Pub Date : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907992
F. M. Alsalami, S. Rajbhandari, Zahir Ahmad, D. Grace
In local oscillator (LLO)-based continuous-variable quantum key distribution (CV-QKD), a difference between the linewidth values of two free-running lasers at Alice and Bob induces a phase drift noise. This work proposes a novel minimax filter-based phase tracking that aims to minimize the phase drift considering maximum residual phase error to achieve optimal phase estimation. Simulation results show that the minimax filter offers a lower phase estimation mean square error (MSE) value compared to the Kalman filter when worst-case phase drift error due to high linewidth difference or high measurement noise values are considered.
{"title":"Scalar Minimax Filter-based Phase Tracking for Continuous-Variable Quantum Key Distribution","authors":"F. M. Alsalami, S. Rajbhandari, Zahir Ahmad, D. Grace","doi":"10.1109/CSNDSP54353.2022.9907992","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907992","url":null,"abstract":"In local oscillator (LLO)-based continuous-variable quantum key distribution (CV-QKD), a difference between the linewidth values of two free-running lasers at Alice and Bob induces a phase drift noise. This work proposes a novel minimax filter-based phase tracking that aims to minimize the phase drift considering maximum residual phase error to achieve optimal phase estimation. Simulation results show that the minimax filter offers a lower phase estimation mean square error (MSE) value compared to the Kalman filter when worst-case phase drift error due to high linewidth difference or high measurement noise values are considered.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"46 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131776974","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/CSNDSP54353.2022.9908040
I. Cano, Giuseppe Caruso, D. Nesset, G. Talli
We evaluate TDEC in a 50G-PON downstream through experiments and show the relation with receiver sensitivity at different fiber lengths and ER. The results show that TDEC effectively follows the penalty induced by transmission impairments.
{"title":"Relation Between TDEC, Extinction Ratio and Chromatic Dispersion in 50G PON","authors":"I. Cano, Giuseppe Caruso, D. Nesset, G. Talli","doi":"10.1109/CSNDSP54353.2022.9908040","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908040","url":null,"abstract":"We evaluate TDEC in a 50G-PON downstream through experiments and show the relation with receiver sensitivity at different fiber lengths and ER. The results show that TDEC effectively follows the penalty induced by transmission impairments.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"66 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":"125680648","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/CSNDSP54353.2022.9908057
Zun Htay, Zabih Ghassemlooy, S. Zvánovec, M. M. Abadi, A. Burton
In this paper, we propose a proof of concept for the software defined-based free space optical communication (FSO) using GNU radio eco-system. We present a highly reconfigurable real-time FSO system to emulate the atmospheric conditions for the medium-to-long transmission range. Using an experimental testbed, we validate the proposed concept utilizing universal software radio peripherals. We show that the software defined FSO system offers greater flexibility, less complexity, and provides real-time signal processing results without the need to change the architecture of the hardware and the physical link space. The system performance is evaluated in terms of the estimated bit error rate under fog and turbulence conditions for 200 m link span.
{"title":"An Experimental Testbed for Implementation and Validation of Software defined FSO under Atmospheric Conditions using USRPs","authors":"Zun Htay, Zabih Ghassemlooy, S. Zvánovec, M. M. Abadi, A. Burton","doi":"10.1109/CSNDSP54353.2022.9908057","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908057","url":null,"abstract":"In this paper, we propose a proof of concept for the software defined-based free space optical communication (FSO) using GNU radio eco-system. We present a highly reconfigurable real-time FSO system to emulate the atmospheric conditions for the medium-to-long transmission range. Using an experimental testbed, we validate the proposed concept utilizing universal software radio peripherals. We show that the software defined FSO system offers greater flexibility, less complexity, and provides real-time signal processing results without the need to change the architecture of the hardware and the physical link space. The system performance is evaluated in terms of the estimated bit error rate under fog and turbulence conditions for 200 m link span.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"11 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":"122200495","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/CSNDSP54353.2022.9907987
Chenyang He, Alexander Tarr, Paddy Tighe, S. Korposh, S. Morgan
A long period grating (LPG) optical fibre sensor modified coated with an Immunoglobulin G (IgG)-binding peptide is reported. The IgG-binding peptide provides a controllable binding affinity towards IgG which is comparable to antibody-antigen interaction due to the non-covalent bonds of the peptide’s amino acid enabling development of a reversible optical fibre immunosensor. A microfluidic system has been developed for reliable flow of liquid over the sensor.
{"title":"Peptide Functionalized Long Period Grating Optical Fibre Sensor for Antibody Measurement with Microfluidic System","authors":"Chenyang He, Alexander Tarr, Paddy Tighe, S. Korposh, S. Morgan","doi":"10.1109/CSNDSP54353.2022.9907987","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907987","url":null,"abstract":"A long period grating (LPG) optical fibre sensor modified coated with an Immunoglobulin G (IgG)-binding peptide is reported. The IgG-binding peptide provides a controllable binding affinity towards IgG which is comparable to antibody-antigen interaction due to the non-covalent bonds of the peptide’s amino acid enabling development of a reversible optical fibre immunosensor. A microfluidic system has been developed for reliable flow of liquid over the sensor.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"9 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132149627","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/CSNDSP54353.2022.9907914
Hongxiang Zhao, Yuwei Qu, Kuiru Wang, J. Yuan, B. Yan, Qiang Wu
A D-shaped photonic crystal fiber surface plasmon resonance sensor with a hollowed-out smiley-faced hole for highly sensitive liquid RI sensing is proposed. The sensor has a maximum sensitivity of up to 17100 nm/RIU in the range of 1.3 to 1.41.
{"title":"D-Shaped Photonic Crystal Fiber Plasmonic Sensor Based on Hollowed-out Smiley-faced hole","authors":"Hongxiang Zhao, Yuwei Qu, Kuiru Wang, J. Yuan, B. Yan, Qiang Wu","doi":"10.1109/CSNDSP54353.2022.9907914","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907914","url":null,"abstract":"A D-shaped photonic crystal fiber surface plasmon resonance sensor with a hollowed-out smiley-faced hole for highly sensitive liquid RI sensing is proposed. The sensor has a maximum sensitivity of up to 17100 nm/RIU in the range of 1.3 to 1.41.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"106 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":"133161236","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/CSNDSP54353.2022.9908041
I. Keramidi, J. Vardakas, K. Ramantas, I. Moscholios, C. Verikoukis
6G networks are envisioned as the key enabler for the intelligent information society of the next decade, targeting to achieve improved performance and satisfy demanding services and applications. This transition from the fifth generation requires novel and efficient approaches in the network design and network management domains that are able to achieve vital key performance indicators related to network densification, network throughput, positioning accuracy, energy efficiency. Cell-free networking is considered as a promising candidate for 6G, as it combines the advantages of distributed systems and massive number of antennas, thus being able to significantly improve the wireless transmission efficiency and provide better coverage. In this paper, we present a simulation study of a cell-free based 6G network that jointly considers the utilization of the communication resources at the radio edge and at the fronthaul. The proposed study considers various techniques for the allocation of the resources at the two network segments, targeting to reduce the case where bandwidth compression (due to unavailability of resources) occur. The evaluation of the proposed solutions reveals that the application of a threshold policy may be beneficial for the end-users in terms of lower bandwidth compression rate.
{"title":"Traffic Management in Cell-Free-Based 6G Networks","authors":"I. Keramidi, J. Vardakas, K. Ramantas, I. Moscholios, C. Verikoukis","doi":"10.1109/CSNDSP54353.2022.9908041","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908041","url":null,"abstract":"6G networks are envisioned as the key enabler for the intelligent information society of the next decade, targeting to achieve improved performance and satisfy demanding services and applications. This transition from the fifth generation requires novel and efficient approaches in the network design and network management domains that are able to achieve vital key performance indicators related to network densification, network throughput, positioning accuracy, energy efficiency. Cell-free networking is considered as a promising candidate for 6G, as it combines the advantages of distributed systems and massive number of antennas, thus being able to significantly improve the wireless transmission efficiency and provide better coverage. In this paper, we present a simulation study of a cell-free based 6G network that jointly considers the utilization of the communication resources at the radio edge and at the fronthaul. The proposed study considers various techniques for the allocation of the resources at the two network segments, targeting to reduce the case where bandwidth compression (due to unavailability of resources) occur. The evaluation of the proposed solutions reveals that the application of a threshold policy may be beneficial for the end-users in terms of lower bandwidth compression rate.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"4 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":"133264547","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/CSNDSP54353.2022.9907913
Leonardo Leyva, D. Castanheira, Adão Silva, A. Gameiro
This paper studies the performance of the quasi-orthogonal Tirkkonen spatial-frequency block code (SFBC) for integrated sensing and communication (ISAC) scenarios. The considered scenario is a MIMO monostatic ISAC base station (BS), where transmitter and radar antenna arrays are co-located enabling the virtual array concept. The quasi-orthogonal Tirkkonen SFBC is encapsulated in an OFDM waveform, the radar processing is performed over the resulting OFDM frame. The performance in terms of radar and communication metrics of Tirkkonen SFBC is presented and compared with orthogonal Alamouti SFBC and the spectrally interleaved waveform approach, widely used in radar-like scenarios. The resulting Mean Square Error (MSE) of the Angle of Arrival (AoA) is chosen as the radar metric while the bit-error-rate (BER) is used to present the communication performance. The results show that Tirkkonen is a good candidate for future ISAC scenarios.
{"title":"Quasi-Orthogonal SFBC for Monostatic MIMO ISAC Scenarios","authors":"Leonardo Leyva, D. Castanheira, Adão Silva, A. Gameiro","doi":"10.1109/CSNDSP54353.2022.9907913","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907913","url":null,"abstract":"This paper studies the performance of the quasi-orthogonal Tirkkonen spatial-frequency block code (SFBC) for integrated sensing and communication (ISAC) scenarios. The considered scenario is a MIMO monostatic ISAC base station (BS), where transmitter and radar antenna arrays are co-located enabling the virtual array concept. The quasi-orthogonal Tirkkonen SFBC is encapsulated in an OFDM waveform, the radar processing is performed over the resulting OFDM frame. The performance in terms of radar and communication metrics of Tirkkonen SFBC is presented and compared with orthogonal Alamouti SFBC and the spectrally interleaved waveform approach, widely used in radar-like scenarios. The resulting Mean Square Error (MSE) of the Angle of Arrival (AoA) is chosen as the radar metric while the bit-error-rate (BER) is used to present the communication performance. The results show that Tirkkonen is a good candidate for future ISAC scenarios.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"1 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":"132598522","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/CSNDSP54353.2022.9907979
H. Ivanov, E. Leitgeb
Terrestrial Free Space Optical (FSO) systems aim to provide an ultra-broadband connectivity within core, metro and access networks. While FSO is considered as a promising solution that meets the data throughput demands of new 5G and Internet of Things (IoT) era, the adverse atmospheric effects and in particular Mie scattering (fog), impose significant risks for communication outage events. In order to foresee and evaluate those fog-related issues within an optical wireless link, the current paper reports on experimental setup utilizing artificial fog sources based on mixture of different highly purified glycols and water. As means of determining the approach feasibility, both atmospheric microphysics by means of empirical modified Gamma Particle Size Distribution (PSD) fog functions and Mie theory are used to estimate the artificially simulated Mie scattering attenuation of glycol-water fluids characterized by their complex refractive indices. The obtained results for moderate continental fog and different glycol concentration demonstrate 69.7 dB/km FSO losses at average which outcome coincides with a naturally occurred fog event. Moreover, all results are compared with analyzed PSDs obtained based on laser diffraction system for two types of fog machines that operate with the considered glycol-water fluids.
{"title":"Artificial Generation of Mie Scattering Conditions for FSO Fog Chambers","authors":"H. Ivanov, E. Leitgeb","doi":"10.1109/CSNDSP54353.2022.9907979","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907979","url":null,"abstract":"Terrestrial Free Space Optical (FSO) systems aim to provide an ultra-broadband connectivity within core, metro and access networks. While FSO is considered as a promising solution that meets the data throughput demands of new 5G and Internet of Things (IoT) era, the adverse atmospheric effects and in particular Mie scattering (fog), impose significant risks for communication outage events. In order to foresee and evaluate those fog-related issues within an optical wireless link, the current paper reports on experimental setup utilizing artificial fog sources based on mixture of different highly purified glycols and water. As means of determining the approach feasibility, both atmospheric microphysics by means of empirical modified Gamma Particle Size Distribution (PSD) fog functions and Mie theory are used to estimate the artificially simulated Mie scattering attenuation of glycol-water fluids characterized by their complex refractive indices. The obtained results for moderate continental fog and different glycol concentration demonstrate 69.7 dB/km FSO losses at average which outcome coincides with a naturally occurred fog event. Moreover, all results are compared with analyzed PSDs obtained based on laser diffraction system for two types of fog machines that operate with the considered glycol-water fluids.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"96 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":"122815858","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/CSNDSP54353.2022.9908037
Miquel Masanas, V. Polo, J. Prat
Two applications for splitter-based, coherent passive optical networks are investigated. Coherent technologies enable ultra-dense wavelength division multiplexing, increasing the dedicated data rates per application, the power budget and the spectral efficiency of the network, all within a single fibre for bidirectional transmission. In these works, optical single sideband (OSSB) technologies, along with RF modulations, are used to decrease complexity in the proposed networks.
{"title":"Single Sideband Techniques for Next Generation Low-Cost UD-WDM Coherent PONs","authors":"Miquel Masanas, V. Polo, J. Prat","doi":"10.1109/CSNDSP54353.2022.9908037","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908037","url":null,"abstract":"Two applications for splitter-based, coherent passive optical networks are investigated. Coherent technologies enable ultra-dense wavelength division multiplexing, increasing the dedicated data rates per application, the power budget and the spectral efficiency of the network, all within a single fibre for bidirectional transmission. In these works, optical single sideband (OSSB) technologies, along with RF modulations, are used to decrease complexity in the proposed networks.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"32 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":"114974847","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/CSNDSP54353.2022.9907956
Zun Htay, Bharath Raj Karanam, Carlos Guerra-Yánez, Zabih Ghassemlooy, S. Zvánovec, M. Khalighi, M. M. Abadi
In this paper, we experimentally demonstrate the implementation of an optical wireless communication system in a software-defined radio platform using GNU radio ecosystem and verify the link performance in terms of bandwidth jitter by changing the interpolation parameters in the software domain. We show that the software-defined optical system provides high reconfigurability and can be easily implemented without the need to change the hardware architecture, thus providing a real-time software-based system that is highly desirable.
{"title":"Demonstration of An Optical Wireless Communication System using a Software-Defined Ecosystem","authors":"Zun Htay, Bharath Raj Karanam, Carlos Guerra-Yánez, Zabih Ghassemlooy, S. Zvánovec, M. Khalighi, M. M. Abadi","doi":"10.1109/CSNDSP54353.2022.9907956","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907956","url":null,"abstract":"In this paper, we experimentally demonstrate the implementation of an optical wireless communication system in a software-defined radio platform using GNU radio ecosystem and verify the link performance in terms of bandwidth jitter by changing the interpolation parameters in the software domain. We show that the software-defined optical system provides high reconfigurability and can be easily implemented without the need to change the hardware architecture, thus providing a real-time software-based system that is highly desirable.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"31 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":"116922169","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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