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The Magic of Quantum Computing for Microwave Computer-Aided Design: A Brief Overview 量子计算在微波计算机辅助设计中的魔力:简要概述
2023 International Balkan Conference on Communications and Networking (BalkanCom) Pub Date : 2023-06-05 DOI: 10.1109/BalkanCom58402.2023.10167881
Lida Kouhalvandi, S. Ozoguz, L. Matekovits
{"title":"The Magic of Quantum Computing for Microwave Computer-Aided Design: A Brief Overview","authors":"Lida Kouhalvandi, S. Ozoguz, L. Matekovits","doi":"10.1109/BalkanCom58402.2023.10167881","DOIUrl":"https://doi.org/10.1109/BalkanCom58402.2023.10167881","url":null,"abstract":"Quantum computing has recently become an effective technology for tackling the drawbacks of microwave links where these were previously almost impossible. In that context, the quantum technology has made it possible not only to design a compact size system with improved performance but also to reduce the computational power and time. This presentation aims to provide a short overview through cases studies of the recent use of quantum computing in the design of the elements employed in the receiving section of a transceiver, such as active low-noise amplifier and passive phased-array antenna. This paper encourages the future studies in the domain of quantization effect of electromagnetic energy opening the way for other applications such as quantum communications and/or quantum radar schemes.","PeriodicalId":363999,"journal":{"name":"2023 International Balkan Conference on Communications and Networking (BalkanCom)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116004062","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
Statistical Characterization of FSO-based Airborne Backhaul Links 基于fso的机载回程链路的统计特性
2023 International Balkan Conference on Communications and Networking (BalkanCom) Pub Date : 2023-06-05 DOI: 10.1109/BalkanCom58402.2023.10167896
M. Elamassie, M. Uysal
{"title":"Statistical Characterization of FSO-based Airborne Backhaul Links","authors":"M. Elamassie, M. Uysal","doi":"10.1109/BalkanCom58402.2023.10167896","DOIUrl":"https://doi.org/10.1109/BalkanCom58402.2023.10167896","url":null,"abstract":"Backhaul solutions with large capacity and global coverage are of great importance for 6G wireless communication networks. With its ultra-large bandwidth and immunity to electromagnetic interference, free-space optical (FSO) communication has stood out as a major connectivity solution for UAV-to-UAV and UAV-to-ground links. While the performance of horizontal terrestrial FSO links is mainly limited by atmospheric-turbulence-induced fading, geometrical and atmospheric losses dominate the link budget of an airborne link between a high-altitude fixed-wing UAV and a ground station. Since the fixed-wing UAV continuously moves, the transmission distance between it and the ground station changes, causing both atmospheric and geometric losses to change, which results in the fading effect. In this paper, we statistically characterize this aggregate channel coefficient. First, we derive a probability density function for the channel coefficient; then, we obtain an expression for the instantaneous received signal-to-noise ratio (SNR). We validate our derived expressions through numerical calculations.","PeriodicalId":363999,"journal":{"name":"2023 International Balkan Conference on Communications and Networking (BalkanCom)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132199053","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
Machine Learning Operations Model Store: Optimizing Model Selection for AI as a Service 机器学习操作模型库:优化AI即服务的模型选择
2023 International Balkan Conference on Communications and Networking (BalkanCom) Pub Date : 2023-06-05 DOI: 10.1109/BalkanCom58402.2023.10167931
Gregor Cerar, Jernej Hribar
{"title":"Machine Learning Operations Model Store: Optimizing Model Selection for AI as a Service","authors":"Gregor Cerar, Jernej Hribar","doi":"10.1109/BalkanCom58402.2023.10167931","DOIUrl":"https://doi.org/10.1109/BalkanCom58402.2023.10167931","url":null,"abstract":"With the emergence of Artificial Intelligence-as-a-Service (AIaaS), end users have access to an ever-growing number of pre-trained, fine-tuned, and evaluated Machine Learning (ML) models. These models are typically stored in a model store, an online repository that is part of Machine Learning Operations (MLOps) frameworks. Unfortunately, selecting the optimal ML model from a plethora of available options is challenging. The problem becomes even more pronounced when the micro-location of the user and the dynamic aspects of the environment are taken into account. To this end, we propose a dynamic approach for selecting the most appropriate ML model using Deep Reinforcement Learning (DRL). We demonstrate its effectiveness in a specific use case of energy consumption forecasting. We validate the proposed solution using the energy consumption dataset HUE and demonstrate that it outperforms heuristic methods for model selection by over ten percent while remaining cost-effective.","PeriodicalId":363999,"journal":{"name":"2023 International Balkan Conference on Communications and Networking (BalkanCom)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126280172","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
An Overview of Digital Twin Applications on Smart Agriculture 数字孪生在智慧农业中的应用综述
2023 International Balkan Conference on Communications and Networking (BalkanCom) Pub Date : 2023-06-05 DOI: 10.1109/BalkanCom58402.2023.10167901
Manolya Atalay
{"title":"An Overview of Digital Twin Applications on Smart Agriculture","authors":"Manolya Atalay","doi":"10.1109/BalkanCom58402.2023.10167901","DOIUrl":"https://doi.org/10.1109/BalkanCom58402.2023.10167901","url":null,"abstract":"The Digital Twin concept enables the creation, implementation, testing, and optimization of complex systems by creating abstractions of physical components. Decoupling the system components allows designers to create virtual environments to test a physical system without disrupting the live system. Creating such systems is crucial in many areas that affect human life. One of these areas is agriculture systems, which are involved with food production, a fundamental human necessity. Uncontrolled agricultural activities can also have negative results. For example, excessive irrigation increases the risks of droughts and damages the ecosystem. In this work, we identify the direction of modern agricultural developments and their systematic implementation using the Digital Twin concept. Later we overview the existing mechanisms in light of our given approach.","PeriodicalId":363999,"journal":{"name":"2023 International Balkan Conference on Communications and Networking (BalkanCom)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133994326","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
Operation Altitude Optimization of Solar-Powered Rotary-Wing UAVs for FSO Backhauling 光能旋翼无人机FSO回程作业高度优化
2023 International Balkan Conference on Communications and Networking (BalkanCom) Pub Date : 2023-06-05 DOI: 10.1109/BalkanCom58402.2023.10167894
Khadijeh Ali Mahmoodi, M. Elamassie, M. Uysal
{"title":"Operation Altitude Optimization of Solar-Powered Rotary-Wing UAVs for FSO Backhauling","authors":"Khadijeh Ali Mahmoodi, M. Elamassie, M. Uysal","doi":"10.1109/BalkanCom58402.2023.10167894","DOIUrl":"https://doi.org/10.1109/BalkanCom58402.2023.10167894","url":null,"abstract":"Free space optical communication (FSO) has emerged as an alternative backhauling technology. It provides a line-of-sight (LOS) link with a capacity comparable to fiber optics and much higher than those that can be supported by radio counterparts. Rotary-wing unmanned aerial vehicles (UAVs) equipped with FSO terminals can be positioned as a complementary aerial solution to the terrestrial backhaul links in dense areas with high-peak traffic demands. In this paper, we consider a solar-powered rotary-wing UAV equipped with an FSO terminal that provides backhaul link to a ground base station in an urban area. We first quantity the energy consumption and energy harvesting of a rotary-wing solar-powered UAV. Then, we formulate an optimization problem to determine the optimal operation altitude with the goal of maximizing the net energy of UAV while satisfying the LOS requirements critical for the FSO link. Our results show that the selection of operation altitude is highly dependent on the weight of the UAV as well as the size and efficiency of the solar panel.","PeriodicalId":363999,"journal":{"name":"2023 International Balkan Conference on Communications and Networking (BalkanCom)","volume":"220 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134046525","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
Graph Neural Networks Based Anomalous RSSI Detection 基于图神经网络的RSSI异常检测
2023 International Balkan Conference on Communications and Networking (BalkanCom) Pub Date : 2023-06-05 DOI: 10.1109/BalkanCom58402.2023.10167910
Blaž Bertalanič, Matej Vnučec, C. Fortuna
{"title":"Graph Neural Networks Based Anomalous RSSI Detection","authors":"Blaž Bertalanič, Matej Vnučec, C. Fortuna","doi":"10.1109/BalkanCom58402.2023.10167910","DOIUrl":"https://doi.org/10.1109/BalkanCom58402.2023.10167910","url":null,"abstract":"In today’s world, modern infrastructures are being equipped with information and communication technologies to create large IoT networks. It is essential to monitor these networks to ensure smooth operations by detecting and correcting link failures or abnormal network behaviour proactively, which can otherwise cause interruptions in business operations. This paper presents a novel method for detecting anomalies in wireless links using graph neural networks. The proposed approach involves converting time series data into graphs and training a new graph neural network architecture based on graph attention networks that successfully detects anomalies at the level of individual measurements of the time series data. The model provides competitive results compared to the state of the art while being computationally more efficient with $approx$171 times fewer trainable parameters.","PeriodicalId":363999,"journal":{"name":"2023 International Balkan Conference on Communications and Networking (BalkanCom)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133747453","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
Digital Twin Middleware for Smart Farm IoT Networks 智能农场物联网网络的数字孪生中间件
2023 International Balkan Conference on Communications and Networking (BalkanCom) Pub Date : 2023-06-05 DOI: 10.1109/BalkanCom58402.2023.10167962
Lal Verda Çakır, T. Bilen, Mehmet Özdem, B. Canberk
{"title":"Digital Twin Middleware for Smart Farm IoT Networks","authors":"Lal Verda Çakır, T. Bilen, Mehmet Özdem, B. Canberk","doi":"10.1109/BalkanCom58402.2023.10167962","DOIUrl":"https://doi.org/10.1109/BalkanCom58402.2023.10167962","url":null,"abstract":"Change in agricultural practices is crucial for reaching the Net Zero 2050 target. For this purpose, Digital Twin (DT) technology and IoT technology started to be used. These solutions’ success relies on the performance of the communication between the IoT devices and the DT. However, the current solutions embody scalability, context awareness, and interoperability challenges. To address these, we propose YANG-powered DT Middleware. Moreover, considering the intrinsic characteristics of DT communication, we propose the DT-specific aggregation scheme. As a result, we decrease the latency and round-trip time (RTT) and lower the resource consumption in IoT devices. Moreover, context-aware communication in DT-based Farming is enabled.","PeriodicalId":363999,"journal":{"name":"2023 International Balkan Conference on Communications and Networking (BalkanCom)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133807791","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
Vector Autoregression Model Utilization for Massive-MIMO Channel Denoising 向量自回归模型在海量mimo信道去噪中的应用
2023 International Balkan Conference on Communications and Networking (BalkanCom) Pub Date : 2023-06-05 DOI: 10.1109/BalkanCom58402.2023.10167957
Dmitry Artemasov, Alexander Blagodarnyi, Alexander Sherstobitov, V. Lyashev
{"title":"Vector Autoregression Model Utilization for Massive-MIMO Channel Denoising","authors":"Dmitry Artemasov, Alexander Blagodarnyi, Alexander Sherstobitov, V. Lyashev","doi":"10.1109/BalkanCom58402.2023.10167957","DOIUrl":"https://doi.org/10.1109/BalkanCom58402.2023.10167957","url":null,"abstract":"In modern wireless communication systems Multiple-Input Multiple-Output (MIMO) technology allows to greatly increase power efficiency, serving area, and the overall cell throughput with the antenna array beamforming. MIMO systems require accurate channel state knowledge to apply correct precoding. In 5G Time Division Duplex (TDD) systems Channel State Information (CSI) is obtained via Sounding Reference Signals (SRS) transmitted by User Equipments (UEs). UEs have limited power capabilities and thus cannot achieve high uplink (UL) signal-to-noise ratio (SNR) on gNodeB (gNB) in large bandwidth. There are multiple methods that can be applied to improve the accuracy of the channel estimation (CE) in noisy conditions. In this paper the beam-delay Vector Autoregression (VAR) denoising method is proposed. The pre- and post-processing steps are described. The performance of VAR denoising is compared with the baseline approaches. The obtained results and possible improvements are discussed.","PeriodicalId":363999,"journal":{"name":"2023 International Balkan Conference on Communications and Networking (BalkanCom)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127370390","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
Issue of the effective dielectric constant for a co-planar patch antenna made with inset technique 用插入技术制作的共面贴片天线的有效介电常数问题
2023 International Balkan Conference on Communications and Networking (BalkanCom) Pub Date : 2023-06-05 DOI: 10.1109/BalkanCom58402.2023.10167927
M. Duman
{"title":"Issue of the effective dielectric constant for a co-planar patch antenna made with inset technique","authors":"M. Duman","doi":"10.1109/BalkanCom58402.2023.10167927","DOIUrl":"https://doi.org/10.1109/BalkanCom58402.2023.10167927","url":null,"abstract":"In microstrip antenna design, the effective dielectric constant value is different on the feed line or on the patch. The reason for this difference has been demonstrated theoretically and experimentally in this study. The work created in the CST program using the inset technique was carried out on fR4 substrate and measured in the laboratory with NanoVNA. As a result, the theoretical and simulation values and measurement results are consistent. The antenna can be used in the S band. Examples from the literature and the gap in the literature are given in the introduction; design equations and proof of recalculation for effective dielectric constant are shown in the theoretical calculations, the materials used and the method followed are presented in the method and materials; computer program simulations and laboratory measurements take place in the simulation and measurement section, respectively. Separate headings have been opened to indicate their importance for results, discussion, conclusion and suggestions. One can design a co-planar antenna by following this work.","PeriodicalId":363999,"journal":{"name":"2023 International Balkan Conference on Communications and Networking (BalkanCom)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129592405","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
Blockage Effects in RIS-enabled Communication 使能ris通信中的阻塞效应
2023 International Balkan Conference on Communications and Networking (BalkanCom) Pub Date : 2023-06-05 DOI: 10.1109/BalkanCom58402.2023.10167954
Fethi Okta, Ömer Faruk Akyol, S. T. Basaran
{"title":"Blockage Effects in RIS-enabled Communication","authors":"Fethi Okta, Ömer Faruk Akyol, S. T. Basaran","doi":"10.1109/BalkanCom58402.2023.10167954","DOIUrl":"https://doi.org/10.1109/BalkanCom58402.2023.10167954","url":null,"abstract":"Reconfigurable Intelligent Surfaces (RIS) are considered an important candidate to improve the performance of communication systems via controlling the propagation medium. There are number of potential scenarios for RIS-enabled systems in the non-line-of-sight communication scenarios while having blockages between transmitter and receiver. However, blockages may also occur between transmitter-RIS and RIS-receiver channels. This work proposes a realistic system model with RIS in the presence of blockages within the whole communication channels. For the considered system model, the achievable data rate is derived analytically in the environment where the blockage model follows the Poisson point process. Discrete phase shifting RIS is used in the proposed system due to the practical deployment scenarios. Thus, the effects of the number of RIS elements, coding bits number, and density of the blockages on achievable data rate are investigated. The performance of the proposed system depends heavily on the intensity of the blockages. The accuracy of the analytical results is verified via extensive simulations.","PeriodicalId":363999,"journal":{"name":"2023 International Balkan Conference on Communications and Networking (BalkanCom)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120945441","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
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