Pub Date : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907984
Vinson Javiero, M. Ijaz, S. Ekpo, B. Adebisi, Chen Chen, Pablo Palacios, César A. Azurdia-Meza, I. Soto, M. Khalighi
In the past decade, visible light communication (VLC) technology has received increasing attention for numerous applications, including for indoor visible light positioning (VLP). The transmission medium for indoor VLP systems in industrial environments could include smoke particles, oil vapors, water mist, and industrial fumes. This work investigates the indoor atmospheric attenuation on the performance of VLP for industrial environments. The considered VLP technique uses trilateration based on the Cayley-Menger Determinant algorithm. The positioning method uses received signal strength (RSS) to estimate a drone’s position. Smoke and fog effects for the indoor atmospheric attenuations have been considered based on visibility (V) ranging from 0.3 km to 1 km. The results show that the positioning error increases from an average value of 6.53 cm for clear air to 46.64 cm in smoke and 46.27 cm in fog attenuation with reduced visibility (V=0.3 km), respectively. The results also show that there is a slightly lower received power in the presence of smoke, as compared to fog, for a given visibility range.
{"title":"Investigation of Indoor Atmospheric Attenuation in Visible Light Positioning for Industrial Applications","authors":"Vinson Javiero, M. Ijaz, S. Ekpo, B. Adebisi, Chen Chen, Pablo Palacios, César A. Azurdia-Meza, I. Soto, M. Khalighi","doi":"10.1109/CSNDSP54353.2022.9907984","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907984","url":null,"abstract":"In the past decade, visible light communication (VLC) technology has received increasing attention for numerous applications, including for indoor visible light positioning (VLP). The transmission medium for indoor VLP systems in industrial environments could include smoke particles, oil vapors, water mist, and industrial fumes. This work investigates the indoor atmospheric attenuation on the performance of VLP for industrial environments. The considered VLP technique uses trilateration based on the Cayley-Menger Determinant algorithm. The positioning method uses received signal strength (RSS) to estimate a drone’s position. Smoke and fog effects for the indoor atmospheric attenuations have been considered based on visibility (V) ranging from 0.3 km to 1 km. The results show that the positioning error increases from an average value of 6.53 cm for clear air to 46.64 cm in smoke and 46.27 cm in fog attenuation with reduced visibility (V=0.3 km), respectively. The results also show that there is a slightly lower received power in the presence of smoke, as compared to fog, for a given visibility range.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"50 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":"123990929","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/CSNDSP54353.2022.9907943
Aníbal J. S. Ferreira
Premature ventricular contractions (PVC), or extrasystoles, represent a type of cardiac arrhythmia that is common among the general population and, notably, among athletes or individuals who exercise frequently. PVC may be asymptomatic and not clinically relevant when their rate is low, up to around 0.5%, or may be symptomatic and clinically relevant when it is high, in the order of or above 10%. ECG analysis in association with a cardiac stress test is important to detect and characterize PVC and to diagnose the heart condition and operation. In this paper, we describe and test a simple signal processing approach that can be used to effectively pinpoint subtle PVC occurrences in various physical effort conditions. In this regard, we discuss i) three important conditions to be met such that PVC are categorized as benign, ii) the design and implementation of a cardiac stress test and ECG data collection, iii) the algorithm analyzing and extracting information from the detected PVC occurrences, and iv) we present and discuss the obtained results, and conclude on their significance.
{"title":"Simple and effective signal processing pinpointing subtle premature ventricular contractions inferred from increasing physical effort","authors":"Aníbal J. S. Ferreira","doi":"10.1109/CSNDSP54353.2022.9907943","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907943","url":null,"abstract":"Premature ventricular contractions (PVC), or extrasystoles, represent a type of cardiac arrhythmia that is common among the general population and, notably, among athletes or individuals who exercise frequently. PVC may be asymptomatic and not clinically relevant when their rate is low, up to around 0.5%, or may be symptomatic and clinically relevant when it is high, in the order of or above 10%. ECG analysis in association with a cardiac stress test is important to detect and characterize PVC and to diagnose the heart condition and operation. In this paper, we describe and test a simple signal processing approach that can be used to effectively pinpoint subtle PVC occurrences in various physical effort conditions. In this regard, we discuss i) three important conditions to be met such that PVC are categorized as benign, ii) the design and implementation of a cardiac stress test and ECG data collection, iii) the algorithm analyzing and extracting information from the detected PVC occurrences, and iv) we present and discuss the obtained results, and conclude on their significance.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"27 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":"114859352","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/CSNDSP54353.2022.9907990
Santiago Tabares, V. Polo, R. Sole, J. Prat
The use of Distributed FeedBack lasers for Passive Optical Networks requires specific architecture and appropriate algorithms for fine tuning and spectrum management. These algorithms can be implemented over simple single-mode lasers using thermal closed-loop with a control structure and 2x2 pre-equalization stage; the wavelength and optical power are tuned precisely with negligible oscillations for channels spaced 6.25 GHz under an ultra-dense-wavelength-division-multiplexing scenario.
{"title":"DFB Tuning Functions in Coherent PONs.","authors":"Santiago Tabares, V. Polo, R. Sole, J. Prat","doi":"10.1109/CSNDSP54353.2022.9907990","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907990","url":null,"abstract":"The use of Distributed FeedBack lasers for Passive Optical Networks requires specific architecture and appropriate algorithms for fine tuning and spectrum management. These algorithms can be implemented over simple single-mode lasers using thermal closed-loop with a control structure and 2x2 pre-equalization stage; the wavelength and optical power are tuned precisely with negligible oscillations for channels spaced 6.25 GHz under an ultra-dense-wavelength-division-multiplexing scenario.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"13 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":"126463747","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/CSNDSP54353.2022.9907940
B. M. Oliveira, F. Guiomar, M. Medeiros, P. Monteiro
With coherent optical systems expanding their use to short-reach applications, it is imperative to achieve a cost and power-efficient solution that allows massive deployment. As increasingly higher data rates are required for shorter distances, the standardization of 400ZR and 800G for coherent transceivers is motivating the pursuit of unamplified systems, giving rise to new challenges, particularly due to the inherent peak-power constraint. In this paper, we discuss methods to improve the performance of unamplified coherent systems; particularly, we show the impact of pulse shaping and how it might undermine the system performance, and show how new advanced methods such as probabilistic constellation shaping can be used within these systems.
{"title":"On the Enhancement of Unamplified Optical Coherent Systems","authors":"B. M. Oliveira, F. Guiomar, M. Medeiros, P. Monteiro","doi":"10.1109/CSNDSP54353.2022.9907940","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907940","url":null,"abstract":"With coherent optical systems expanding their use to short-reach applications, it is imperative to achieve a cost and power-efficient solution that allows massive deployment. As increasingly higher data rates are required for shorter distances, the standardization of 400ZR and 800G for coherent transceivers is motivating the pursuit of unamplified systems, giving rise to new challenges, particularly due to the inherent peak-power constraint. In this paper, we discuss methods to improve the performance of unamplified coherent systems; particularly, we show the impact of pulse shaping and how it might undermine the system performance, and show how new advanced methods such as probabilistic constellation shaping can be used within these systems.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"7 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":"126416265","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/CSNDSP54353.2022.9907962
Madi Makin, S. Arzykulov, Khaled Maaiuf Rabie, G. Nauryzbayev
Low latency, high-data rates, and massive connectivity are the requirements for the emerging wireless technologies that will give a chance to high-demanding and progressive innovations in many spheres. Reconfigurable intelligent surfaces (RISs) are considered to be a promising technology for the rising wireless communication standards. This paper studies the large intelligent surface (LIS) enabled wireless network deploying non-orthogonal multiple access (NOMA) over Nakagami-m channels with non-fixed LIS positions. We propose the LIS partitioning method, where various LIS elements serve different NOMA users depending on their quality of service. Moreover, we also examine the effect of imperfect successive interference cancellation, the number of LIS elements, and their allocation amongst the users. The simulations and followed-up discussions are provided regarding the system’s ergodic capacity measurements.
{"title":"Performance Enhancement via Partitioning Large Intelligent Surfaces in Downlink NOMA Networks","authors":"Madi Makin, S. Arzykulov, Khaled Maaiuf Rabie, G. Nauryzbayev","doi":"10.1109/CSNDSP54353.2022.9907962","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907962","url":null,"abstract":"Low latency, high-data rates, and massive connectivity are the requirements for the emerging wireless technologies that will give a chance to high-demanding and progressive innovations in many spheres. Reconfigurable intelligent surfaces (RISs) are considered to be a promising technology for the rising wireless communication standards. This paper studies the large intelligent surface (LIS) enabled wireless network deploying non-orthogonal multiple access (NOMA) over Nakagami-m channels with non-fixed LIS positions. We propose the LIS partitioning method, where various LIS elements serve different NOMA users depending on their quality of service. Moreover, we also examine the effect of imperfect successive interference cancellation, the number of LIS elements, and their allocation amongst the users. The simulations and followed-up discussions are provided regarding the system’s ergodic capacity measurements.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"446 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":"125775126","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/CSNDSP54353.2022.9907932
P. Adasme, Sergio Cordero, I. Soto, A. D. Firoozabadi
In this paper, we consider two optimization problems related to 5G millimeter wave (mmWave) networks. The first one consists of maximizing the number of covered users using a predefined number of base stations (BSs) while simultaneously minimizing the distances between users and BSs. Whereas the second one minimizes the total number of BSs required to cover all users in the network. Notice that mmWave technology has been conceived in the literature as one of the most promising techniques for 5G networks. However, there are still several issues to be addressed before this technology can be used massively in real-life networks. For example, mmWaves cannot penetrate walls easily and their path loss is high which reduces the transmission distances. We propose mixed-integer programming models to deal with these problems. Our models can solve instances with up to 100 BSs and 1000 users optimally. Our numerical results indicate that minimizing the distances between users and BSs and maximizing user coverage simultaneously leads to instances that are significantly harder to solve. Finally, we report the minimum number of BSs required to cover all users in the network together with the minimum radius that makes it possible.
{"title":"New Formulations for Optimal User Coverage using 5G Millimeter-Wave-based Networks","authors":"P. Adasme, Sergio Cordero, I. Soto, A. D. Firoozabadi","doi":"10.1109/CSNDSP54353.2022.9907932","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907932","url":null,"abstract":"In this paper, we consider two optimization problems related to 5G millimeter wave (mmWave) networks. The first one consists of maximizing the number of covered users using a predefined number of base stations (BSs) while simultaneously minimizing the distances between users and BSs. Whereas the second one minimizes the total number of BSs required to cover all users in the network. Notice that mmWave technology has been conceived in the literature as one of the most promising techniques for 5G networks. However, there are still several issues to be addressed before this technology can be used massively in real-life networks. For example, mmWaves cannot penetrate walls easily and their path loss is high which reduces the transmission distances. We propose mixed-integer programming models to deal with these problems. Our models can solve instances with up to 100 BSs and 1000 users optimally. Our numerical results indicate that minimizing the distances between users and BSs and maximizing user coverage simultaneously leads to instances that are significantly harder to solve. Finally, we report the minimum number of BSs required to cover all users in the network together with the minimum radius that makes it possible.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"45 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":"134416605","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/CSNDSP54353.2022.9908029
Long Chen, Kai Guo, Chen Jiang, Yuehui Ma, Yunqi Liu
We proposed an ultra-sensitive refractive index sensor based on a tapered polarization-maintaining fiber Mach-Zehnder Interferometer using a commercial CO2-laser heating system. The sensitivity of the sensor can be up to 7933.33 nm/RIU.
{"title":"High Sensitivity Interferometric Refractive Index Sensor Based on Tapered Polarization-Maintaining Fiber","authors":"Long Chen, Kai Guo, Chen Jiang, Yuehui Ma, Yunqi Liu","doi":"10.1109/CSNDSP54353.2022.9908029","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908029","url":null,"abstract":"We proposed an ultra-sensitive refractive index sensor based on a tapered polarization-maintaining fiber Mach-Zehnder Interferometer using a commercial CO2-laser heating system. The sensitivity of the sensor can be up to 7933.33 nm/RIU.","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":"131069102","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/CSNDSP54353.2022.9908031
Neda Ahmadi, I. Mporas, P. Kourtessis, J. Senior
Power control (PC) plays a crucial role in massive multiple-input-multiple-output (m-MIMO) networks. Several heuristic algorithms, like the weighted mean square error (WMMSE) algorithm are used to optimise the PC. In order these algorithms to perform the power control they require high computational power. In this paper, we address the problem through the application of machine learning (ML)-based algorithms as they can produce close to optimal solutions with lower computational complexity. We evaluate use of several different machine learning (ML) methods such as deep neural networks (DNN), deep Q-learning (DQL), support vector machines (SVM) with radial basis function (RBF), K-nearest neighbours (KNN), linear regression (LR), and decision trees (DT) to maximise the sum spectral efficiency (SE). The evaluation results demonstrate that the ML based approaches can approximate near to the WMMSE based method.
{"title":"Evaluation of Machine Learning Algorithms on Power Control of Massive MIMO Systems","authors":"Neda Ahmadi, I. Mporas, P. Kourtessis, J. Senior","doi":"10.1109/CSNDSP54353.2022.9908031","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908031","url":null,"abstract":"Power control (PC) plays a crucial role in massive multiple-input-multiple-output (m-MIMO) networks. Several heuristic algorithms, like the weighted mean square error (WMMSE) algorithm are used to optimise the PC. In order these algorithms to perform the power control they require high computational power. In this paper, we address the problem through the application of machine learning (ML)-based algorithms as they can produce close to optimal solutions with lower computational complexity. We evaluate use of several different machine learning (ML) methods such as deep neural networks (DNN), deep Q-learning (DQL), support vector machines (SVM) with radial basis function (RBF), K-nearest neighbours (KNN), linear regression (LR), and decision trees (DT) to maximise the sum spectral efficiency (SE). The evaluation results demonstrate that the ML based approaches can approximate near to the WMMSE based method.","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":"133027459","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/CSNDSP54353.2022.9908011
Dhiraj Kumar Pate, A. Mandloi, Varun Srivastava, A. Tripathi
Modern free-space optics (FSO) communication have considered as solution for the scenarios like quick connectivity between two remote terrestrial links, radio wave pollution prohibited areas (for e.g. hospitals and industrial facilities). However, the reliability of the link are severely affected due to adverse atmospheric conditions due to turbulence and scattering media. This article presents the 112 Gbps data links using single channel dual-polarized (DP) quadrature phase shift keying (QPSK) modulation using Reed-Solomon (RS) codes as error correcting codes for improving the reliability of FSO communication links under fog affected atmospheric conditions. The coherent detection with digital signal processing (DSP) is considered for the demodulation of above optical received signal. Bit error rate (BER), received signal power, error vector magnitude (EVM), and coding gain were used to assess the system’s performance. Based on the result outcomes, on comparing the link performance under moderate fog conditions $approx$3dB coding gain with $approx$0.1 km link improvement achieved for the target log(BER) of −3.
{"title":"Investigation of RS-Code DP-QPSK enabled FSO Communication Link under various Atmospheric Conditions","authors":"Dhiraj Kumar Pate, A. Mandloi, Varun Srivastava, A. Tripathi","doi":"10.1109/CSNDSP54353.2022.9908011","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908011","url":null,"abstract":"Modern free-space optics (FSO) communication have considered as solution for the scenarios like quick connectivity between two remote terrestrial links, radio wave pollution prohibited areas (for e.g. hospitals and industrial facilities). However, the reliability of the link are severely affected due to adverse atmospheric conditions due to turbulence and scattering media. This article presents the 112 Gbps data links using single channel dual-polarized (DP) quadrature phase shift keying (QPSK) modulation using Reed-Solomon (RS) codes as error correcting codes for improving the reliability of FSO communication links under fog affected atmospheric conditions. The coherent detection with digital signal processing (DSP) is considered for the demodulation of above optical received signal. Bit error rate (BER), received signal power, error vector magnitude (EVM), and coding gain were used to assess the system’s performance. Based on the result outcomes, on comparing the link performance under moderate fog conditions $approx$3dB coding gain with $approx$0.1 km link improvement achieved for the target log(BER) of −3.","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":"115336509","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/CSNDSP54353.2022.9907922
T. Devaja, Milica I. Petkovic, A. Munari, Federico Clazzer, M. Beko, D. Vukobratović
In this paper, we investigate the design of a novel hybrid optical wireless communication (OWC)/radio frequency (RF) solution suitable for massive machine-type communication (mMTC). The proposed scenario consists of a massive collection of indoor OWC-based small cells that connect low-cost Internet of Things (IoT) devices to the network infrastructure via an outdoor low-power wide-area network (LP WAN), providing high scalability and connection density suitable for dense urban use cases. We assume both indoor OWC and outdoor LP WAN parts of the mMTC system use slotted ALOHA as a random access mechanism. The main contribution of this paper is in derivation of expressions for the packet loss rate, which provide insights into the considered system design as a function of the indoor OWC and outdoor LP WAN system parameters.
{"title":"Massive Machine-Type Communications via Hybrid OWC/RF Networks","authors":"T. Devaja, Milica I. Petkovic, A. Munari, Federico Clazzer, M. Beko, D. Vukobratović","doi":"10.1109/CSNDSP54353.2022.9907922","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907922","url":null,"abstract":"In this paper, we investigate the design of a novel hybrid optical wireless communication (OWC)/radio frequency (RF) solution suitable for massive machine-type communication (mMTC). The proposed scenario consists of a massive collection of indoor OWC-based small cells that connect low-cost Internet of Things (IoT) devices to the network infrastructure via an outdoor low-power wide-area network (LP WAN), providing high scalability and connection density suitable for dense urban use cases. We assume both indoor OWC and outdoor LP WAN parts of the mMTC system use slotted ALOHA as a random access mechanism. The main contribution of this paper is in derivation of expressions for the packet loss rate, which provide insights into the considered system design as a function of the indoor OWC and outdoor LP WAN system parameters.","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":"115606631","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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