2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)最新文献_第10页

ICXT Characterization in WC-MCFs and its Impact on the Performance of OOK-DD Systems wc - mcf中的ICXT表征及其对OOK-DD系统性能的影响

2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) Pub Date : 2022-07-20 DOI: 10.1109/CSNDSP54353.2022.9907898

A. Cartaxo, T. Alves, J. Rebola

引用次数: 0

Centralized Hybrid Equalization for Cell Free mMIMO mmWave based Systems 基于毫米波的无小区毫米波系统的集中混合均衡

2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) Pub Date : 2022-07-20 DOI: 10.1109/CSNDSP54353.2022.9907988

J. Kassam, D. Castanheira, A. Silva, R. Dinis, A. Gameiro

{"title":"Centralized Hybrid Equalization for Cell Free mMIMO mmWave based Systems","authors":"J. Kassam, D. Castanheira, A. Silva, R. Dinis, A. Gameiro","doi":"10.1109/CSNDSP54353.2022.9907988","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907988","url":null,"abstract":"Cell-free massive multiple input multiple output (CFmMIMO) is one of the promising technologies for beyond 5G/6G wireless communications due to its advantages in overcoming the inter-cell interferences constraints in ultra-dense networks. In this paper, we propose a low complexity analog precoder with a centralized hybrid analog-digital multi-user equalizer for millimeter-wave (mmWave) CF mMIMO systems. In the transmitter, a low complexity analog precoder is applied based on the partial channel state information (CSI) knowledge, i.e., only the average angle of departure (AoD) information. While in the centralized hybrid receiver, the central unit (CU) handles all processing that requires access to the global CSI. Herein, the analog coefficients of the equalizer are obtained by minimizing the mean square error (MSE) between the transmit and receive signals using the weighted Frobenius norm as a metric, whereas an optimum linear MSE equalizer is used to get the digital part. We also compare the considered CF scenario with the small cells (SCs) based one for different hybrid schemes. The results show that the proposed precoder combined with the hybrid equalizer can achieve very close results to a fully digital counterpart. Moreover, the performance of the considered CF scenario is better than the SCs based one for all hybrid schemes.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"413 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":"116181887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Call Admission Control under a Probabilistic Bandwidth Reservation Policy and Handover Queueing in Mobile Hotspots 基于概率带宽保留策略的呼叫接纳控制与移动热点切换排队

2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) Pub Date : 2022-07-20 DOI: 10.1109/CSNDSP54353.2022.9907974

Marinos Vlasakis, I. Keramidi, I. Moscholios, P. Sarigiannidis, M. Logothetis

{"title":"Call Admission Control under a Probabilistic Bandwidth Reservation Policy and Handover Queueing in Mobile Hotspots","authors":"Marinos Vlasakis, I. Keramidi, I. Moscholios, P. Sarigiannidis, M. Logothetis","doi":"10.1109/CSNDSP54353.2022.9907974","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907974","url":null,"abstract":"In this paper we study a mobility-aware call admission control algorithm in a mobile hotspot. More specifically, we consider a vehicle which has an access point of a fixed capacity and may alternate between stop and moving phases. In the stop phase, the vehicle services new and handover calls. To prioritize handover calls a probabilistic bandwidth reservation (BR) policy is considered where a fraction of the capacity is reserved for handover calls. Based on this policy, new calls may enter the reservation space with a predefined probability. In addition, handover calls have the option to wait in a queue of finite size if there are no available resources at the time of their arrival. In the moving phase, the vehicle services only new calls under the classical complete sharing policy. In both phases, calls arrive according to a Poisson process, require a single bandwidth unit for their acceptance in the system and have an exponentially distributed service time. To analytically determine the various performance measures such as call blocking probabilities an efficient iterative algorithm is proposed.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"325 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":"116437634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Detect Resource Related Events in a Cloud-Edge Infrastructure using Knowledge Graph Embeddings and Machine Learning 使用知识图嵌入和机器学习检测云边缘基础设施中的资源相关事件

2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) Pub Date : 2022-07-20 DOI: 10.1109/CSNDSP54353.2022.9908022

Katerina Mitropoulou, P. Kokkinos, P. Soumplis, Emmanouel A. Varvarigos

引用次数: 0

Impact of Traffic Load and Spectral Occupancy on Gaussian Noise Models Performance for Multiband Networks 业务负荷和频谱占用对多频带网络高斯噪声模型性能的影响

2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) Pub Date : 2022-07-20 DOI: 10.1109/CSNDSP54353.2022.9907947

Pedro Venda, J. Rebola, L. Cancela

引用次数: 0

UAV Energy Awareness based on Network Communication Optimization and Power Efficient Trajectories 基于网络通信优化和节能轨迹的无人机能量感知

2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) Pub Date : 2022-07-20 DOI: 10.1109/CSNDSP54353.2022.9907977

Georgios Fevgas, T. Lagkas, V. Argyriou, P. Sarigiannidis

引用次数: 1

Dual parameter simultaneous sensing of ammonia and humidity utilising dye-encapsulated extrinsic Fabry–Pérot interferometer 利用染料封装外源法布里-帕氏干涉仪对氨和湿度进行双参数同步传感

2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) Pub Date : 2022-07-20 DOI: 10.1109/CSNDSP54353.2022.9908026

Liangliang Liu, S. Korposh, S. Morgan

{"title":"Dual parameter simultaneous sensing of ammonia and humidity utilising dye-encapsulated extrinsic Fabry–Pérot interferometer","authors":"Liangliang Liu, S. Korposh, S. Morgan","doi":"10.1109/CSNDSP54353.2022.9908026","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908026","url":null,"abstract":"This work demonstrates a fiber optic sensing probe functionalized with a single-film for measuring two parameters: gaseous ammonia and humidity. The sensor is constructed with a dye (Tetraphenylporphyrin tetrasulfonic acid hydrate) encapsulated into a porous silica film dip-coated on the distal end of optical fiber forming an extrinsic Fabry–Pérot cavity. This approach combines two popular optical measurement techniques such as white light interferometry and colourimetry measurement in a single fiber and performs spectroscopic analysis of the cavity for dual sensing. Experimental results demonstrate that multiple attenuation bands appearing in the reflection spectrum consist of a mixture of dye absorption and white light interference with spatially resolved bands, allowing sensing of the two-parameter based on colourimetry shift and refractive index change, respectively. The corresponding attenuation bands shift independently in response to ammonia (range: 0–18 ppm) and humidity (0–100%) with negligible crosstalk. The sensor exhibits ~2 nm wavelength shift for 0.7 ppm of gaseous ammonia and a sensitivity of 0.4 nm/% RH for humidity measurement.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"109 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":"131761265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation on the use of Artificial Neural Network Equalizer in Indoor Visible Light Communication Systems 人工神经网络均衡器在室内可见光通信系统中的应用研究

2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) Pub Date : 2022-07-20 DOI: 10.1109/CSNDSP54353.2022.9908051

E. Ertunc, Othman Isam Younus, E. Ciaramella, Zabih Ghassemlooy

{"title":"Investigation on the use of Artificial Neural Network Equalizer in Indoor Visible Light Communication Systems","authors":"E. Ertunc, Othman Isam Younus, E. Ciaramella, Zabih Ghassemlooy","doi":"10.1109/CSNDSP54353.2022.9908051","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908051","url":null,"abstract":"In this paper, we investigate a non-line-of-sight visible light communication system with the artificial neural network (ANN)-based equalizer that uses the machine learning algorithm Levenberg-Marquardt (LM). We investigate the system performance in terms of the bit error rate for 2-, 4-, 8-, 16-, 32-of pulse amplitude modulation (PAM) scheme using an ANN-based equalizer with 4, 5, 10, 17, and 20 hidden neurons that are optimized. The signal to noise ratio (SNR) penalties are below 10 dB at a bit error rate of $10^{-4}$, which is below the 7% forward error correction limit of $3.8 times 10^{-3}$. We also compare the LM algorithm over Broyden-Fletcher-Goldfarb-Shanno) quasi-newton, resilient backpropagation, and gradient descent backpropagation. LM offers the best result with a 7 dB SNR penalty at a BER of $2times 10^{-4}$. Lastly, a 1 Mbit/s 4-PAM lin with an ANN-based equalizer with 5 hidden neurons is demonstrated over transmission distances of 1, 3, and 6 m is performed, with the lowest SNR penalty of 0.5 dB for the 1 m link.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"180 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":"131980833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep learning for BER prediction in optical connections impaired by inter-core crosstalk 基于深度学习的核间串扰光连接误码率预测

2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) Pub Date : 2022-07-20 DOI: 10.1109/CSNDSP54353.2022.9908035

Sofia Esteves, J. Rebola, Pedro Santana

{"title":"Deep learning for BER prediction in optical connections impaired by inter-core crosstalk","authors":"Sofia Esteves, J. Rebola, Pedro Santana","doi":"10.1109/CSNDSP54353.2022.9908035","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908035","url":null,"abstract":"Four-level pulse amplitude modulation (PAM4) signals transmission in short-haul intensity modulation-direct detection datacenters connections supported by homogeneous weakly-coupled multicore fibers is seen as a promising technology to meet the future challenge of providing enough bandwidth and achieve high data capacity in datacenter links. However, in multicore fibers, inter-core crosstalk (ICXT) limits significantly the performance of such short-reach connections by causing large bit error rate (BER) fluctuations. In this work, a convolutional neural network (CNN) is proposed for eye-pattern analysis and BER prediction in PAM4 inter-datacenter optical connections impaired by ICXT, with the aim of optical performance monitoring. The performance of the CNN is assessed by estimation of the root mean square error (RMSE) using a synthetic dataset created with Monte Carlo simulation. Considering PAM4 interdatacenter connections with one interfering core and for different skew-symbol rate products, extinction ratios and crosstalk levels, the obtained results show that the implemented CNN is able to predict the BER without surpassing a RMSE limit of 0.1.","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":"131198732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Object Tracking in an Indoor Scenario: Potential for Centimeter Accuracy with LiFi 室内场景中的目标跟踪:利用LiFi实现厘米级精度的潜力

2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) Pub Date : 2022-07-20 DOI: 10.1109/CSNDSP54353.2022.9908025

S. M. Kouhini, Ziyan Ma, C. Kottke, Sreelal Maravanchery Mana, R. Freund, V. Jungnickel

{"title":"Object Tracking in an Indoor Scenario: Potential for Centimeter Accuracy with LiFi","authors":"S. M. Kouhini, Ziyan Ma, C. Kottke, Sreelal Maravanchery Mana, R. Freund, V. Jungnickel","doi":"10.1109/CSNDSP54353.2022.9908025","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908025","url":null,"abstract":"Localization in indoor scenarios is difficult based on radio technologies, due to fading and the dominant multipath propagation. Optical wireless technology also denoted as LiFi, propagates mostly via the line-of-sight. Therefore, it has the potential to provide the required centimeter accuracy for indoor Internet-of-Things applications. In this paper, we consider positioning as an extra service offered by the LiFi communication system. Our vision is to detect the required location of automatic guided vehicles, intelligent transport systems, and mobile assembly units in an industrial environment, by using the same hardware also used for wireless communication. Our proposal is based on time-of-flight measurements. We reuse the physical layer from the ITU-T recommendation G.9991 for LiFi for ranging and subsequent trilateration. In this paper, we have further developed this approach towards continuous object tracking and evaluated the accuracy of the 3D position detection in an indoor environment. We observe that the results depend critically on the layout of the LiFi cell. Moreover, we demonstrate that the time-of-flight technique allows object tracking at a speed of 1 measurement / second with an average accuracy of 3 cm in each dimension. The proposed scheme is promising for future real-time implementation and has a high potential for future Internet-of-Things applications.","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":"132526349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0