Pub Date : 2024-03-01DOI: 10.21608/fuje.2024.343808
Mohamed Ouda, Abdelrahman Mousa
Eco-empathic design is a new approach to architecture and urban planning that seeks to create built environments that are both sustainable and human-centered. This approach is based on the understanding that the built environment can have a profound impact on our brains and behavior. The research explores the potential of eco-empathic design to improve our health, well-being, and productivity. The paper argues that by incorporating natural elements into the built environment, such as plants, natural light, and views of nature, we can create environments that are more calming, relaxing, and productive. The paper also explores the challenges and opportunities of implementing eco-empathic design in different cultural and environmental contexts. The study discussed examples of eco-empathic design from different areas of the world. These examples demonstrate the potential of eco-empathic design to create built environments that are both sustainable and beneficial to human health and well-being. The paper concludes by calling for more research and adoption of eco-empathic design principles in order to create healthier, hap-pier, and more productive societies.
{"title":"Eco–Empathic Design: How the Built Environment Can Affect our Brains and Behavior","authors":"Mohamed Ouda, Abdelrahman Mousa","doi":"10.21608/fuje.2024.343808","DOIUrl":"https://doi.org/10.21608/fuje.2024.343808","url":null,"abstract":"Eco-empathic design is a new approach to architecture and urban planning that seeks to create built environments that are both sustainable and human-centered. This approach is based on the understanding that the built environment can have a profound impact on our brains and behavior. The research explores the potential of eco-empathic design to improve our health, well-being, and productivity. The paper argues that by incorporating natural elements into the built environment, such as plants, natural light, and views of nature, we can create environments that are more calming, relaxing, and productive. The paper also explores the challenges and opportunities of implementing eco-empathic design in different cultural and environmental contexts. The study discussed examples of eco-empathic design from different areas of the world. These examples demonstrate the potential of eco-empathic design to create built environments that are both sustainable and beneficial to human health and well-being. The paper concludes by calling for more research and adoption of eco-empathic design principles in order to create healthier, hap-pier, and more productive societies.","PeriodicalId":267155,"journal":{"name":"Fayoum University Journal of Engineering","volume":"558 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140282984","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 : 2024-03-01DOI: 10.21608/fuje.2024.344027
Haitham Osama, Sara Atwa, Tahani Ahmed
The concept of sustainability has gained significant attention worldwide, with a focus on finding solutions to environmental, social, and economic challenges. In the context of Egypt2030, this paper explores the importance of green energy applications in promoting sustainable development within Green Communities. These communities are designed to incorporate strategies that prioritize green buildings, integrated water systems, pedes-trian-friendly design, urban forestry, and waste management practices. The study emphasizes the significance of proper planning at the neighborhood level to ensure the long-term viability and reduced environmental impact of sustainable communities. It highlights key factors such as population density, alternative transportation systems, community agriculture programs, water reuse strategies, and green building techniques, all of which contribute to achieving sustainable development goals. Renewable energy plays a crucial role in the development of green communities. The paper emphasizes the integration of renewable energy sources and the proper selection of alternative fuels and electric vehicles to minimize greenhouse gas emissions, combat climate change, and reduce air pollution. Furthermore, it underscores the importance of selecting appropriate energy storage methods to create a balanced, emissions-free, and sustainable community. In conclusion, this manuscript underscores the significance of incorporating green energy applications into the planning and development of Green Communities in Egypt2030. By prioritizing renewable energy, sustainable neighborhood design, and efficient energy storage, these communities can contribute to a greener and more sustainable future.
{"title":"Green Energy Applications in Potential Green Communities (Egypt2030)","authors":"Haitham Osama, Sara Atwa, Tahani Ahmed","doi":"10.21608/fuje.2024.344027","DOIUrl":"https://doi.org/10.21608/fuje.2024.344027","url":null,"abstract":"The concept of sustainability has gained significant attention worldwide, with a focus on finding solutions to environmental, social, and economic challenges. In the context of Egypt2030, this paper explores the importance of green energy applications in promoting sustainable development within Green Communities. These communities are designed to incorporate strategies that prioritize green buildings, integrated water systems, pedes-trian-friendly design, urban forestry, and waste management practices. The study emphasizes the significance of proper planning at the neighborhood level to ensure the long-term viability and reduced environmental impact of sustainable communities. It highlights key factors such as population density, alternative transportation systems, community agriculture programs, water reuse strategies, and green building techniques, all of which contribute to achieving sustainable development goals. Renewable energy plays a crucial role in the development of green communities. The paper emphasizes the integration of renewable energy sources and the proper selection of alternative fuels and electric vehicles to minimize greenhouse gas emissions, combat climate change, and reduce air pollution. Furthermore, it underscores the importance of selecting appropriate energy storage methods to create a balanced, emissions-free, and sustainable community. In conclusion, this manuscript underscores the significance of incorporating green energy applications into the planning and development of Green Communities in Egypt2030. By prioritizing renewable energy, sustainable neighborhood design, and efficient energy storage, these communities can contribute to a greener and more sustainable future.","PeriodicalId":267155,"journal":{"name":"Fayoum University Journal of Engineering","volume":"19 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140268639","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 : 2024-03-01DOI: 10.21608/fuje.2024.344035
Ashraf Talaat, Ahmed Abd Elkarim, Tarek Selouma
Controlling amounts of reinforcing re-bar during construction project phases enables contractors to reduce total direct cost of R.C. leading to final competitive prices. In this study a computer software RCD-2 , using Auto-Lisp Language as a support to Auto-Cad software, is designed to help both designers and contractors to automatically produce design and fabrication drawings and bending lists for reinforced concrete sub-systems. The economic implications of using such system is to reduce engineering hours since fabrication drawings are executed automatically leading to savings in both time and cost. An optimization strategy has been developed to help engineers to improve the over all steel bars utilization using the previously produced drawings and bending lists. The optimization process is executed through using several optimization cycles until a minimum amount of used steel bars is reached. A case study of a typical seven stories R.C building with raft foundation is presented. Design and fabrication drawings and re-inforcing re-bar bending lists of foundation, columns and slabs (flat slabs) sub-systems were automatically produced. Original re-bars utilization ratio was found to be 88.25%. Optimization cycles were performed for several design alternatives. For each alternative, same types of drawings and bending lists were produced. The optimization procedure suggested in the study was applied and utilization ratio was improved to 95.75% resulting a reduction of total steel amount by 8.5%. It is concluded that the proposed technique is an effective and efficient tool for practicing engineers and contractors to reduce R.C.
{"title":"Optimizing Reinforcing Re-Bar for Multi-Story Buildings Using Automated Bending Lists","authors":"Ashraf Talaat, Ahmed Abd Elkarim, Tarek Selouma","doi":"10.21608/fuje.2024.344035","DOIUrl":"https://doi.org/10.21608/fuje.2024.344035","url":null,"abstract":"Controlling amounts of reinforcing re-bar during construction project phases enables contractors to reduce total direct cost of R.C. leading to final competitive prices. In this study a computer software RCD-2 , using Auto-Lisp Language as a support to Auto-Cad software, is designed to help both designers and contractors to automatically produce design and fabrication drawings and bending lists for reinforced concrete sub-systems. The economic implications of using such system is to reduce engineering hours since fabrication drawings are executed automatically leading to savings in both time and cost. An optimization strategy has been developed to help engineers to improve the over all steel bars utilization using the previously produced drawings and bending lists. The optimization process is executed through using several optimization cycles until a minimum amount of used steel bars is reached. A case study of a typical seven stories R.C building with raft foundation is presented. Design and fabrication drawings and re-inforcing re-bar bending lists of foundation, columns and slabs (flat slabs) sub-systems were automatically produced. Original re-bars utilization ratio was found to be 88.25%. Optimization cycles were performed for several design alternatives. For each alternative, same types of drawings and bending lists were produced. The optimization procedure suggested in the study was applied and utilization ratio was improved to 95.75% resulting a reduction of total steel amount by 8.5%. It is concluded that the proposed technique is an effective and efficient tool for practicing engineers and contractors to reduce R.C.","PeriodicalId":267155,"journal":{"name":"Fayoum University Journal of Engineering","volume":"171 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140278561","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 : 2024-03-01DOI: 10.21608/fuje.2024.343764
Mahmoud Moussa, Atef Salama
This research exploits digital techniques to test analog circuits. A novel test methodology and an optimization algorithm to generate the stimulus have been developed. The aim is to detect as many manufacturing defects as possible, which might occur during the production process of mixed-signal systems . The test stimulus is a discrete-interval binary sequence identified by the optimization algorithm. Response from the analog circuit under test (CUT) is digitized with one-bit resolution by a comparator. Digitized responses from the actual circuit and from fault-free simulation are compared for fault recognition. A figure-of-merit, to measure the ability of a specified binary sequence to detect all possible faults, is defined. Input sequences with good performance will generally be too long to permit exhaustive search of all candidates. Instead, iterative optimization is employed. An optimum sequence has been discovered when no further modification can improve the figure-of-merit. This process of optimization is performed with computer-based simulation of the circuit under test. Consequently , faults and tolerances can be introduced as required and all aspects of behavior can be modelled under controlled conditions. The digitized response of the optimum sequence is stored to be used in actual test application . The methodology has been validated using analog filter. All catastrophic and parametric (deviations of component values from nominal by more than six times the normal tolerances) failures can be detected, with detection probability greater than 98%. Benefits of the methodology include ease of introducing binary signals to analog subsystems and reduction of the hardware required for both stimulus generation and response processing.
{"title":"Digital Testing of Analog Circuits","authors":"Mahmoud Moussa, Atef Salama","doi":"10.21608/fuje.2024.343764","DOIUrl":"https://doi.org/10.21608/fuje.2024.343764","url":null,"abstract":"This research exploits digital techniques to test analog circuits. A novel test methodology and an optimization algorithm to generate the stimulus have been developed. The aim is to detect as many manufacturing defects as possible, which might occur during the production process of mixed-signal systems . The test stimulus is a discrete-interval binary sequence identified by the optimization algorithm. Response from the analog circuit under test (CUT) is digitized with one-bit resolution by a comparator. Digitized responses from the actual circuit and from fault-free simulation are compared for fault recognition. A figure-of-merit, to measure the ability of a specified binary sequence to detect all possible faults, is defined. Input sequences with good performance will generally be too long to permit exhaustive search of all candidates. Instead, iterative optimization is employed. An optimum sequence has been discovered when no further modification can improve the figure-of-merit. This process of optimization is performed with computer-based simulation of the circuit under test. Consequently , faults and tolerances can be introduced as required and all aspects of behavior can be modelled under controlled conditions. The digitized response of the optimum sequence is stored to be used in actual test application . The methodology has been validated using analog filter. All catastrophic and parametric (deviations of component values from nominal by more than six times the normal tolerances) failures can be detected, with detection probability greater than 98%. Benefits of the methodology include ease of introducing binary signals to analog subsystems and reduction of the hardware required for both stimulus generation and response processing.","PeriodicalId":267155,"journal":{"name":"Fayoum University Journal of Engineering","volume":"119 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140278806","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 : 2024-03-01DOI: 10.21608/fuje.2024.344952
Mohammed El-Alem, Ahmed Abdel-Latif
The ( 300 MW th ) pool type Advanced Lead-cooled Fast Reactor European Demon-strator (ALFRED) is an essential step in the evolution of the LFR technology developed to demonstrate the viability of the European Lead Fast Reactor (ELFR) of Generation-IV for use in the future commercial power plant. The ALFRED core consists of two radial zones, inner zone (IZ) and outer zone (OZ), with closed hexagonal Fuel Assemblies (FAs). The fuel is composed of MOX pellets with different fissile pluto-nium enrichment for inner and outer zones. Using MCNPX transport code, 3D model of ALFRED core has been designed to study the MOX fuel performance analysis of the ALFRED core and to simulate its operation during a fuel cycle of a duration of 1825 effective full power days. The obtained results show good agreement with previous studies and confirm the capability of the reactor ALFRED to achieve sustainability.
300 兆瓦池式先进铅冷快堆欧洲演示器（ALFRED）是铅冷快堆技术发展的重要一步，该技术旨在演示第四代欧洲铅冷快堆用于未来商业电厂的可行性。ALFRED 堆芯由两个径向区组成，即内区（IZ）和外区（OZ），并配有封闭的六边形燃料组件（FA）。燃料由 MOX 粒子组成，内区和外区的裂变钚铌富集程度不同。利用 MCNPX 传输代码，设计了 ALFRED 堆芯的三维模型，以研究 ALFRED 堆芯的 MOX 燃料性能分析，并模拟其在 1825 个有效满功率日的燃料循环期间的运行情况。所获得的结果与之前的研究结果非常吻合，并证实了 ALFRED 反应堆实现可持续性的能力。
{"title":"The MOX Fuel Performance Analysis of ALFRED Core Using MCNPX Transport Code","authors":"Mohammed El-Alem, Ahmed Abdel-Latif","doi":"10.21608/fuje.2024.344952","DOIUrl":"https://doi.org/10.21608/fuje.2024.344952","url":null,"abstract":"The ( 300 MW th ) pool type Advanced Lead-cooled Fast Reactor European Demon-strator (ALFRED) is an essential step in the evolution of the LFR technology developed to demonstrate the viability of the European Lead Fast Reactor (ELFR) of Generation-IV for use in the future commercial power plant. The ALFRED core consists of two radial zones, inner zone (IZ) and outer zone (OZ), with closed hexagonal Fuel Assemblies (FAs). The fuel is composed of MOX pellets with different fissile pluto-nium enrichment for inner and outer zones. Using MCNPX transport code, 3D model of ALFRED core has been designed to study the MOX fuel performance analysis of the ALFRED core and to simulate its operation during a fuel cycle of a duration of 1825 effective full power days. The obtained results show good agreement with previous studies and confirm the capability of the reactor ALFRED to achieve sustainability.","PeriodicalId":267155,"journal":{"name":"Fayoum University Journal of Engineering","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140269681","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 : 2024-03-01DOI: 10.21608/fuje.2024.343804
Tamer Elkhodragy, Sayed Osama, Mahmoud El Bahy
{"title":"Optimization of Fault Diagnosis of Electrical Motors Using Adaptive Control Based on IOT Monitoring System","authors":"Tamer Elkhodragy, Sayed Osama, Mahmoud El Bahy","doi":"10.21608/fuje.2024.343804","DOIUrl":"https://doi.org/10.21608/fuje.2024.343804","url":null,"abstract":"","PeriodicalId":267155,"journal":{"name":"Fayoum University Journal of Engineering","volume":"281 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140283338","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 : 2024-03-01DOI: 10.21608/fuje.2024.343760
Eslam Abd‐El‐Nabi, Fayza Zahran, Tarek Selouma
Reinforced concrete (RC) columns are the backbone of RC buildings, essential for supporting the structure's weight. If an RC column is not designed to carry the expected live loads, it may be necessary to strengthen it. One of the most effective methods for strengthening RC columns is steel jackets. This research conducted a numerical investigation of the effect of strengthening RC columns with a steel jacket on the axial load capacity. The steel jacket consisting of two C-channels connected with various numbers of welded batten plates was adopted. The finite element (FE) analysis of 7 columns was conducted using Abaqus/CAE software. All the columns have a cross-section of 300 x 300 mm with a 2500 mm height and are reinforced with four longitudinal bars of 16 mm diameter with five stirrups per meter of 8 mm diameter. The strengthened columns were divided into two groups. The first group consisted of four strengthened columns; the two C-channels connected with 2, 3, 5, and 7 batten plates from both sides. The second group consisted of two strengthened columns; the two C-channels connected with one large plate. The results showed that using two C-channels as a steel jacket is very effective as a relatively rigid jacket can increase the failure load of the columns by a minimum value of 21.46 %. Also, the more batten plates connecting the two C-channels steel jackets, the more confinement of the column and, hence, the more the column failure load increases. Moreover, connecting the two C-channels steel jacket by a single large plate to form a complete box around the column gives the best confinement and could increase the failure of the column by 75.92 %.
钢筋混凝土 (RC) 柱是 RC 建筑的支柱，对支撑结构重量至关重要。如果钢筋混凝土柱的设计不能承受预期的活载荷，就有必要对其进行加固。钢护筒是加固 RC 柱最有效的方法之一。本研究对用钢套加固 RC 柱对轴向承载能力的影响进行了数值研究。钢套由两根 C 型槽钢和不同数量的焊接条板连接而成。使用 Abaqus/CAE 软件对 7 根支柱进行了有限元（FE）分析。所有支柱的横截面均为 300 x 300 毫米，高度为 2500 毫米，并用四根直径为 16 毫米的纵向钢筋和每米五根直径为 8 毫米的箍筋进行加固。加固后的支柱分为两组。第一组由四根加固柱组成；两根 C 型槽钢的两侧分别连接有 2、3、5 和 7 块压缝板。第二组包括两根加固柱；两根 C 型槽与一块大板相连。结果表明，使用两根 C 型槽钢作为钢套非常有效，因为相对较硬的钢套可将柱子的破坏荷载最小值提高 21.46%。此外，连接两个 C 型槽钢夹层的压缝板越多，柱子的约束就越大，因此柱子的破坏荷载也就越大。此外，用一块大板连接两个 C 型槽钢护套，在柱子周围形成一个完整的箱体，可获得最佳密闭效果，可使柱子的破坏荷载增加 75.92%。
{"title":"Numerical Analysis of Reinforced Concrete Columns Strengthened With Steel Jacket","authors":"Eslam Abd‐El‐Nabi, Fayza Zahran, Tarek Selouma","doi":"10.21608/fuje.2024.343760","DOIUrl":"https://doi.org/10.21608/fuje.2024.343760","url":null,"abstract":"Reinforced concrete (RC) columns are the backbone of RC buildings, essential for supporting the structure's weight. If an RC column is not designed to carry the expected live loads, it may be necessary to strengthen it. One of the most effective methods for strengthening RC columns is steel jackets. This research conducted a numerical investigation of the effect of strengthening RC columns with a steel jacket on the axial load capacity. The steel jacket consisting of two C-channels connected with various numbers of welded batten plates was adopted. The finite element (FE) analysis of 7 columns was conducted using Abaqus/CAE software. All the columns have a cross-section of 300 x 300 mm with a 2500 mm height and are reinforced with four longitudinal bars of 16 mm diameter with five stirrups per meter of 8 mm diameter. The strengthened columns were divided into two groups. The first group consisted of four strengthened columns; the two C-channels connected with 2, 3, 5, and 7 batten plates from both sides. The second group consisted of two strengthened columns; the two C-channels connected with one large plate. The results showed that using two C-channels as a steel jacket is very effective as a relatively rigid jacket can increase the failure load of the columns by a minimum value of 21.46 %. Also, the more batten plates connecting the two C-channels steel jackets, the more confinement of the column and, hence, the more the column failure load increases. Moreover, connecting the two C-channels steel jacket by a single large plate to form a complete box around the column gives the best confinement and could increase the failure of the column by 75.92 %.","PeriodicalId":267155,"journal":{"name":"Fayoum University Journal of Engineering","volume":"264 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140275168","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 : 2024-03-01DOI: 10.21608/fuje.2024.344047
Ahmed Atteya, Ashraf Talaat
{"title":"Estimating the Noise Levels Generated by Road Traffic in Egypt","authors":"Ahmed Atteya, Ashraf Talaat","doi":"10.21608/fuje.2024.344047","DOIUrl":"https://doi.org/10.21608/fuje.2024.344047","url":null,"abstract":"","PeriodicalId":267155,"journal":{"name":"Fayoum University Journal of Engineering","volume":"100 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140278297","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 : 2024-03-01DOI: 10.21608/fuje.2024.343765
Aya Fathy, Aya Osama, Gehad Reda, Nora Ali
The third-generation partnership architecture specifies Long Term Evolution to give high data speeds of up to 100 Mbit/s and 50 Mbit/s for downlink and uplink transmission, respectively. It can be employed in a variety of bandwidth bands from 1.4 MHz to 20 MHz .The Vienna LTE simulator was used to examine the performance of homogeneous and heterogeneous networks by changing the various physical parameters. There are several distinct qualities that are employed, including through-put, spectrum efficiency, and fairness index. The scheduling mechanism is the process of allocating resources (time and frequency) to users who are simultaneously transmitting different streams. Several scheduling strategies, such as Round Robin, Proportional Fair, and Best CQI, are being looked into. Fractional Frequency Reuse (FFR) is also used to improve performance and reduce edge user disruption. Additionally, eNodeB and femtocells are included in the heterogeneous network, which is easily compared to the homogeneous network.
{"title":"Performance Evaluation of Scheduling Algorithms of LTE and LTE-A Mobile Networks using Vienna Simulator","authors":"Aya Fathy, Aya Osama, Gehad Reda, Nora Ali","doi":"10.21608/fuje.2024.343765","DOIUrl":"https://doi.org/10.21608/fuje.2024.343765","url":null,"abstract":"The third-generation partnership architecture specifies Long Term Evolution to give high data speeds of up to 100 Mbit/s and 50 Mbit/s for downlink and uplink transmission, respectively. It can be employed in a variety of bandwidth bands from 1.4 MHz to 20 MHz .The Vienna LTE simulator was used to examine the performance of homogeneous and heterogeneous networks by changing the various physical parameters. There are several distinct qualities that are employed, including through-put, spectrum efficiency, and fairness index. The scheduling mechanism is the process of allocating resources (time and frequency) to users who are simultaneously transmitting different streams. Several scheduling strategies, such as Round Robin, Proportional Fair, and Best CQI, are being looked into. Fractional Frequency Reuse (FFR) is also used to improve performance and reduce edge user disruption. Additionally, eNodeB and femtocells are included in the heterogeneous network, which is easily compared to the homogeneous network.","PeriodicalId":267155,"journal":{"name":"Fayoum University Journal of Engineering","volume":"34 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140269580","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 : 2024-03-01DOI: 10.21608/fuje.2024.343800
Eman Elbehiry, Heba TagElDien, Ahmed Fares, Basem ElHalawany
The fast growth of communication technology has resulted from the desire for information globalization. Satellite communication systems, which have the benefits of extensive coverage and minimal requirements on the geographical environment as compared to terrestrial communication systems, are progressively becoming the principal competitive arena of next-generation communication. The low-orbit (LEO) communication satellite has a high data transmission rate, a short communication latency, and a near proximity to the earth. The conventional geostationary orbit communication market has worsened as a result of the fast expansion of terrestrial communication technology and Internet technology, and the development of low-orbit satellite communication has become a general trend. Satellites with the same tasks are getting smaller and smaller, and the cost is getting lower and cheaper, thanks to the rapid growth of the integrated circuit industry. Furthermore, the new technology represented by the reusable rocket can cut the cost of launching a LEO satellite even further, making the development of a LEO communication satellite network more affordable and viable. In comparison to the terrestrial communication network, the LEO satellite network can provide communication services that span the whole globe and can support communication in distant places, moun-tainous areas, and maritime areas at a reduced cost. At the same time, the LEO satellite network differs significantly from the terrestrial network in several ways. This research is a survey paper that focuses on routing protocols algorithms for LEO constellations networks, to the best of our knowledge.
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