2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)最新文献_第2页

Modelling the Refractive Index Structure Parameter: A ResNet Approach 折射率结构参数建模:一种ResNet方法

2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2020-07-01 DOI: 10.1109/CoBCom49975.2020.9174186

Christopher Lamprecht, P. Bekhrad, H. Ivanov, E. Leitgeb

引用次数: 5

DVFS Technique on a Zynq SoC-based System for Low Power Consumption 基于Zynq soc的低功耗系统的DVFS技术

2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2020-07-01 DOI: 10.1109/CoBCom49975.2020.9174061

Marsida Ibro, G. Marinova

{"title":"DVFS Technique on a Zynq SoC-based System for Low Power Consumption","authors":"Marsida Ibro, G. Marinova","doi":"10.1109/CoBCom49975.2020.9174061","DOIUrl":"https://doi.org/10.1109/CoBCom49975.2020.9174061","url":null,"abstract":"This paper analyses the impact on power consumption when the Dynamic Voltage and Frequency Scaling (DVFS) technique is implemented on a SoC Zynq 7000 device. The usage of the DVFS technique allows the hardware IP Core design to reduce the typical power consumption. The main concern is about static and dynamic power consumption reduction by selecting the right CPU clock frequency using the DVFS technique. Several wide-ranging power consumption reduction techniques usually disregard the operating characteristics. Subsequently, we present in this paper, not only the hardware design and the operating characteristics but also the needed measurements for different operation modes to enhance the design for power consumption efficiency. Most of the experiments are conducted on the processing unit, whereas the CPU clock frequency and input voltage for Programmable Logic (PL) systems are altered. The empirical results from the application of the DVFS technique indicate that the worst scenario is when the input voltage supply for PL and CPU clock frequency have the maximum values. The best scenario for this design is when the CPU clock frequency is highest and the input voltage supply for PL is minimal, where the measurements for power consumption, especially for dynamic power consumption show that the value is reduced by additional 3%.","PeriodicalId":442802,"journal":{"name":"2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114620874","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

Comparison of Radiation Exposure between DVBT2, WLAN, 5G and other Sources with Respect to Law and Regulation Issues DVBT2、WLAN、5G等辐射源辐射暴露的法律法规比较

2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2020-07-01 DOI: 10.1109/CoBCom49975.2020.9174070

P. Mandl, P. Pezzei, E. Leitgeb

引用次数: 4

DF Relayed OOK and PAM FSO Links with Turbulence and Time Jitter DF中继OOK和PAM FSO链接与湍流和时间抖动

2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2020-07-01 DOI: 10.1109/CoBCom49975.2020.9174183

P. J. Gripeos, H. Nistazakis, G. D. Roumelas, V. Christofilakis, A. Tsigopoulos, G. Tombras

引用次数: 3

Distributed Ledger Technologies for IoT and Business DApps 物联网和商业dapp的分布式账本技术

2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2020-07-01 DOI: 10.1109/CoBCom49975.2020.9174188

D. Dolenc, J. Turk, M. Pustišek

引用次数: 6

Flow-Aware QoS Engine for Ultra-Dense SDN Scenarios 面向超密集SDN场景的流感知QoS引擎

2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2020-07-01 DOI: 10.1109/CoBCom49975.2020.9174088

Mertkan Akkoç, B. Canberk

{"title":"Flow-Aware QoS Engine for Ultra-Dense SDN Scenarios","authors":"Mertkan Akkoç, B. Canberk","doi":"10.1109/CoBCom49975.2020.9174088","DOIUrl":"https://doi.org/10.1109/CoBCom49975.2020.9174088","url":null,"abstract":"Software-Defined Networking (SDN) is a promising technology for 5G thanks to the separation of data plane and control plane. However, especially in ultra-dense scenarios, as a result of the centrality of the SDN controller, the response time increases with the ultra high spiky demands of the in-coming heterogeneous flows. This sudden increase causes an uncontrollable rise in end-to-end (e2e) latency and drop rate in the controller. Moreover, this also leads to an unbalanced QoS provisioning in this heterogeneous flow management. To tackle these challenges, in this paper, we propose a Flow-Aware QoS Engine by considering both huge flow demands and QoS requirements of different 5G flows (URLLC, eMBB, mMTC). This novel QoS-based engine contains two steps in a single controller: The Admission Management and The Priority Management. In admission management, we modify the generic Loss Ratio-Based Random Early Detection Algorithm (LRED) by implementing an add-on containing the arrival rate of different flow types. In the proposed priority management, we design a tree-based priority management scheme where we dynamically assign priorities to each flow type regarding fairness. According to our thorough evaluation results, we get up to 53% lower response times, up to 58% lower e2e latencies, and up to 36% lower drop rates for three different flows in ultra-dense SDN scenarios.","PeriodicalId":442802,"journal":{"name":"2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133282621","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

Maritime Communications and Remote Voyage Monitoring 海上通信和远程航行监测

2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2020-07-01 DOI: 10.1109/CoBCom49975.2020.9174182

N. Wakabayashi, I. Jurdana

{"title":"Maritime Communications and Remote Voyage Monitoring","authors":"N. Wakabayashi, I. Jurdana","doi":"10.1109/CoBCom49975.2020.9174182","DOIUrl":"https://doi.org/10.1109/CoBCom49975.2020.9174182","url":null,"abstract":"For ships at sea, communicating with other ships or even to land-based sites has always been a very difficult task. Around 1900, the installation of wireless communication equipment on ships began. This form of communication initially used radio waves in the MF (Medium Frequency) band. Ever since it has been undergoing various technological innovations. At present, in addition to typical terrestrial communication in the VHF band, satellite communication using microwaves is also possible. Further, these forms of data communication have replaced the telegraph and telephone. Even now, however, the speed and capacity of data communication are significantly less than that of the land-based data communication network. After reviewing the situation of maritime communication, this paper studies the data communication for autonomous navigation of ships that is currently in demand focusing on remote monitoring. It appears that few instances of obtaining verification through detailed on-board data related to real-time communication have previously been possible. That being the case, the authors posit that it is worthwhile to demonstrate the feasibility of obtaining relevant verification based on actual data via a university training vessel equipped with the latest data collection system – a system that is relatively unavailable even on new, large-scale merchant ships. Particularly for digital data, maritime communication remains mainly via relatively slow and expensive narrowband satellite transmission. Though speedier and more efficient data transfer is possible through the use of simple data compression, the costs for this mode are currently prohibitively high. It is posited that economical, speedy, and efficient data transfer via data compression will increasingly become economically available for more ships in the future.","PeriodicalId":442802,"journal":{"name":"2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116694093","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

Evaluation of data sets for mobile radio signal coverage up to 150 meters above ground 对距离地面150米的移动无线电信号覆盖数据集进行评估

2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2020-07-01 DOI: 10.1109/CoBCom49975.2020.9174053

Klaus Kainrath, Jakob Feiner, Wilhelm Zugaj, E. Leitgeb, H. Fluehr, M. Gruber

引用次数: 1

USRP Implementation of a Ground Penetrating Radar Using a Combination of Stepped Frequency and OFDM Principles 采用步进频率与OFDM原理相结合的探地雷达USRP实现

2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2020-07-01 DOI: 10.1109/CoBCom49975.2020.9173979

V. Kafedziski, Sinisha Pecov, Dimitar Tanevski

{"title":"USRP Implementation of a Ground Penetrating Radar Using a Combination of Stepped Frequency and OFDM Principles","authors":"V. Kafedziski, Sinisha Pecov, Dimitar Tanevski","doi":"10.1109/CoBCom49975.2020.9173979","DOIUrl":"https://doi.org/10.1109/CoBCom49975.2020.9173979","url":null,"abstract":"We present a Software Defined Radio (SDR) implementation of a Ground Penetrating Radar which uses much larger bandwidth than the SDR instantaneous RF bandwidth in order to increase radar resolution. It is based on the Stepped Frequency principle, where the baseband signal is an Orthogonal Frequency Division Multiplexing (OFDM) signal, transmitted in different subbands by modulating the RF stepped frequencies. Using OFDM in each subband provides faster signal transmission and simpler detection. The receive signal-to-noise ratio (SNR) is improved by repeating a number of times the transmit baseband signal before modulating each RF frequency. The random phase discontinuities between the adjacent subbands that appear when the RF frequency is changed, are removed by postprocessing the received signal. Singular value decomposition is used to remove the effects of the direct and the ground reflected waves. We perform field experiments with anti-tank mines buried in the ground. The resulting B-scans provide excellent detection and localization of the buried objects.","PeriodicalId":442802,"journal":{"name":"2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123015566","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 GPS Patch Antenna Array for the ESA PRETTY Nanosatellite Mission 欧空局PRETTY纳米卫星任务的GPS贴片天线阵列

2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2020-07-01 DOI: 10.1109/CoBCom49975.2020.9173975

R. Zeif, A. Hörmer, M. Kubicka, Maximilian Henkel, O. Koudelka

{"title":"A GPS Patch Antenna Array for the ESA PRETTY Nanosatellite Mission","authors":"R. Zeif, A. Hörmer, M. Kubicka, Maximilian Henkel, O. Koudelka","doi":"10.1109/CoBCom49975.2020.9173975","DOIUrl":"https://doi.org/10.1109/CoBCom49975.2020.9173975","url":null,"abstract":"The PRETTY mission is a satellite mission of the European Space Agency (ESA) with the goal to demonstrate the concept of passive reflectometry with a small and cost-efficient 3U Nanosatellite. Passive reflectometry allows the characterisation of the Earth surface properties and height, by correlating direct and reflected Global Positioning System (GPS) signals. The PRETTY mission focuses on the characterisation of the surface height. The system is realized as a Software Defined Radio (SDR) with a high-gain GPS patch antenna array that receives the very weak reflected signals from Earth’s surface. The GPS patch antenna array resides on the outer surface of the satellite with direct contact to the harsh space environment. The application in space is a key factor for many requirements and design restrictions for the PRETTY GPS antenna array. This paper focuses on the various design constraints and requirements for the antenna array and describes the relations with the antenna design parameters. The paper describes the results obtained from a first single patch simulation and discusses the final antenna array architecture, simulation results and PCB design.","PeriodicalId":442802,"journal":{"name":"2020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122700043","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