Pub Date : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907970
Joana S. Tavares, Helder H. Avelar, H. Salgado, L. Pessoa
This paper proposes the use of a Gaussian window on the array factor as an interference mitigation method, aiming to avoid the computational complexity of the MVDR algorithm at the cost of a slight performance reduction. We show that by optimizing the parameters of the Gaussian window, it is possible to effectively mitigate the interfering signal if it is received within a certain angular range from the desired signal, while being still effective beyond that range. Finally, we show that the effectiveness of this approach is maintained across the full frequency reception range of the Ka-band, and confirm its validity using $8times 8$ and $16times 16$ array sizes.
{"title":"A Gaussian Window for Interference Mitigation in Ka-band Digital Beamforming Systems","authors":"Joana S. Tavares, Helder H. Avelar, H. Salgado, L. Pessoa","doi":"10.1109/CSNDSP54353.2022.9907970","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907970","url":null,"abstract":"This paper proposes the use of a Gaussian window on the array factor as an interference mitigation method, aiming to avoid the computational complexity of the MVDR algorithm at the cost of a slight performance reduction. We show that by optimizing the parameters of the Gaussian window, it is possible to effectively mitigate the interfering signal if it is received within a certain angular range from the desired signal, while being still effective beyond that range. Finally, we show that the effectiveness of this approach is maintained across the full frequency reception range of the Ka-band, and confirm its validity using $8times 8$ and $16times 16$ array sizes.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130402039","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907951
George Amponis, T. Lagkas, V. Argyriou, I. Moscholios, Maria Zevgara, Savvas Ouzounidis, P. Sarigiannidis
With the development of new communication models and the establishment of next-generation cellular communications, new applications have been enabled and new communication requirements have emerged. Flying ad hoc networks are pivotal in supporting this technological leap, and as such, resorting to application- and mobility-aware routing is a promising enabler of this emerging set of use cases. This paper discusses matters of swarm mobility modelling, types of applicable routing protocols, whilst aiming to correlate channel link state awareness with quality of service in different mobility scenarios. The results of this paper will help formulate new methodologies and best practices for ad hoc routing protocols, considering computational and communication quality demands.
{"title":"Swarm Mobility Models and Impact of Link State Awareness in Ad Hoc Routing","authors":"George Amponis, T. Lagkas, V. Argyriou, I. Moscholios, Maria Zevgara, Savvas Ouzounidis, P. Sarigiannidis","doi":"10.1109/CSNDSP54353.2022.9907951","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907951","url":null,"abstract":"With the development of new communication models and the establishment of next-generation cellular communications, new applications have been enabled and new communication requirements have emerged. Flying ad hoc networks are pivotal in supporting this technological leap, and as such, resorting to application- and mobility-aware routing is a promising enabler of this emerging set of use cases. This paper discusses matters of swarm mobility modelling, types of applicable routing protocols, whilst aiming to correlate channel link state awareness with quality of service in different mobility scenarios. The results of this paper will help formulate new methodologies and best practices for ad hoc routing protocols, considering computational and communication quality demands.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123148115","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907902
H. Carrère, C. Calò, A. Balocchi, Joshya Shyamala Rapagopal, X. Marie, Arnaud Wilk, Quentin Hochart, O. Delorme
The material gain of InGaAsP/InGaAsP quantum-well active layers is calculated, including tetragonal strain and confinement effects. For compressively strained structures, the calculated optical bandwidth reaches 150 nm. For structures under tensile strain, the optical bandwidth reaches 110 nm with a polarization sensitivity which is lower than 1 dB between TE and TM emissions over the -3dB optical bandwidth. Further enlargement of the optical bandwidth is expected by reducing the quantum well width.
{"title":"Materials for wide-band amplification","authors":"H. Carrère, C. Calò, A. Balocchi, Joshya Shyamala Rapagopal, X. Marie, Arnaud Wilk, Quentin Hochart, O. Delorme","doi":"10.1109/CSNDSP54353.2022.9907902","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907902","url":null,"abstract":"The material gain of InGaAsP/InGaAsP quantum-well active layers is calculated, including tetragonal strain and confinement effects. For compressively strained structures, the calculated optical bandwidth reaches 150 nm. For structures under tensile strain, the optical bandwidth reaches 110 nm with a polarization sensitivity which is lower than 1 dB between TE and TM emissions over the -3dB optical bandwidth. Further enlargement of the optical bandwidth is expected by reducing the quantum well width.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"280 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121305075","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907904
Henrique Santana, B. Pan, R. Kraemer, K. Prifti, A. Mefleh, N. Calabretta
To fulfil stringent latency requirements of timesensitive applications in 5G and beyond networks, data has to be processed in a decentralized way. The Edge Cloud Network is composed of computational resources placed at most at tens of kilometers far from the sources of the data flows they need to process. Besides the physical proximity, nanosecond-scale reconfiguration time of optical switches and a fast control of the optical networks are also required to guarantee dynamicity with latencies on the order of tens of microseconds. Moreover, photonic switches will enable transparent bypass of nodes reducing costly, power hungry and format dependent optical to electrical to optical interfaces as well as large jitter in electrical switches. In this work, we propose an Edge Cloud network composed of a metro-access ring and optically switched edge data center. SOA-based ROADMs are used in the ring for fast add/drop of wavelengths. The edge data center is composed of top-of-rack switches interconnected via an SOA-based optical switch. A supervisory channel is used by the network nodes to exchange control packets in a time-slotted synchronous fashion, and FPGA-based controllers guarantee nanosecond-scale reconfiguration decisions.
{"title":"Transparent and Fast Reconfigurable Optical Network with Edge Computing Nodes for Beyond 5G applications","authors":"Henrique Santana, B. Pan, R. Kraemer, K. Prifti, A. Mefleh, N. Calabretta","doi":"10.1109/CSNDSP54353.2022.9907904","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907904","url":null,"abstract":"To fulfil stringent latency requirements of timesensitive applications in 5G and beyond networks, data has to be processed in a decentralized way. The Edge Cloud Network is composed of computational resources placed at most at tens of kilometers far from the sources of the data flows they need to process. Besides the physical proximity, nanosecond-scale reconfiguration time of optical switches and a fast control of the optical networks are also required to guarantee dynamicity with latencies on the order of tens of microseconds. Moreover, photonic switches will enable transparent bypass of nodes reducing costly, power hungry and format dependent optical to electrical to optical interfaces as well as large jitter in electrical switches. In this work, we propose an Edge Cloud network composed of a metro-access ring and optically switched edge data center. SOA-based ROADMs are used in the ring for fast add/drop of wavelengths. The edge data center is composed of top-of-rack switches interconnected via an SOA-based optical switch. A supervisory channel is used by the network nodes to exchange control packets in a time-slotted synchronous fashion, and FPGA-based controllers guarantee nanosecond-scale reconfiguration decisions.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122277710","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9908047
C. Raffaelli, Elisabetta Amato, P. Monti, F. Tonini
Network slicing enables resource sharing in high capacity network infrastructures. To support network flexibility in relation to dynamic application scenarios, slice configuration needs changes over time to maintain optimization in resource usage and meet performance constraints. Emerging services like autonomous driving or industrial contexts require critical low latency and high reliability referred to in 5G context as the Ultra Reliable Low Latency Communications (URLLC) service. With reference to this class of services, this paper introduces a methodology to manage slice dynamics in network operation to maintain optimal resource assignment. Simulation results show how slice dynamics impact performance in the presence of different reliability schemes. In particular, the shared protection scheme is shown to perform remarkably better than the dedicated protection one and allows a viable approach to dynamic resource management.
{"title":"Reliable Slicing in Optical Metro Networks with Reconfigurable Backup Resources","authors":"C. Raffaelli, Elisabetta Amato, P. Monti, F. Tonini","doi":"10.1109/CSNDSP54353.2022.9908047","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908047","url":null,"abstract":"Network slicing enables resource sharing in high capacity network infrastructures. To support network flexibility in relation to dynamic application scenarios, slice configuration needs changes over time to maintain optimization in resource usage and meet performance constraints. Emerging services like autonomous driving or industrial contexts require critical low latency and high reliability referred to in 5G context as the Ultra Reliable Low Latency Communications (URLLC) service. With reference to this class of services, this paper introduces a methodology to manage slice dynamics in network operation to maintain optimal resource assignment. Simulation results show how slice dynamics impact performance in the presence of different reliability schemes. In particular, the shared protection scheme is shown to perform remarkably better than the dedicated protection one and allows a viable approach to dynamic resource management.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"336 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122327990","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907923
M. Mohammadi, S. Sadough, Zabih Ghassemlooy
In this paper, we address the secure data transmission through visible light communication (VLC) using physical layer security (PLS) techniques and particularly, optical beamforming with the zero-forcing algorithm. More precisely, we consider the secrecy capacity of classical multiple-input single-output VLC so that the system can deal with eavesdroppers by minimizing the secrecy outage probability (SOP). The considered wireless channel is modeled by the Gaussian distribution, which is subject to amplitude constraints. We quantity the achievable secrecy capacity and SOP for the conventional line-of-sight VLC link and show that how the beamforming can determine the optimal placement of the transmitters. We also show that for a given SOP, the proposed optimal placement offers a signal-to-noise ratio gain of up to 6 dB compared to classical methods such as uniform placement of the transmitters. Our numerical results indicate that the proposed optimal LED arrangement can achieve an SOP of $10^{-10}$ while the SOP with uniform arrangement is equal to $10^{-4}$.
{"title":"Physical Layer Security Enhancement in VLC Using Zero-Forcing Beamforming and Optimized LED Placement","authors":"M. Mohammadi, S. Sadough, Zabih Ghassemlooy","doi":"10.1109/CSNDSP54353.2022.9907923","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907923","url":null,"abstract":"In this paper, we address the secure data transmission through visible light communication (VLC) using physical layer security (PLS) techniques and particularly, optical beamforming with the zero-forcing algorithm. More precisely, we consider the secrecy capacity of classical multiple-input single-output VLC so that the system can deal with eavesdroppers by minimizing the secrecy outage probability (SOP). The considered wireless channel is modeled by the Gaussian distribution, which is subject to amplitude constraints. We quantity the achievable secrecy capacity and SOP for the conventional line-of-sight VLC link and show that how the beamforming can determine the optimal placement of the transmitters. We also show that for a given SOP, the proposed optimal placement offers a signal-to-noise ratio gain of up to 6 dB compared to classical methods such as uniform placement of the transmitters. Our numerical results indicate that the proposed optimal LED arrangement can achieve an SOP of $10^{-10}$ while the SOP with uniform arrangement is equal to $10^{-4}$.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126817940","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907903
Behnaz Majlesein, V. Matus, Cristo Jurado-Verdú, V. Guerra, J. Rabadán, Julio Francisco Rufo Torres
Underwater Wireless Optical Communication (UWOC) is a promising technology to enable underwater communications for exploring and monitoring marine activities due to its high bandwidth and low latency. Furthermore, underwater optical camera communication (UOCC) takes advantage of light-emitting diodes (LEDs) and cameras already embedded in underwater devices (e.g., drones). In this work, a global shutter-based UOCC system is experimentally tested under a sub-pixel condition, where the dimensions of the LED in the image plane (in $mu mathrm{m}$) are smaller than a single pixel. Although the LED projection dimensions are less than a single pixel, the incoming light irradiance spreads over a limited image sensor area. The results reveal that a 2 m link with a bit rate of 8 bps per channel (24 bps in total) can be attained using an RGB LED as a transmitter and a digital camera as a receiver by applying the point spread function for the demodulation. The validation of this system in sub-pixel conditions guarantees the operation of long-distance UOCC links, where extensive LED sources are perceived as single points in the image. In addition, as the LED dimensions in the image plane are significantly small, the camera can effectively accommodate several transmitters, increasing the link throughput considerably.
{"title":"Experimental characterization of sub-pixel underwater optical camera communications","authors":"Behnaz Majlesein, V. Matus, Cristo Jurado-Verdú, V. Guerra, J. Rabadán, Julio Francisco Rufo Torres","doi":"10.1109/CSNDSP54353.2022.9907903","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907903","url":null,"abstract":"Underwater Wireless Optical Communication (UWOC) is a promising technology to enable underwater communications for exploring and monitoring marine activities due to its high bandwidth and low latency. Furthermore, underwater optical camera communication (UOCC) takes advantage of light-emitting diodes (LEDs) and cameras already embedded in underwater devices (e.g., drones). In this work, a global shutter-based UOCC system is experimentally tested under a sub-pixel condition, where the dimensions of the LED in the image plane (in $mu mathrm{m}$) are smaller than a single pixel. Although the LED projection dimensions are less than a single pixel, the incoming light irradiance spreads over a limited image sensor area. The results reveal that a 2 m link with a bit rate of 8 bps per channel (24 bps in total) can be attained using an RGB LED as a transmitter and a digital camera as a receiver by applying the point spread function for the demodulation. The validation of this system in sub-pixel conditions guarantees the operation of long-distance UOCC links, where extensive LED sources are perceived as single points in the image. In addition, as the LED dimensions in the image plane are significantly small, the camera can effectively accommodate several transmitters, increasing the link throughput considerably.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114152009","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}
In this work, we propose a multiple inputs multiple outputs (MIMO) non-line-of-sight (NLOS) optical camera communication (OCC) system with multi-level pulse width modulation (MPWM) and difference-based pulse width recognition (DBPWR) schemes. The MPWM signals transmitted over a NLOS link are recovered using the DBPWR algorithm. Compared with the conventional threshold-based demodulation scheme, the proposed DBPWR scheme has lower complexity, higher reliability, and improved sampling frequency offset tolerance. A total data rate of 3.6 kb/s is experimentally demonstrated for more than 2 m NLOS link using the proposed MIMO OCC system, which is sufficient in many Internet of things applications.
{"title":"Experimental Demonstration of Non-Line-of-Sight MIMO Optical Camera Communications with DBPWR Algorithm","authors":"Ningcong Jiang, Bangjiang Lin, Zabih Ghassemlooy, Tianming Huang, Zhuo Huang, Othman Isam Younus","doi":"10.1109/CSNDSP54353.2022.9907928","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907928","url":null,"abstract":"In this work, we propose a multiple inputs multiple outputs (MIMO) non-line-of-sight (NLOS) optical camera communication (OCC) system with multi-level pulse width modulation (MPWM) and difference-based pulse width recognition (DBPWR) schemes. The MPWM signals transmitted over a NLOS link are recovered using the DBPWR algorithm. Compared with the conventional threshold-based demodulation scheme, the proposed DBPWR scheme has lower complexity, higher reliability, and improved sampling frequency offset tolerance. A total data rate of 3.6 kb/s is experimentally demonstrated for more than 2 m NLOS link using the proposed MIMO OCC system, which is sufficient in many Internet of things applications.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121803999","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9908015
Y. Zhu, Nuo Huang, Weijie Liu, Shangbin Li, Zhengyuan Xu
In this paper, we propose a novel frame synchronization method for underwater optical wireless communication (UOWC) systems with on-off keying (OOK) modulation. Considering the frame structure that sync word is periodically embedded in the bitstream, the proposed method jointly estimates the sync word position, data sequence and channel gain based on the received signals in the period of a frame length. To reduce the implementation complexity, the original estimation problem is further simplified by utilizing the properties of OOK transmission. Simulation and experimental results both demonstrate the superiority of the proposed frame synchronization method over the correlation method. Specifically, experimental results show that the proposed method yields an optical signal-to-noise ratio (SNR) gain of at least 1.5 dB over the correlation method under dynamic channel with bubbles.
{"title":"A Novel Frame Synchronization Scheme for Underwater Optical Wireless Communication with Reduced Complexity","authors":"Y. Zhu, Nuo Huang, Weijie Liu, Shangbin Li, Zhengyuan Xu","doi":"10.1109/CSNDSP54353.2022.9908015","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908015","url":null,"abstract":"In this paper, we propose a novel frame synchronization method for underwater optical wireless communication (UOWC) systems with on-off keying (OOK) modulation. Considering the frame structure that sync word is periodically embedded in the bitstream, the proposed method jointly estimates the sync word position, data sequence and channel gain based on the received signals in the period of a frame length. To reduce the implementation complexity, the original estimation problem is further simplified by utilizing the properties of OOK transmission. Simulation and experimental results both demonstrate the superiority of the proposed frame synchronization method over the correlation method. Specifically, experimental results show that the proposed method yields an optical signal-to-noise ratio (SNR) gain of at least 1.5 dB over the correlation method under dynamic channel with bubbles.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127015355","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907963
Markus Fritscher, Gabriel Dengler, Cord Bleibaum, Michael Niebisch, Reinhard German
The evaluation of large-scale vehicular networks has proven difficult. The researcher has to either do a lot of experiments, reduce simulation accuracy or endure simulation runtimes prohibiting a reasonable investigation. We present a framework that allows preserving simulation accuracy while maintaining reasonable simulation times by cutting the to-be-investigated area into individual tiles. Instead of running on a single CPU core we are able to run the simulation on hundreds of HPC servers in parallel. This yields a speedup of several orders of magnitude, allowing the simulation of entire cities. We validate our approach by investigating different access-point distributions for the city of Ingolstadt.
{"title":"Accelerating Veins Simulations by Utilizing Task Parallelism on a HPC Cluster without Introducing Major Inaccuracies","authors":"Markus Fritscher, Gabriel Dengler, Cord Bleibaum, Michael Niebisch, Reinhard German","doi":"10.1109/CSNDSP54353.2022.9907963","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907963","url":null,"abstract":"The evaluation of large-scale vehicular networks has proven difficult. The researcher has to either do a lot of experiments, reduce simulation accuracy or endure simulation runtimes prohibiting a reasonable investigation. We present a framework that allows preserving simulation accuracy while maintaining reasonable simulation times by cutting the to-be-investigated area into individual tiles. Instead of running on a single CPU core we are able to run the simulation on hundreds of HPC servers in parallel. This yields a speedup of several orders of magnitude, allowing the simulation of entire cities. We validate our approach by investigating different access-point distributions for the city of Ingolstadt.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133488030","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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