform this selection, all the SUs receiving good Signal to Noise Ratio (SNR) from the PU are selected first. Second, all uncorrelated SUs are selected from the first phase such that the shadowing effect is minimized. It is indicative in the simulation results that the proposed scheme can achieve a good probability of detection, with low probability of false alarm.","PeriodicalId":348924,"journal":{"name":"2018 IEEE Globecom Workshops (GC Wkshps)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128841553","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: 11

User-Centric Energy Efficiency of Distributed Antenna Systems with Wireless Power Transfer 以用户为中心的无线电力传输分布式天线系统的能源效率

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI: 10.1109/GLOCOMW.2018.8644275

Yuwen Huang, Yuan Liu

引用次数: 0

MmWave Vehicular Beam Training with Situational Awareness by Machine Learning 基于机器学习的毫米波车辆波束态势感知训练

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI: 10.1109/GLOCOMW.2018.8644288

Yuyang Wang, A. Klautau, Mónica Ribero, Murali Narasimha, R. Heath

引用次数: 27

State-of-the-Art Data Replication Techniques in IoT-Based Sensor Systems 基于物联网传感器系统的最新数据复制技术

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI: 10.1109/GLOCOMW.2018.8644438

Waleed Bin Qaim, Öznur Özkasap

{"title":"State-of-the-Art Data Replication Techniques in IoT-Based Sensor Systems","authors":"Waleed Bin Qaim, Öznur Özkasap","doi":"10.1109/GLOCOMW.2018.8644438","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2018.8644438","url":null,"abstract":"Internet of Things (IoT) is an emerging technology aimed at bridging the gap between physical and digital worlds. IoT envisions to provide a seamless and efficient way of interacting with real-world physical objects through the Internet which highly impacts modern day life. Wireless Sensor Networks (WSNs) are primarily responsible for turning physical objects into communicating entities that can be remotely accessed and controlled, thus, providing the basis for smart solutions to all the human needs. To realize the concept of IoT, efficient data generation, collection, and presentation through WSNs are crucial issues. However, WSNs face numerous challenges mainly because of the resource-constrained and unreliable nature of nodes which may result in loss of valuable sensed data. Data replication is a promising solution to facilitate efficient data management in IoT-based sensor systems. This paper presents a survey of state-of-the-art data replication protocols for IoT-based sensor systems. To the best of our knowledge, our study is the first one that presents a detailed analysis and comparison of the existing solutions by classifying them into sub-categories of data retrieval, query balancing, system robustness, and data availability. We conclude by highlighting potential future research directions.","PeriodicalId":348924,"journal":{"name":"2018 IEEE Globecom Workshops (GC Wkshps)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115333408","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

Probabilistically Shaped Multi-Level Coding with Polar Codes for Fading Channels 衰落信道中极码的概率形多电平编码

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI: 10.1109/GLOCOMW.2018.8644197

O. Iscan, R. Böhnke, Wen Xu

引用次数: 5

SDN - Architectural Enabler for Reliable Communication Over Millimeter-Wave 5G Networks SDN——毫米波5G网络可靠通信的架构推动者

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI: 10.1109/GLOCOMW.2018.8644374

B. Sahoo, Chung-Wei Weng, Hung-Yu Wei

{"title":"SDN - Architectural Enabler for Reliable Communication Over Millimeter-Wave 5G Networks","authors":"B. Sahoo, Chung-Wei Weng, Hung-Yu Wei","doi":"10.1109/GLOCOMW.2018.8644374","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2018.8644374","url":null,"abstract":"Millimeter-wave (mmWave) frequency bands offer a new frontier for next-generation wireless networks, popularly known as 5G, to enable multi-gigabit communication; however, the availability and reliability of mmWave signals are significantly limited due to its unfavorable propagation characteristics. Thus, mmWave networks rely on directional narrow-beam transmissions to overcome severe path-loss. To mitigate the impact of transmission-reception directionality and provide uninterrupted network services, ensuring the availability of mmWave transmission links is important. In this paper, we proposed a new flexible network architecture to provide efficient resource coordination among serving basestations during user mobility. The key idea of this holistic architecture is to exploit the software-defined networking (SDN) technology with mmWave communication to provide a flexible and resilient network architecture. Besides, this paper presents an efficient and seamless uncoordinated network operation to support reliable communication in highly-dynamic environments characterized by high density and mobility of wireless devices. To warrant high-reliability and guard against the potential radio link failure, we introduce a new transmission framework to ensure that there is at least one basestation is connected to the UE at all times. We validate the proposed transmission scheme through simulations.","PeriodicalId":348924,"journal":{"name":"2018 IEEE Globecom Workshops (GC Wkshps)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114513744","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

2020 IEEE Globecom Workshops (GC Wkshps 2020 IEEE全球通信研讨会(GC Wkshps

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI: 10.1109/glocomw.2018.8644101

F. Velez, Joao Oliveira, Daniel Robalo, O. Holland, H. Aghvami

引用次数: 5

Novel Post-Distortion to Mitigate LED Nonlinearity in High-Speed Visible Light Communications 在高速可见光通信中降低LED非线性的新型后失真

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI: 10.1109/GLOCOMW.2018.8644284

Xiong Deng, Shokoufeh Mardanikorani, Kumar Arulandu, J. Linnartz

{"title":"Novel Post-Distortion to Mitigate LED Nonlinearity in High-Speed Visible Light Communications","authors":"Xiong Deng, Shokoufeh Mardanikorani, Kumar Arulandu, J. Linnartz","doi":"10.1109/GLOCOMW.2018.8644284","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2018.8644284","url":null,"abstract":"This paper addresses dynamic nonlinear effects in the response of typical illumination Light Emitting Diodes (LEDs) to increase the reliability and data rate in Visible Light Communication (VLC) systems. These power LEDs have a limited bandwidth of only several MHz. To conceive a practical receiver, we describe the LED transient response by a nonlinear dynamic differential equation from the physical mechanisms in the Quantum Well (QW) of Double Hetero-structured (DH) LEDs. It includes the transient nonlinear relation between the input current and injection electron concentration, as governed by the dynamic rate equation. Also, we consider the static nonlinear (typically quadratic) relation between the injection electron concentration and output optical power is described by a square operator. Further we consider the static nonlinear relation between the injection current and output optical power, caused by the efficiency droop. We propose a novel post-distorter to overcome LED nonlinearities for high-speed Pulse Amplitude Modulation (PAM)-4 systems. Its performance is validated with measurements of a commercial blue LED.","PeriodicalId":348924,"journal":{"name":"2018 IEEE Globecom Workshops (GC Wkshps)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114687180","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: 7

Grant-Free Access in URLLC with Combinatorial Codes and Interference Cancellation 基于组合码和干扰消除的URLLC免授权访问

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI: 10.1109/GLOCOMW.2018.8644207

Christopher Boyd, R. Vehkalahti, O. Tirkkonen

{"title":"Grant-Free Access in URLLC with Combinatorial Codes and Interference Cancellation","authors":"Christopher Boyd, R. Vehkalahti, O. Tirkkonen","doi":"10.1109/GLOCOMW.2018.8644207","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2018.8644207","url":null,"abstract":"When targeting ultra-reliability for randomly accessing uplink users, an irreducible error floor exists when employing random repetition coding in synchronised frames. Combinatorial Code Designs (CCDs) that produce deterministic access patterns have been shown to overcome this performance limit in MAC layer channel models, where the physical layer has been abstracted to a collision model. In this work, we demonstrate that CCDs remain a promising option for URLLC for a properly modelled physical layer with fading and collision recovery through diversity reception. We investigate uplink users arriving according to a Poisson process, attempting to directly transmit data packets in a grant-free manner. We measure the achievable rate using a system outage capacity formulation which takes into account the access intensity, the size of the data packets transmitted, and the packet error rate, with the packet loss rate constrained to be less than a given URLLC target. We compare random and deterministic access patterns by system simulation in a factory environment. The results show that considerable gains in system throughput can be achieved by using deterministic access patterns. Unlike random patterns, patterns based on CCDs have the potential to support considerable communication rates with very high success probability. With ideal channel estimation, CCDs enable an aggregate system spectral efficiency of 2 bps/Hz in a grant-free URLLC access scenario.","PeriodicalId":348924,"journal":{"name":"2018 IEEE Globecom Workshops (GC Wkshps)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114734757","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

Empowering Vulnerable Road Users in C-ITS 在C-ITS中增强弱势道路使用者的权能

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI: 10.1109/GLOCOMW.2018.8644266

João Rufino, Luís Silva, Bruno Fernandes, João Almeida, J. Ferreira

引用次数: 6