Pub Date : 2021-04-08DOI: 10.1109/APWiMob51111.2021.9435280
Isaac Anugerah Siahaan, Giva Andriana Mutiara, Muhammad Ikhsan Sani
Water is an important aspect that required by humans every day. The water quality is very essential on human's health. Nowadays, with the pollution that is affecting the water conditions, the quality of water consumed by humans need to be maintained. However, not every household have a dedicated system to monitor daily water quality. This paper proposed an alternative idea for utilizing several light sensors i.e. Light Dependent Resistor (LDR) and photodiode for detecting water quality especially its turbidity. This idea is proposed as an alternative solution to turbidity sensor and to have an affordable water quality monitoring system. Moreover, the sensor data is stored in a database on the Internet of Things cloud server and can be accessed by the Android- based application remotely. Based on the results, the system has successfully detected the water turbidity based on Nephelometric Turbidity Unit (NTU) scale. and the average sensor database update rate is about 16 seconds.
{"title":"A Low-Cost Water Quality Monitoring Based on Photodiode and LDR","authors":"Isaac Anugerah Siahaan, Giva Andriana Mutiara, Muhammad Ikhsan Sani","doi":"10.1109/APWiMob51111.2021.9435280","DOIUrl":"https://doi.org/10.1109/APWiMob51111.2021.9435280","url":null,"abstract":"Water is an important aspect that required by humans every day. The water quality is very essential on human's health. Nowadays, with the pollution that is affecting the water conditions, the quality of water consumed by humans need to be maintained. However, not every household have a dedicated system to monitor daily water quality. This paper proposed an alternative idea for utilizing several light sensors i.e. Light Dependent Resistor (LDR) and photodiode for detecting water quality especially its turbidity. This idea is proposed as an alternative solution to turbidity sensor and to have an affordable water quality monitoring system. Moreover, the sensor data is stored in a database on the Internet of Things cloud server and can be accessed by the Android- based application remotely. Based on the results, the system has successfully detected the water turbidity based on Nephelometric Turbidity Unit (NTU) scale. and the average sensor database update rate is about 16 seconds.","PeriodicalId":325270,"journal":{"name":"2021 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124229018","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 : 2021-04-08DOI: 10.1109/APWiMob51111.2021.9435211
A. Alquhali, A. Alhammadi, M. Roslee, M. Y. Alias, Fareha Nizam
Fifth-generation (5G) technology plays an essential role in proximate devices that provide a technology where the proximate devices communicate without assisting a base station. Device-to-device (D2D) and vehicle-to-vehicle (V2V) communications are emerging technology used to improve throughput and latency further. D2D communication is considered the most promising technology that utilizes existing cellular frequency bands. This technology plays a vital role in next-generation wireless technology due to its reliability, low-latency, and high-capacity communications. This paper analyzes and investigates the D2D communication based on underlay licensed spectrum in a lower 5G band using a single-cell scenario. This work also provides insights into spectral efficiency improvement based on spectrum sharing between cellular user equipment (CUE) and D2D UE. Simulation results show that the D2D pairs significantly improve the spectrum efficiency through CUEs by increasing the overall sum rate of the cellular network.
{"title":"Performance Evaluation of D2D Communications for Next Generation Cellular Networks","authors":"A. Alquhali, A. Alhammadi, M. Roslee, M. Y. Alias, Fareha Nizam","doi":"10.1109/APWiMob51111.2021.9435211","DOIUrl":"https://doi.org/10.1109/APWiMob51111.2021.9435211","url":null,"abstract":"Fifth-generation (5G) technology plays an essential role in proximate devices that provide a technology where the proximate devices communicate without assisting a base station. Device-to-device (D2D) and vehicle-to-vehicle (V2V) communications are emerging technology used to improve throughput and latency further. D2D communication is considered the most promising technology that utilizes existing cellular frequency bands. This technology plays a vital role in next-generation wireless technology due to its reliability, low-latency, and high-capacity communications. This paper analyzes and investigates the D2D communication based on underlay licensed spectrum in a lower 5G band using a single-cell scenario. This work also provides insights into spectral efficiency improvement based on spectrum sharing between cellular user equipment (CUE) and D2D UE. Simulation results show that the D2D pairs significantly improve the spectrum efficiency through CUEs by increasing the overall sum rate of the cellular network.","PeriodicalId":325270,"journal":{"name":"2021 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132102420","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 : 2021-04-08DOI: 10.1109/APWiMob51111.2021.9435261
K. R. Sungkono, A. Ahmadiyah, R. Sarno, M. Haykal, Muhammad Rayhan Hakim, Bagas Juwono Priambodo, Muhammad Amir Fauzan, Muhammad Kiantaqwa Farhan
A process model based on animal-based ingredients' running procurement will help halal level examiners check halal implementation based on Halal Critical Control Points (HCCP). Process discovery is a study for automatically forming a process model based on a log of running processes. There are several algorithms of process discovery, such as Alpha++ and Alpha#. However, the procurement of animal-based ingredient processes has an invisible non-prime task that has not been discussed in the existing algorithms. This research proposes a graph-based process discovery algorithm to form a process model containing invisible non-prime tasks based on the procurement processes. The log of procurement processes is obtained by using a business process management application, i.e., ProcessMaker. This research evaluates the proposed graph-based algorithm by comparing it with Alpha++ and Alpha# based on fitness and precision. The evaluation verifies that the proposed graph-based algorithm has a better quality of the obtained process model than Alpha++ and Alpha#. The fitness and precision of the graph-based algorithm are 1 and 1. On the other hand, the precisions of Alpha++ and Alpha# are 0.43 and 0.43, respectively.
{"title":"Graph-based Process Discovery containing Invisible Non-Prime Task in Procurement of Animal-Based Ingredient of Halal Restaurants","authors":"K. R. Sungkono, A. Ahmadiyah, R. Sarno, M. Haykal, Muhammad Rayhan Hakim, Bagas Juwono Priambodo, Muhammad Amir Fauzan, Muhammad Kiantaqwa Farhan","doi":"10.1109/APWiMob51111.2021.9435261","DOIUrl":"https://doi.org/10.1109/APWiMob51111.2021.9435261","url":null,"abstract":"A process model based on animal-based ingredients' running procurement will help halal level examiners check halal implementation based on Halal Critical Control Points (HCCP). Process discovery is a study for automatically forming a process model based on a log of running processes. There are several algorithms of process discovery, such as Alpha++ and Alpha#. However, the procurement of animal-based ingredient processes has an invisible non-prime task that has not been discussed in the existing algorithms. This research proposes a graph-based process discovery algorithm to form a process model containing invisible non-prime tasks based on the procurement processes. The log of procurement processes is obtained by using a business process management application, i.e., ProcessMaker. This research evaluates the proposed graph-based algorithm by comparing it with Alpha++ and Alpha# based on fitness and precision. The evaluation verifies that the proposed graph-based algorithm has a better quality of the obtained process model than Alpha++ and Alpha#. The fitness and precision of the graph-based algorithm are 1 and 1. On the other hand, the precisions of Alpha++ and Alpha# are 0.43 and 0.43, respectively.","PeriodicalId":325270,"journal":{"name":"2021 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)","volume":"78 1-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134229782","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 : 2021-04-08DOI: 10.1109/APWiMob51111.2021.9435230
Nomarhinta Solihah, M. I. Nashiruddin, M. Nugraha
The mobile communication network has developed rapidly, especially in this era where 5G exists. The 5G and other services are mandatory, supported by a large mobile backhaul capacity. 10-Gigabit-capable symmetric passive optical network (XGS-PON) has the potential to resolve this issue because it can deliver 10 Gbps upstream and downstream simultaneously. This study evaluates the XGS-PON's performance to implement mobile backhaul in a cellular network in Indonesia. This paper proposes a method for ONT testing that is implemented for mobile backhaul. This test method supports the evaluation of device performance in the physical layer and data link layer. The testing results confirmed that XGS-PON ONT supported mobile backhaul with a nominal rate of 9.65296 Gbps, an operating wavelength of 1269.509 nm, launch power 5.63 dBm, sensitivity −26.64 dBm, and overload −5.92 dBm. The functionality test shows that the XGS-PON ONT supports jumbo frames of 2000–9000 bytes, 4096 VLAN IDs, forward VLAN tagging, and un-tagging transparently passes the desired tagging VLANs. The IEEE 1588v2 synchronization test results show that time Synch Accuracy is 53 ns, and sync-e is 0.058 ppb for frequency offset. In conclusion, all test results have complied with ITU-T G.9807, IEEE 802.1q, and Broadband Forum technical reports except for sensitivity results that have not met the specification value of −28 dBm. This research has the potential to be recapitulated on the sensitivity parameter to achieve the specification value.
{"title":"Performance Evaluation of XGS-PON Optical Network Termination for Mobile Backhaul","authors":"Nomarhinta Solihah, M. I. Nashiruddin, M. Nugraha","doi":"10.1109/APWiMob51111.2021.9435230","DOIUrl":"https://doi.org/10.1109/APWiMob51111.2021.9435230","url":null,"abstract":"The mobile communication network has developed rapidly, especially in this era where 5G exists. The 5G and other services are mandatory, supported by a large mobile backhaul capacity. 10-Gigabit-capable symmetric passive optical network (XGS-PON) has the potential to resolve this issue because it can deliver 10 Gbps upstream and downstream simultaneously. This study evaluates the XGS-PON's performance to implement mobile backhaul in a cellular network in Indonesia. This paper proposes a method for ONT testing that is implemented for mobile backhaul. This test method supports the evaluation of device performance in the physical layer and data link layer. The testing results confirmed that XGS-PON ONT supported mobile backhaul with a nominal rate of 9.65296 Gbps, an operating wavelength of 1269.509 nm, launch power 5.63 dBm, sensitivity −26.64 dBm, and overload −5.92 dBm. The functionality test shows that the XGS-PON ONT supports jumbo frames of 2000–9000 bytes, 4096 VLAN IDs, forward VLAN tagging, and un-tagging transparently passes the desired tagging VLANs. The IEEE 1588v2 synchronization test results show that time Synch Accuracy is 53 ns, and sync-e is 0.058 ppb for frequency offset. In conclusion, all test results have complied with ITU-T G.9807, IEEE 802.1q, and Broadband Forum technical reports except for sensitivity results that have not met the specification value of −28 dBm. This research has the potential to be recapitulated on the sensitivity parameter to achieve the specification value.","PeriodicalId":325270,"journal":{"name":"2021 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114727378","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 : 2021-04-08DOI: 10.1109/APWiMob51111.2021.9435275
A. Ahmadiyah, Indira Nursyamsina Hazimi, Dicky Maulana Rozi, Rizky Andre Wibisono, Donny Fitrado, M. A. Rifqi, R. Sarno, K. R. Sungkono
As the halal lifestyle spreads rapidly in the culinary field, a good halal SOP in the kitchen is crucially needed because there are issues such as ingredient usage in the cooking process, cooking utensils, and storage. In Indonesia, the SOP should comply with Halal Assurance System (HAS) 23000. In generating the business process model, the existing Alpha-based algorithms work best in detecting certain tasks but fail to detect the invisible non-prime task. This paper aims to apply a graph-based algorithm to address the Alpha-based algorithm's weakness to produce a good SOP in the halal restaurant kitchen. We used event logs of the cooking process and facility treatment as the input of process model discovery. The fitness and precision results confirmed that the proposed algorithm outperforms the existing Alpha-based algorithms.
{"title":"Business Processes Discovery in Halal Restaurant Kitchen Using Graph-Based Algorithm","authors":"A. Ahmadiyah, Indira Nursyamsina Hazimi, Dicky Maulana Rozi, Rizky Andre Wibisono, Donny Fitrado, M. A. Rifqi, R. Sarno, K. R. Sungkono","doi":"10.1109/APWiMob51111.2021.9435275","DOIUrl":"https://doi.org/10.1109/APWiMob51111.2021.9435275","url":null,"abstract":"As the halal lifestyle spreads rapidly in the culinary field, a good halal SOP in the kitchen is crucially needed because there are issues such as ingredient usage in the cooking process, cooking utensils, and storage. In Indonesia, the SOP should comply with Halal Assurance System (HAS) 23000. In generating the business process model, the existing Alpha-based algorithms work best in detecting certain tasks but fail to detect the invisible non-prime task. This paper aims to apply a graph-based algorithm to address the Alpha-based algorithm's weakness to produce a good SOP in the halal restaurant kitchen. We used event logs of the cooking process and facility treatment as the input of process model discovery. The fitness and precision results confirmed that the proposed algorithm outperforms the existing Alpha-based algorithms.","PeriodicalId":325270,"journal":{"name":"2021 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126079054","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 : 2021-04-08DOI: 10.1109/APWiMob51111.2021.9435266
Y. Raza, M. Yousaf, Naeem Abbas, Adeel Akram, Y. Amin
This paper presents a compact-sized rectangular slotted patch antenna which operates over Industrial, Scientific, and Medical (ISM) (2.40-2.48 GHz) band. This implantable antenna is fed by coaxial feed of $mathbf{50} Omega$. It is kept in phantom skin tissue of dimensions $mathbf{50x50x50} mm^{3}$. Simulation of this antenna is carried out through the High Frequency Structure Simulator (HFSS). By employing the shorting pin and open-ended slots; the proposed antenna has obtained an effective size reduction at a fixed frequency operation. As a result, the obtained peak gain is −14 dB and bandwidth is 290 MHz. The results show that the proposed antenna has effective size reduction, excellent performance, and Bandwidth due to which the antenna is used in Biotelemetry application.
{"title":"A High Gain Low-profile Implantable Antenna for Medical Applications","authors":"Y. Raza, M. Yousaf, Naeem Abbas, Adeel Akram, Y. Amin","doi":"10.1109/APWiMob51111.2021.9435266","DOIUrl":"https://doi.org/10.1109/APWiMob51111.2021.9435266","url":null,"abstract":"This paper presents a compact-sized rectangular slotted patch antenna which operates over Industrial, Scientific, and Medical (ISM) (2.40-2.48 GHz) band. This implantable antenna is fed by coaxial feed of $mathbf{50} Omega$. It is kept in phantom skin tissue of dimensions $mathbf{50x50x50} mm^{3}$. Simulation of this antenna is carried out through the High Frequency Structure Simulator (HFSS). By employing the shorting pin and open-ended slots; the proposed antenna has obtained an effective size reduction at a fixed frequency operation. As a result, the obtained peak gain is −14 dB and bandwidth is 290 MHz. The results show that the proposed antenna has effective size reduction, excellent performance, and Bandwidth due to which the antenna is used in Biotelemetry application.","PeriodicalId":325270,"journal":{"name":"2021 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129828752","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 : 2021-04-08DOI: 10.1109/APWiMob51111.2021.9435237
Syeda Wafa Zehra, M. Zahid, Y. Amin
A novel compact 2 element MIMO micro-strip patch antenna for UWB applications is presented in this paper, designed in CST Microwave Studio. The geometry is symmetrical having a dimension of $mathbf{25}times mathbf{40}times mathbf{1} pmb{mm}^{mathbf{3}}$ with FR-4 dielectric material used as substrate. It is composed of two round shaped radiators with four slots making hexagonal shape and one plus-shaped slot, fed by a micro-strip feed line with $mathbf{50} Omega$ impedance. The analysis of a design shows that the achieved $pmb{S}_{mathbf{11}}$ and $pmb{S}_{mathbf{12}} < -mathbf{10 dB}$ from 3.39 GHz to 9.1 GHz reflecting UWB characteristics. The diversity performance for the MIMO antenna has also been studied with the envelope correlation coefficient, which is less than 0.003 and the diversity gain is ~10dB. The observed realized gain is $>mathbf{2.5 dBi}$ and the simulated total efficiency of the system is approximately 93%.
{"title":"A Compact 2 Element MIMO Antenna for UWB Applications","authors":"Syeda Wafa Zehra, M. Zahid, Y. Amin","doi":"10.1109/APWiMob51111.2021.9435237","DOIUrl":"https://doi.org/10.1109/APWiMob51111.2021.9435237","url":null,"abstract":"A novel compact 2 element MIMO micro-strip patch antenna for UWB applications is presented in this paper, designed in CST Microwave Studio. The geometry is symmetrical having a dimension of $mathbf{25}times mathbf{40}times mathbf{1} pmb{mm}^{mathbf{3}}$ with FR-4 dielectric material used as substrate. It is composed of two round shaped radiators with four slots making hexagonal shape and one plus-shaped slot, fed by a micro-strip feed line with $mathbf{50} Omega$ impedance. The analysis of a design shows that the achieved $pmb{S}_{mathbf{11}}$ and $pmb{S}_{mathbf{12}} < -mathbf{10 dB}$ from 3.39 GHz to 9.1 GHz reflecting UWB characteristics. The diversity performance for the MIMO antenna has also been studied with the envelope correlation coefficient, which is less than 0.003 and the diversity gain is ~10dB. The observed realized gain is $>mathbf{2.5 dBi}$ and the simulated total efficiency of the system is approximately 93%.","PeriodicalId":325270,"journal":{"name":"2021 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125940925","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 : 2021-04-08DOI: 10.1109/APWiMob51111.2021.9435219
Sri Dewi Sartika Syarifuddin, Amri Khurniawan, S. Aulia, D. N. Ramadan, S. Hadiyoso
Rainfall is the amount of rainwater that falls on the surface of an area of square meters (m2), It means that rainfall of 1 millimetre (mm) is equivalent to 1 liter/m2, which means that rain characteristics vary from one location to others in an area of 1 meter in one area. In this case, rainfall measurement is only carried out for the entire region, even though rainfall in one area has a rainfall value that varies in each region. It is necessary to measure rainfall in each location point with different rainfall values in the region to determine the amount of rainwater. We need an online information system to calculate rainfall in real-time and input the rainfall data into the database. This system generates 100% accuracy in detecting the rain from the testing that has been carried out. The time delay in accessing the application is 2.5 seconds. With the rainfall measurement information system, the stakeholder will get information about the amount of rainwater more comfortable and real-time.
{"title":"Rainfall Information System Using Geometry Algorithm on IoT Platform","authors":"Sri Dewi Sartika Syarifuddin, Amri Khurniawan, S. Aulia, D. N. Ramadan, S. Hadiyoso","doi":"10.1109/APWiMob51111.2021.9435219","DOIUrl":"https://doi.org/10.1109/APWiMob51111.2021.9435219","url":null,"abstract":"Rainfall is the amount of rainwater that falls on the surface of an area of square meters (m2), It means that rainfall of 1 millimetre (mm) is equivalent to 1 liter/m2, which means that rain characteristics vary from one location to others in an area of 1 meter in one area. In this case, rainfall measurement is only carried out for the entire region, even though rainfall in one area has a rainfall value that varies in each region. It is necessary to measure rainfall in each location point with different rainfall values in the region to determine the amount of rainwater. We need an online information system to calculate rainfall in real-time and input the rainfall data into the database. This system generates 100% accuracy in detecting the rain from the testing that has been carried out. The time delay in accessing the application is 2.5 seconds. With the rainfall measurement information system, the stakeholder will get information about the amount of rainwater more comfortable and real-time.","PeriodicalId":325270,"journal":{"name":"2021 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125743527","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 : 2021-04-08DOI: 10.1109/APWiMob51111.2021.9435222
I. Shirokov, P. Evdokimov, M. Sokolova, E. Shirokova
The intelligent control system for smart city lighting is discussed in a paper. System is applicable for electric lighting of streets, highways, and surrounding areas. The system combines the motion sensors and the lighting fixtures are into single network. The automatic switching of lighting fixtures into a mode of reduced power is carried out while the external natural light level is higher a certain threshold value. When the moving object is appeared in nearby proximity of motion sensors its speed and direction of movement are determined. With regards these values the needed number of local lighting fixtures is determined. The powers of these lighting fixtures should be turned on the certain level. In other words the appearance of moving object at the next illuminated point is predicted. The increasing of lighting fixtures power of is carried out smoothly while the moving object is approaching to corresponding lamp post. Due to the dynamic power control of lighting fixtures the significant energy saving is achieved. The safety of traffic is increased, because of the lighting fixtures number, which operates with increased power, is determined by moving object speed. The possible braking distance of moving object will be significantly less than the roadway illuminated section. Smooth change of lighting fixture power reduces the pressure on vehicle driver.
{"title":"The Organizing of Smart Lighting in City and Highway","authors":"I. Shirokov, P. Evdokimov, M. Sokolova, E. Shirokova","doi":"10.1109/APWiMob51111.2021.9435222","DOIUrl":"https://doi.org/10.1109/APWiMob51111.2021.9435222","url":null,"abstract":"The intelligent control system for smart city lighting is discussed in a paper. System is applicable for electric lighting of streets, highways, and surrounding areas. The system combines the motion sensors and the lighting fixtures are into single network. The automatic switching of lighting fixtures into a mode of reduced power is carried out while the external natural light level is higher a certain threshold value. When the moving object is appeared in nearby proximity of motion sensors its speed and direction of movement are determined. With regards these values the needed number of local lighting fixtures is determined. The powers of these lighting fixtures should be turned on the certain level. In other words the appearance of moving object at the next illuminated point is predicted. The increasing of lighting fixtures power of is carried out smoothly while the moving object is approaching to corresponding lamp post. Due to the dynamic power control of lighting fixtures the significant energy saving is achieved. The safety of traffic is increased, because of the lighting fixtures number, which operates with increased power, is determined by moving object speed. The possible braking distance of moving object will be significantly less than the roadway illuminated section. Smooth change of lighting fixture power reduces the pressure on vehicle driver.","PeriodicalId":325270,"journal":{"name":"2021 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131871122","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 : 2021-04-08DOI: 10.1109/APWiMob51111.2021.9435225
F. Oktafiani, Effrina Yanti Hamid, A. Munir
This paper presents an experimental validation of aluminium-based ridged horn antenna with dual-polarization. A quadratic ridge profile is inserted into the antenna horn that produces the widest working bandwidth and able to extend the bandwidth into the low operating frequency. Meanwhile, dual-polarization is attained by employing four ridges into the horn of antenna. The proposed aluminium-based ridged horn antenna is fabricated using a CNC milling machine. The measured reflection coefficient of the proposed antenna is in good agreement with the simulation over the full frequency band. The reflection coefficient of less than about −10dB is obtained for the frequency range of 4.4 GHz to 12.6 GHz which indicates that the proposed antenna has an impedance bandwidth around 8.2 GHz. Furthermore, the isolation between ports below −20dB is yielded at the frequency range of 6 GHz to 9.7 GHz. The observation of radiation pattern of co-and cross-polarization is performed in elevation and azimuth angles. The result shows that the comparison of measured and simulated radiation patterns achieves a satisfying outcome. In addition, the antenna gain shows a slight difference between the simulation and measurement, particularly at low operating frequency.
{"title":"Experimental Validation of Dual-Polarized Aluminium-based Ridged Horn Antenna","authors":"F. Oktafiani, Effrina Yanti Hamid, A. Munir","doi":"10.1109/APWiMob51111.2021.9435225","DOIUrl":"https://doi.org/10.1109/APWiMob51111.2021.9435225","url":null,"abstract":"This paper presents an experimental validation of aluminium-based ridged horn antenna with dual-polarization. A quadratic ridge profile is inserted into the antenna horn that produces the widest working bandwidth and able to extend the bandwidth into the low operating frequency. Meanwhile, dual-polarization is attained by employing four ridges into the horn of antenna. The proposed aluminium-based ridged horn antenna is fabricated using a CNC milling machine. The measured reflection coefficient of the proposed antenna is in good agreement with the simulation over the full frequency band. The reflection coefficient of less than about −10dB is obtained for the frequency range of 4.4 GHz to 12.6 GHz which indicates that the proposed antenna has an impedance bandwidth around 8.2 GHz. Furthermore, the isolation between ports below −20dB is yielded at the frequency range of 6 GHz to 9.7 GHz. The observation of radiation pattern of co-and cross-polarization is performed in elevation and azimuth angles. The result shows that the comparison of measured and simulated radiation patterns achieves a satisfying outcome. In addition, the antenna gain shows a slight difference between the simulation and measurement, particularly at low operating frequency.","PeriodicalId":325270,"journal":{"name":"2021 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128777647","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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