Pub Date : 2020-03-01DOI: 10.1109/6GSUMMIT49458.2020.9083808
Quan Yu, Jing Ren, Haibo Zhou, Wei Zhang
In this paper, we first introduce a new network paradigm, called cybertwin based network architecture for 6G, which consists a cloud-centric network architecture and a radio access network architecture. The cybertwin serves as communications assistant, network behavior logger, and digital asset owner. The proposed cloud-centric network architecture can allocate computing, caching, communications resources coordinately, support locator/identifier separation, provide some embed security properties, and support the data market for privacy data. The new radio access network architecture, which can fully decouple the control and data base stations and entirely separate uplink and downlink, significantly enhance the spectrum utilization, reduce the network energy consumption and improve the quality of user experience.
{"title":"A Cybertwin based Network Architecture for 6G","authors":"Quan Yu, Jing Ren, Haibo Zhou, Wei Zhang","doi":"10.1109/6GSUMMIT49458.2020.9083808","DOIUrl":"https://doi.org/10.1109/6GSUMMIT49458.2020.9083808","url":null,"abstract":"In this paper, we first introduce a new network paradigm, called cybertwin based network architecture for 6G, which consists a cloud-centric network architecture and a radio access network architecture. The cybertwin serves as communications assistant, network behavior logger, and digital asset owner. The proposed cloud-centric network architecture can allocate computing, caching, communications resources coordinately, support locator/identifier separation, provide some embed security properties, and support the data market for privacy data. The new radio access network architecture, which can fully decouple the control and data base stations and entirely separate uplink and downlink, significantly enhance the spectrum utilization, reduce the network energy consumption and improve the quality of user experience.","PeriodicalId":385212,"journal":{"name":"2020 2nd 6G Wireless Summit (6G SUMMIT)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121459781","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}
Pub Date : 2020-03-01DOI: 10.1109/6GSUMMIT49458.2020.9083786
S. Lagén, Natale Patriciello, L. Giupponi
In order to look into the future, it is essential to review the history. Traditionally, the unlicensed spectrum has been widely dominated by Wi-Fi (IEEE 802.11-based) technologies. However, in current deployments, due to the recent cellular (3GPP LTE and NR-based) technologies operation expansion to the unlicensed spectrum, IEEE and 3GPP technologies compete for the access. In this paper, we review the history of IEEE and 3GPP technologies operation in the unlicensed spectrum and highlight future trends. We will show that, as a result of the competition, both technologies are converging to use similar features in the radio access, such as large bandwidth operations and efficient designs. Then, we will expose options for their future convergence, including cellular and Wi-Fi interworking, as well as the combination of cellular and Wi-Fi connections in unlicensed bands. Finally, based on current competition-based deployments, we present a system-level evaluation of NR-U and Wi - Fi coexistence in the 60 GHz unlicensed spectrum bands.
{"title":"Cellular and Wi-Fi in Unlicensed Spectrum: Competition leading to Convergence","authors":"S. Lagén, Natale Patriciello, L. Giupponi","doi":"10.1109/6GSUMMIT49458.2020.9083786","DOIUrl":"https://doi.org/10.1109/6GSUMMIT49458.2020.9083786","url":null,"abstract":"In order to look into the future, it is essential to review the history. Traditionally, the unlicensed spectrum has been widely dominated by Wi-Fi (IEEE 802.11-based) technologies. However, in current deployments, due to the recent cellular (3GPP LTE and NR-based) technologies operation expansion to the unlicensed spectrum, IEEE and 3GPP technologies compete for the access. In this paper, we review the history of IEEE and 3GPP technologies operation in the unlicensed spectrum and highlight future trends. We will show that, as a result of the competition, both technologies are converging to use similar features in the radio access, such as large bandwidth operations and efficient designs. Then, we will expose options for their future convergence, including cellular and Wi-Fi interworking, as well as the combination of cellular and Wi-Fi connections in unlicensed bands. Finally, based on current competition-based deployments, we present a system-level evaluation of NR-U and Wi - Fi coexistence in the 60 GHz unlicensed spectrum bands.","PeriodicalId":385212,"journal":{"name":"2020 2nd 6G Wireless Summit (6G SUMMIT)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114425765","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}
Pub Date : 2020-03-01DOI: 10.1109/6GSUMMIT49458.2020.9083799
Anil Yesilkaya, T. Çogalan, S. Erkucuk, Yalçin Sadi, E. Panayirci, H. Haas, H. Poor
Optical wireless communications (OWC) and its potential to solve physical layer security (PLS) issues are becoming important research areas in 6G communications systems. In this paper, an overview of PLS in visible light communications (VLC), is presented. Then, two new PLS techniques based on generalized space shift keying (GSSK) modulation with spatial constellation design (SCD) and non-orthogonal multiple access (NOMA) cooperative relaying are introduced. In the first technique, the PLS of the system is enhanced by the appropriate selection of a precoding matrix for randomly activated light emitting diodes (LEDs). With the aid of a legitimate user's (Bob's) channel state information (CSI) at the transmitter (CSIT), the bit error ratio (BER) of Bob is minimized while the BER performance of the potential eavesdroppers (Eves) is significantly degraded. In the second technique, superposition coding with uniform signaling is used at the transmitter and relays. The design of secure beamforming vectors at the relay nodes along with NOMA techniques is used to enhance PLS in a VLC system. Insights gained from the improved security levels of the proposed techniques are used to discuss how PLS can be further improved in future generation communication systems by using VLC.
{"title":"Physical-Layer Security in Visible Light Communications","authors":"Anil Yesilkaya, T. Çogalan, S. Erkucuk, Yalçin Sadi, E. Panayirci, H. Haas, H. Poor","doi":"10.1109/6GSUMMIT49458.2020.9083799","DOIUrl":"https://doi.org/10.1109/6GSUMMIT49458.2020.9083799","url":null,"abstract":"Optical wireless communications (OWC) and its potential to solve physical layer security (PLS) issues are becoming important research areas in 6G communications systems. In this paper, an overview of PLS in visible light communications (VLC), is presented. Then, two new PLS techniques based on generalized space shift keying (GSSK) modulation with spatial constellation design (SCD) and non-orthogonal multiple access (NOMA) cooperative relaying are introduced. In the first technique, the PLS of the system is enhanced by the appropriate selection of a precoding matrix for randomly activated light emitting diodes (LEDs). With the aid of a legitimate user's (Bob's) channel state information (CSI) at the transmitter (CSIT), the bit error ratio (BER) of Bob is minimized while the BER performance of the potential eavesdroppers (Eves) is significantly degraded. In the second technique, superposition coding with uniform signaling is used at the transmitter and relays. The design of secure beamforming vectors at the relay nodes along with NOMA techniques is used to enhance PLS in a VLC system. Insights gained from the improved security levels of the proposed techniques are used to discuss how PLS can be further improved in future generation communication systems by using VLC.","PeriodicalId":385212,"journal":{"name":"2020 2nd 6G Wireless Summit (6G SUMMIT)","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127518499","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}
Pub Date : 2020-03-01DOI: 10.1109/6GSUMMIT49458.2020.9083852
F. Zanella, H. Filgueiras, G. Valério, C. Dartora, A. Mariano, A. S.
This work is regarding a novel approach for modeling nano-antennas, based on plasmonic charge distribution, for 6G communications operating in THz. We propose to apply boundary-free and generalized substrate mathematical model for properly predicting the THz device operation, as well as understanding its physical behavior, either in the frequency and space domains. Numerical results demonstrate plasmonic resonances up to 47 THz as a function of temperature, which has been varied from 30 to 300 K.
{"title":"Nano-Antenna Modelling Based on Plasmonic Charge Distribution for THz-based 6G Applications","authors":"F. Zanella, H. Filgueiras, G. Valério, C. Dartora, A. Mariano, A. S.","doi":"10.1109/6GSUMMIT49458.2020.9083852","DOIUrl":"https://doi.org/10.1109/6GSUMMIT49458.2020.9083852","url":null,"abstract":"This work is regarding a novel approach for modeling nano-antennas, based on plasmonic charge distribution, for 6G communications operating in THz. We propose to apply boundary-free and generalized substrate mathematical model for properly predicting the THz device operation, as well as understanding its physical behavior, either in the frequency and space domains. Numerical results demonstrate plasmonic resonances up to 47 THz as a function of temperature, which has been varied from 30 to 300 K.","PeriodicalId":385212,"journal":{"name":"2020 2nd 6G Wireless Summit (6G SUMMIT)","volume":"261 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126452053","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}
Pub Date : 2020-03-01DOI: 10.1109/6GSUMMIT49458.2020.9083916
L. Mucchi, S. Jayousi, S. Caputo, E. Paoletti, P. Zoppi, Simona Geli, Pietro Dionisio
The current implementation of 5G technology has pushed the academic community to think about what is next. To properly answer this question, we have to figure out which will be the needs in the future. This paper deals with the answers to those questions for the health vertical of 6G. The grown and the aging of population worldwide make the current healthcare systems unsustainable in the future. Wireless health has to be implemented to let all citizens be followed and managed in the health process of their life by pursuing an economically viable way for the community. 6G is envisioned to be a technology which will not only make the wireless healthcare true, but it also will allow the Internet of Bio-Nano-Things, letting the human body be part of the “Net”. Very low complex wearable/implantable devices will be part of our everyday life, which can recover information about our health and lifestyle from every object we interact with, from a bottle of water to a smart drug.
{"title":"How 6G Technology Can Change the Future Wireless Healthcare","authors":"L. Mucchi, S. Jayousi, S. Caputo, E. Paoletti, P. Zoppi, Simona Geli, Pietro Dionisio","doi":"10.1109/6GSUMMIT49458.2020.9083916","DOIUrl":"https://doi.org/10.1109/6GSUMMIT49458.2020.9083916","url":null,"abstract":"The current implementation of 5G technology has pushed the academic community to think about what is next. To properly answer this question, we have to figure out which will be the needs in the future. This paper deals with the answers to those questions for the health vertical of 6G. The grown and the aging of population worldwide make the current healthcare systems unsustainable in the future. Wireless health has to be implemented to let all citizens be followed and managed in the health process of their life by pursuing an economically viable way for the community. 6G is envisioned to be a technology which will not only make the wireless healthcare true, but it also will allow the Internet of Bio-Nano-Things, letting the human body be part of the “Net”. Very low complex wearable/implantable devices will be part of our everyday life, which can recover information about our health and lifestyle from every object we interact with, from a bottle of water to a smart drug.","PeriodicalId":385212,"journal":{"name":"2020 2nd 6G Wireless Summit (6G SUMMIT)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114950407","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}
Pub Date : 2020-03-01DOI: 10.1109/6GSUMMIT49458.2020.9083854
G. Charbit, Debby Lin, Kader Medles, Linda Li, I. Fu
Satellites operated in L/S satellite frequency bands can provide global coverage for Internet of Things (IoT) services with relatively smaller propagation loss and simpler antenna requirements. Satellite IoT networks and terrestrial IoT networks will be complementary parts of future 5G and 6G mobile cellular networks to enable fully seamless and resilient IoT services. Designing a backward compatible air interface with minimal changes with respect to existing terrestrial solutions is of paramount importance towards achieving the seamless mobility. This paper will introduce key system aspects by example of 3GPP Narrow-Band IoT (NB-IoT) air interface for Non-Terrestrial Networks (NTN). In particular, the system design challenges will be investigated and the performance impact with design tradeoffs will be evaluated.
{"title":"Space-Terrestrial Radio Network Integration for IoT","authors":"G. Charbit, Debby Lin, Kader Medles, Linda Li, I. Fu","doi":"10.1109/6GSUMMIT49458.2020.9083854","DOIUrl":"https://doi.org/10.1109/6GSUMMIT49458.2020.9083854","url":null,"abstract":"Satellites operated in L/S satellite frequency bands can provide global coverage for Internet of Things (IoT) services with relatively smaller propagation loss and simpler antenna requirements. Satellite IoT networks and terrestrial IoT networks will be complementary parts of future 5G and 6G mobile cellular networks to enable fully seamless and resilient IoT services. Designing a backward compatible air interface with minimal changes with respect to existing terrestrial solutions is of paramount importance towards achieving the seamless mobility. This paper will introduce key system aspects by example of 3GPP Narrow-Band IoT (NB-IoT) air interface for Non-Terrestrial Networks (NTN). In particular, the system design challenges will be investigated and the performance impact with design tradeoffs will be evaluated.","PeriodicalId":385212,"journal":{"name":"2020 2nd 6G Wireless Summit (6G SUMMIT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129530032","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}
Pub Date : 2020-03-01DOI: 10.1109/6GSUMMIT49458.2020.9083911
Markku Jokinen, M. Berg, H. Karvonen, M. Leinonen, T. Hänninen, A. Pouttu
The current trend of delivering goods is to use lockers located close to the customers. The locker needs to communicate with a delivery system, which is most convenient to achieve with wireless technologies. There are mechanical, industrial design and reliability advantages to place a radio unit inside of the locker. However, it is challenging from a radio communication perspective, especially with conducting door material like metal. In this work, RF radiation performance from inside of the metallic locker with two different door materials was studied. The studied RF frequencies cover operational frequencies of LTE NBIoT, Sigfox, LoRa, Wifi, and 5G NR at 3.5 GHz. The simulations and measurements show that the radiation pattern of the metal door locker resemble radiation pattern of array. The main radiation direction with metal doors can be backside of the locker, while with a wood laminate the primary radiation direction is toward front side of the locker.
{"title":"Characterization of Effects of Door Materials to Integrated Radio Radiation Patterns in Locker Unit","authors":"Markku Jokinen, M. Berg, H. Karvonen, M. Leinonen, T. Hänninen, A. Pouttu","doi":"10.1109/6GSUMMIT49458.2020.9083911","DOIUrl":"https://doi.org/10.1109/6GSUMMIT49458.2020.9083911","url":null,"abstract":"The current trend of delivering goods is to use lockers located close to the customers. The locker needs to communicate with a delivery system, which is most convenient to achieve with wireless technologies. There are mechanical, industrial design and reliability advantages to place a radio unit inside of the locker. However, it is challenging from a radio communication perspective, especially with conducting door material like metal. In this work, RF radiation performance from inside of the metallic locker with two different door materials was studied. The studied RF frequencies cover operational frequencies of LTE NBIoT, Sigfox, LoRa, Wifi, and 5G NR at 3.5 GHz. The simulations and measurements show that the radiation pattern of the metal door locker resemble radiation pattern of array. The main radiation direction with metal doors can be backside of the locker, while with a wood laminate the primary radiation direction is toward front side of the locker.","PeriodicalId":385212,"journal":{"name":"2020 2nd 6G Wireless Summit (6G SUMMIT)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125697631","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}
Pub Date : 2020-03-01DOI: 10.1109/6GSUMMIT49458.2020.9083875
Z. Khan, Janne J. Lehtomäki, Chanaka Ganewattha, S. Shahabuddin
Cloud/software-based wireless resource controllers have been recently proposed to exploit radio frequency (RF) data analytics for a network control, configuration and management. For efficient resource controller design, tracking the right metrics in real-time (analytics) and making realistic predictions (deep learning) will play an important role to increase its efficiency. This factor becomes particularly critical as radio environments are generally dynamic, and the data sets collected may exhibit shift in distribution over time and/or space. When a trained model is deployed at the controller without taking into account dataset shift, a large amount of prediction errors may take place. This paper quantifies dataset shift in real wireless physical layer data by using a statistical distance method called earth mover's distance (EMD). It utilizes an FPGA to process in real-time the inphase and quadrature (IQ) samples to obtain useful information, such as histograms of wireless channel utilization (CU). We have prototyped the data processing modules on a Xilinx System on Chip (SoC) board using Vivado, Vivado HLS, SDK and MATLAB tools. The histograms are sent as low-overhead analytics to the resource controller server where they are processed to evaluate dataset shift. The presented results provide insight into dataset shift in real wireless CU data collected over multiple weeks in the University of Oulu using the implemented modules on SoC devices. The results can be used to design approaches that can prevent failures due to datashift in deep learning models for wireless networks.
{"title":"Histograms to Quantify Dataset Shift for Spectrum Data Analytics: A SoC Based Device Perspective","authors":"Z. Khan, Janne J. Lehtomäki, Chanaka Ganewattha, S. Shahabuddin","doi":"10.1109/6GSUMMIT49458.2020.9083875","DOIUrl":"https://doi.org/10.1109/6GSUMMIT49458.2020.9083875","url":null,"abstract":"Cloud/software-based wireless resource controllers have been recently proposed to exploit radio frequency (RF) data analytics for a network control, configuration and management. For efficient resource controller design, tracking the right metrics in real-time (analytics) and making realistic predictions (deep learning) will play an important role to increase its efficiency. This factor becomes particularly critical as radio environments are generally dynamic, and the data sets collected may exhibit shift in distribution over time and/or space. When a trained model is deployed at the controller without taking into account dataset shift, a large amount of prediction errors may take place. This paper quantifies dataset shift in real wireless physical layer data by using a statistical distance method called earth mover's distance (EMD). It utilizes an FPGA to process in real-time the inphase and quadrature (IQ) samples to obtain useful information, such as histograms of wireless channel utilization (CU). We have prototyped the data processing modules on a Xilinx System on Chip (SoC) board using Vivado, Vivado HLS, SDK and MATLAB tools. The histograms are sent as low-overhead analytics to the resource controller server where they are processed to evaluate dataset shift. The presented results provide insight into dataset shift in real wireless CU data collected over multiple weeks in the University of Oulu using the implemented modules on SoC devices. The results can be used to design approaches that can prevent failures due to datashift in deep learning models for wireless networks.","PeriodicalId":385212,"journal":{"name":"2020 2nd 6G Wireless Summit (6G SUMMIT)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133366443","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}
Pub Date : 2020-03-01DOI: 10.1109/6GSUMMIT49458.2020.9083890
Jean-Baptiste Doré, D. Belot, E. Mercier, Simon Bicaïs, G. Gougeon, Y. Corre, B. Miscopein, D. Kténas, E. Strinati
Wireless communication in millimeter wave bands, namely above 20 GHz and up to 300 GHz is foreseen as a key enabler technology for the next generation of wireless systems. The huge available bandwidth is contemplated to achieve high data rate wireless communications, and hence, to fulfill the requirements of future wireless networks. Several Beyond 5G applications are considered for these systems: high capacity backhaul, enhanced hot-spot kiosk as well as short-range Device-to-Device communications. In this paper we propose to discuss the trade-offs between scenario requirements and current silicon technologies limits to draw a technology roadmap for the next generation of wireless connectivity in D-band.
{"title":"Technology Roadmap for Beyond 5G Wireless Connectivity in D-band","authors":"Jean-Baptiste Doré, D. Belot, E. Mercier, Simon Bicaïs, G. Gougeon, Y. Corre, B. Miscopein, D. Kténas, E. Strinati","doi":"10.1109/6GSUMMIT49458.2020.9083890","DOIUrl":"https://doi.org/10.1109/6GSUMMIT49458.2020.9083890","url":null,"abstract":"Wireless communication in millimeter wave bands, namely above 20 GHz and up to 300 GHz is foreseen as a key enabler technology for the next generation of wireless systems. The huge available bandwidth is contemplated to achieve high data rate wireless communications, and hence, to fulfill the requirements of future wireless networks. Several Beyond 5G applications are considered for these systems: high capacity backhaul, enhanced hot-spot kiosk as well as short-range Device-to-Device communications. In this paper we propose to discuss the trade-offs between scenario requirements and current silicon technologies limits to draw a technology roadmap for the next generation of wireless connectivity in D-band.","PeriodicalId":385212,"journal":{"name":"2020 2nd 6G Wireless Summit (6G SUMMIT)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132190440","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}
Pub Date : 2020-03-01DOI: 10.1109/6GSUMMIT49458.2020.9083734
Mattis Hasler, R. Wittig, E. Matús, G. Fettweis
With each new mobile communication standard, the range of computational complexity increases. For the fifth-generation (5G), it spans over six orders of magnitude. When translated to a series of SDF graphs to represent the baseband modem computation, one SDF for each TTI, every SDF differs from the other in topology and complexity, matching this very range. The tight deadlines for the processing of data packets demand the SDF actors to be as small as possible to allow a high parallelity. Small SDF actors, however, mean a relatively high scheduling overhead per actor, which is especially painful for dynamic scheduling systems. We assume a high payload-to-overhead ratio (~~ 1.0) under which traditional single-threaded scheduling systems will merely be able to service one computation thread. In our approach, the scheduling overhead is decomposed into different stages, and the effort is parallelized to increase the performance a platform can deliver even with a high payload-to-overhead ratio.
{"title":"Balancing Dynamic Scheduling Overhead to Maximize SDF Performance","authors":"Mattis Hasler, R. Wittig, E. Matús, G. Fettweis","doi":"10.1109/6GSUMMIT49458.2020.9083734","DOIUrl":"https://doi.org/10.1109/6GSUMMIT49458.2020.9083734","url":null,"abstract":"With each new mobile communication standard, the range of computational complexity increases. For the fifth-generation (5G), it spans over six orders of magnitude. When translated to a series of SDF graphs to represent the baseband modem computation, one SDF for each TTI, every SDF differs from the other in topology and complexity, matching this very range. The tight deadlines for the processing of data packets demand the SDF actors to be as small as possible to allow a high parallelity. Small SDF actors, however, mean a relatively high scheduling overhead per actor, which is especially painful for dynamic scheduling systems. We assume a high payload-to-overhead ratio (~~ 1.0) under which traditional single-threaded scheduling systems will merely be able to service one computation thread. In our approach, the scheduling overhead is decomposed into different stages, and the effort is parallelized to increase the performance a platform can deliver even with a high payload-to-overhead ratio.","PeriodicalId":385212,"journal":{"name":"2020 2nd 6G Wireless Summit (6G SUMMIT)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129740537","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}
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