Pub Date : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253137
A. Lestari, D. D. Patriadi, I. H. Putri, B. Harnawan, O. D. Winarko, W. Sediono, M. A. K. Titasari
This paper presents an overview of FPGA-based SDR implementation on FMCW X-band maritime surveillance radar INDERA MX-4. The FPGA implementation proposed in this work significantly simplifies the hardware architecture of the radar. In particular, the RF and electronic systems can be simplified into 3 main units only, i.e. LO, FPGA (with integrated ADC) and transceiver. Such architecture simplification should lead to more compact and robust RF and electronic system hardware. The FPGA development is carried out on FPGA development board ALTERA Stratix III following standard FPGA programming steps. The radar functionalities programmed in the FPGA unit include DSP, mixers, frequency agility, RTDC and ADC, and have been successfully verified. The developed FPGA unit has been integrated with the rest of the radar subsystems (antennas, transceiver, RF unit, etc.) to realize an FPGA-based SDR. Field measurements, located at the harbor of Merak in Java, Indonesia, have been carried out to verify the developed FPGA-based SDR. It has been demonstrated that the FPGA unit has worked properly to support the designed SDR implementation on the radar. In particular, good detection of various ships in the harbor area has been achieved. This result demonstrates the successful implementation of the FPGA unit in the complete integrated SDR system.
{"title":"FPGA-based SDR implementation for FMCW maritime surveillance radar","authors":"A. Lestari, D. D. Patriadi, I. H. Putri, B. Harnawan, O. D. Winarko, W. Sediono, M. A. K. Titasari","doi":"10.1109/ICRAMET.2017.8253137","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253137","url":null,"abstract":"This paper presents an overview of FPGA-based SDR implementation on FMCW X-band maritime surveillance radar INDERA MX-4. The FPGA implementation proposed in this work significantly simplifies the hardware architecture of the radar. In particular, the RF and electronic systems can be simplified into 3 main units only, i.e. LO, FPGA (with integrated ADC) and transceiver. Such architecture simplification should lead to more compact and robust RF and electronic system hardware. The FPGA development is carried out on FPGA development board ALTERA Stratix III following standard FPGA programming steps. The radar functionalities programmed in the FPGA unit include DSP, mixers, frequency agility, RTDC and ADC, and have been successfully verified. The developed FPGA unit has been integrated with the rest of the radar subsystems (antennas, transceiver, RF unit, etc.) to realize an FPGA-based SDR. Field measurements, located at the harbor of Merak in Java, Indonesia, have been carried out to verify the developed FPGA-based SDR. It has been demonstrated that the FPGA unit has worked properly to support the designed SDR implementation on the radar. In particular, good detection of various ships in the harbor area has been achieved. This result demonstrates the successful implementation of the FPGA unit in the complete integrated SDR system.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123544615","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253160
A. S. Arifin, Dimas Agung Prasetyo
The growing cellular customer resulting a hungry data traffic occurs around the world including Indonesia. The number of cellular user reaches 264.4 millions in 2015 which passes the total population, i.e. 259,1 millions people. Consequence of these phenomenon is the demand of traffic up to 700 peta byte with Compound Annual Growth Rate (CAGR) being 120%. Based on those data, spectrum scarcity could happen up to 500 MHz in 2020. There has been many techniques to solve the spectrum scarcity, i.e. technical approaches and regulation approaches. The technical approaches includes multiple input multiple output (MIMO), beamforming, relaying, frequency reuse, and high order modulation. The regulation approaches includes cooperative tower, spectrum sharing, and network sharing. There is a possibility to exploit spectrum used by broadcasting media, such as television (TV), using TV White Space. Television White Space (TVWS) takes an advantage the interleaved spectrum to deliver internet connection in specify area. Because of its coverage, TVWS can be expected to increase internet penetration in rural area.
{"title":"Study on television white space in Indonesia","authors":"A. S. Arifin, Dimas Agung Prasetyo","doi":"10.1109/ICRAMET.2017.8253160","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253160","url":null,"abstract":"The growing cellular customer resulting a hungry data traffic occurs around the world including Indonesia. The number of cellular user reaches 264.4 millions in 2015 which passes the total population, i.e. 259,1 millions people. Consequence of these phenomenon is the demand of traffic up to 700 peta byte with Compound Annual Growth Rate (CAGR) being 120%. Based on those data, spectrum scarcity could happen up to 500 MHz in 2020. There has been many techniques to solve the spectrum scarcity, i.e. technical approaches and regulation approaches. The technical approaches includes multiple input multiple output (MIMO), beamforming, relaying, frequency reuse, and high order modulation. The regulation approaches includes cooperative tower, spectrum sharing, and network sharing. There is a possibility to exploit spectrum used by broadcasting media, such as television (TV), using TV White Space. Television White Space (TVWS) takes an advantage the interleaved spectrum to deliver internet connection in specify area. Because of its coverage, TVWS can be expected to increase internet penetration in rural area.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123903860","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253163
Y. S. Amrullah, Y. N. Wijayanto, A. Setiawan, Y. Wahyu
A quasi-yagi antenna Ka-band frequency range has been proposed and simulated. It consists of three directors, a driver, a stripline feed, a substrate and a ground plane. Optimasion is obtained by modifying components design parameters' value. From simulation results, the designed quasi-yagi antenna has small and compact size and works well on Ka- band, mainly at 28 GHz. At 28 GHz, its return loss, gain and beamwidth are −18 dB, 8.12 dB and 57.2 degree, respectively. Based on its performance at 28 GHz, the designed antenna can be implemented for 5G application.
{"title":"Enhancement of quasi yagi antenna design for Ka-band application","authors":"Y. S. Amrullah, Y. N. Wijayanto, A. Setiawan, Y. Wahyu","doi":"10.1109/ICRAMET.2017.8253163","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253163","url":null,"abstract":"A quasi-yagi antenna Ka-band frequency range has been proposed and simulated. It consists of three directors, a driver, a stripline feed, a substrate and a ground plane. Optimasion is obtained by modifying components design parameters' value. From simulation results, the designed quasi-yagi antenna has small and compact size and works well on Ka- band, mainly at 28 GHz. At 28 GHz, its return loss, gain and beamwidth are −18 dB, 8.12 dB and 57.2 degree, respectively. Based on its performance at 28 GHz, the designed antenna can be implemented for 5G application.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134497808","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253159
M. Aalsalem, W. Z. Khan, W. Gharibi, N. Armi
The oil and gas industrial sector is nowadays inclined towards utilizing smart field technologies for optimizing various operations of upstream, midstream and downstream sectors. The recent advances in Internet of things (IoTs) have promising benefits and advantages over manual wired/wireless systems. Oil and gas wells form an important element of upstream sector. After identifying potential viable fields and drilling of exploratory oil and gas wells, wellhead monitoring is another essential and crucial activity not only for safe operation and productivity but also for extending the production life of these wells. In this paper we propose an intelligent IoT based monitoring system which involves smart objects for reliable and efficient monitoring of oil and gas wells. The smart IoT objects are capable of sensing important parameters like pressure temperature, vibration etc. and reliably, efficiently and timely deliver the sensed data to the control center. The proposed system proactively reports about the anomalous events for predictive maintenance of the well equipment. The detection and reporting catastrophic failures and destructive events on time will increase production downtime and also oil theft can be easily prevented.
{"title":"An intelligent oil and gas well monitoring system based on Internet of Things","authors":"M. Aalsalem, W. Z. Khan, W. Gharibi, N. Armi","doi":"10.1109/ICRAMET.2017.8253159","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253159","url":null,"abstract":"The oil and gas industrial sector is nowadays inclined towards utilizing smart field technologies for optimizing various operations of upstream, midstream and downstream sectors. The recent advances in Internet of things (IoTs) have promising benefits and advantages over manual wired/wireless systems. Oil and gas wells form an important element of upstream sector. After identifying potential viable fields and drilling of exploratory oil and gas wells, wellhead monitoring is another essential and crucial activity not only for safe operation and productivity but also for extending the production life of these wells. In this paper we propose an intelligent IoT based monitoring system which involves smart objects for reliable and efficient monitoring of oil and gas wells. The smart IoT objects are capable of sensing important parameters like pressure temperature, vibration etc. and reliably, efficiently and timely deliver the sensed data to the control center. The proposed system proactively reports about the anomalous events for predictive maintenance of the well equipment. The detection and reporting catastrophic failures and destructive events on time will increase production downtime and also oil theft can be easily prevented.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123512848","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253155
Indra Sugati, Y. K. Ningsih, S. Alam
This paper proposes a new design of stacked rectangular ring slot microstrip antenna using parasitic load with slits and fed by coplanar waveguide. The measurement results shown return loss of −14,94 dB with VSWR 1,44 at frequency 2100 MHz for UMTS, at frequency 2300 MHz for LTE produce return loss −21,21 dB with VSWR 1,19 and return loss of −21,81 dB with VSWR 1,18 at frequency 2400 MHz for WiFi application.
{"title":"Stacked rectangular ring slot microstrip antenna with parasitic load for UMTS, LTE and WiFi applications","authors":"Indra Sugati, Y. K. Ningsih, S. Alam","doi":"10.1109/ICRAMET.2017.8253155","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253155","url":null,"abstract":"This paper proposes a new design of stacked rectangular ring slot microstrip antenna using parasitic load with slits and fed by coplanar waveguide. The measurement results shown return loss of −14,94 dB with VSWR 1,44 at frequency 2100 MHz for UMTS, at frequency 2300 MHz for LTE produce return loss −21,21 dB with VSWR 1,19 and return loss of −21,81 dB with VSWR 1,18 at frequency 2400 MHz for WiFi application.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117084698","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253145
D. Yulian, R. Hidayat, H. A. Nugroho, A. Lestari, F. Prasaja
Automated ship detection process has been an essential need for modern Radar system to perform automatic target tracking. This automated process is more commonly found in pulse radars with high rate of Signal to Noise Ratio (SNR), not in Frequency Modulated Continuous Wave (FMCW) radars with very low rate of SNR. The process of automated ship detection with image enhancement and feature extraction in FMCW radars will be elaborated in this paper. The process of image enhancement is designed to split target from the noise and enhance the image of the target with very low SNR. The output of this process will be classified into several groups by utilizing object geographical, circularity and solidity data. From this process, it clearly shows that with image enhancement, the radar detecting capability in average increases by 390%, 140%, 112% and 62% for radar image within the radii of 2 Nautical Mile (NM), 4 NM, 10 NM and 20 NM. With image classification by geographical data and feature extraction, the ship images will be significantly distinguished from clutter with the accuracy of 90%.
{"title":"Automated ship detection with image enhancement and feature extraction in FMCW marine radars","authors":"D. Yulian, R. Hidayat, H. A. Nugroho, A. Lestari, F. Prasaja","doi":"10.1109/ICRAMET.2017.8253145","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253145","url":null,"abstract":"Automated ship detection process has been an essential need for modern Radar system to perform automatic target tracking. This automated process is more commonly found in pulse radars with high rate of Signal to Noise Ratio (SNR), not in Frequency Modulated Continuous Wave (FMCW) radars with very low rate of SNR. The process of automated ship detection with image enhancement and feature extraction in FMCW radars will be elaborated in this paper. The process of image enhancement is designed to split target from the noise and enhance the image of the target with very low SNR. The output of this process will be classified into several groups by utilizing object geographical, circularity and solidity data. From this process, it clearly shows that with image enhancement, the radar detecting capability in average increases by 390%, 140%, 112% and 62% for radar image within the radii of 2 Nautical Mile (NM), 4 NM, 10 NM and 20 NM. With image classification by geographical data and feature extraction, the ship images will be significantly distinguished from clutter with the accuracy of 90%.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"274 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120860938","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253143
D. Kurniawan, O. Heriana, T. Praludi, Ros Sariningrum
Data acquisition and Signal Processing is an important part of frequency modulated continuous wave (FMCW) radar system. In recent year P2ET-LIPI was developing FMCW navigation radar system in portable size. The main component of data acquisition for navigation radar is highspeed Analog to Digital Conversion (ADC) USB-2020 board and signal processing algorithm has been developed using Visual C# 2015 Community Edition. USB-2020 board has two channel ADC on board with 12 bits resolution and operated in a burst-io mode to get maximum sampling rate at 20 MS/s. A timing generator for synchronization between ADC and linear frequency modulation (LFM) chirp generator is developed using Complex Programmable Logic Device (CPLD) Max II series based on VHSIC hardware description language (VHDL). Signal processing unit consists of windowing function to reduce side- lobe suppression, Fast Fourier Transform (FFT) function to get range information and adaptive threshold using three algorithms of Constant False Alarm Rate (CFAR): Cell Averaging (CA), Order Statistic (OS) and Variable Index (VI) CFAR. The experiment shows that the data acquisition module can capture In-phase and Quadrature (I/Q) beat signal and signal processing algorithm can detect object/target from the noise.
数据采集与信号处理是调频连续波(FMCW)雷达系统的重要组成部分。近年来，P2ET-LIPI正在开发便携式FMCW导航雷达系统。导航雷达数据采集的主要组件是高速模数转换(ADC) USB-2020板，信号处理算法使用Visual c# 2015 Community Edition开发。USB-2020板上有两个12位分辨率的通道ADC，并在突发io模式下工作，以获得20 MS/s的最大采样率。基于VHSIC硬件描述语言(VHDL)，利用复杂可编程逻辑器件(CPLD) Max II系列开发了一种用于ADC和线性调频(LFM)啁啾发生器同步的时序发生器。信号处理单元由减小旁瓣抑制的窗口函数、获取距离信息的快速傅里叶变换(FFT)函数和采用恒虚警率(CFAR)算法的自适应阈值组成:单元平均(CA)、顺序统计(OS)和变指数(VI) CFAR。实验表明，该数据采集模块可以捕获相和正交(I/Q)拍信号，信号处理算法可以从噪声中检测出目标。
{"title":"Data acquisition and signal processing on FMCW navigation radar system","authors":"D. Kurniawan, O. Heriana, T. Praludi, Ros Sariningrum","doi":"10.1109/ICRAMET.2017.8253143","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253143","url":null,"abstract":"Data acquisition and Signal Processing is an important part of frequency modulated continuous wave (FMCW) radar system. In recent year P2ET-LIPI was developing FMCW navigation radar system in portable size. The main component of data acquisition for navigation radar is highspeed Analog to Digital Conversion (ADC) USB-2020 board and signal processing algorithm has been developed using Visual C# 2015 Community Edition. USB-2020 board has two channel ADC on board with 12 bits resolution and operated in a burst-io mode to get maximum sampling rate at 20 MS/s. A timing generator for synchronization between ADC and linear frequency modulation (LFM) chirp generator is developed using Complex Programmable Logic Device (CPLD) Max II series based on VHSIC hardware description language (VHDL). Signal processing unit consists of windowing function to reduce side- lobe suppression, Fast Fourier Transform (FFT) function to get range information and adaptive threshold using three algorithms of Constant False Alarm Rate (CFAR): Cell Averaging (CA), Order Statistic (OS) and Variable Index (VI) CFAR. The experiment shows that the data acquisition module can capture In-phase and Quadrature (I/Q) beat signal and signal processing algorithm can detect object/target from the noise.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"11 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124857351","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253166
A. Setiawan, Y. Y. Maulana, Y. Sulaeman, T. Praludi, Y. Taryana
This paper presents a design of three port stripline circulator using magnetized ferrite. The design is proposed to comply a radar system at 3 GHz operation. The geometry design consists of two ferrite planar disk resonators separated by a disk center conductor symmetrically coupled by three port of transmission line. In the design process, the ferrite material is magnetized perpendicularly to the plane of the device by a static magnetic field to obtain all three port are matched. The ferrite of Ni-Zn material, the saturation magnetization of 2400 Gauss and ferromagnetic linewidth of 200 Oe were used for disk resonator and Cu metal as conductor of the transmission line. The EM simulation software was used to simulate, optimize and record the design parameter in order to achieve good insertion loss (S21), return loss (S11) and isolation (S31). The simulation experiment has done by the difference of magnetization. The best result recorded for 3 GHz at 1600 Oe of magnetization, namely; −0.411 dB of S21, −28.111 dB of S11, and −41.831 dB of S31.
{"title":"Design of 3 GHz stripline ferrite circulator for radar applications","authors":"A. Setiawan, Y. Y. Maulana, Y. Sulaeman, T. Praludi, Y. Taryana","doi":"10.1109/ICRAMET.2017.8253166","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253166","url":null,"abstract":"This paper presents a design of three port stripline circulator using magnetized ferrite. The design is proposed to comply a radar system at 3 GHz operation. The geometry design consists of two ferrite planar disk resonators separated by a disk center conductor symmetrically coupled by three port of transmission line. In the design process, the ferrite material is magnetized perpendicularly to the plane of the device by a static magnetic field to obtain all three port are matched. The ferrite of Ni-Zn material, the saturation magnetization of 2400 Gauss and ferromagnetic linewidth of 200 Oe were used for disk resonator and Cu metal as conductor of the transmission line. The EM simulation software was used to simulate, optimize and record the design parameter in order to achieve good insertion loss (S21), return loss (S11) and isolation (S31). The simulation experiment has done by the difference of magnetization. The best result recorded for 3 GHz at 1600 Oe of magnetization, namely; −0.411 dB of S21, −28.111 dB of S11, and −41.831 dB of S31.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"228 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127531776","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253172
C. Wael, N. Armi, M. T. Miftahushudur, D. Muliawarda, G. Sugandi
Cognitive Radio (CR) as an emerging technology has offered a solution for underutilized spectrum problem by allowing spectrum sharing among Primary Users (PUs) and Secondary Users (SUs). To protect every PU, the SUs need to adjust their transmit power, so it will not degrade PU's performance. In this paper, power control algorithm using Iterative Partitioned Water Filling (IPW) are performed for CR network with multiple PUs and SUs under opportunistic spectrum access mode. The simulation is conducted for CR networks with multiple PUs and and SUs under fading channel. From the simulation results, IPW under Rician channel has better performance than Rayleigh channel.
{"title":"Power allocation in OFDM-based cognitive radio networks for fading channel","authors":"C. Wael, N. Armi, M. T. Miftahushudur, D. Muliawarda, G. Sugandi","doi":"10.1109/ICRAMET.2017.8253172","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253172","url":null,"abstract":"Cognitive Radio (CR) as an emerging technology has offered a solution for underutilized spectrum problem by allowing spectrum sharing among Primary Users (PUs) and Secondary Users (SUs). To protect every PU, the SUs need to adjust their transmit power, so it will not degrade PU's performance. In this paper, power control algorithm using Iterative Partitioned Water Filling (IPW) are performed for CR network with multiple PUs and SUs under opportunistic spectrum access mode. The simulation is conducted for CR networks with multiple PUs and and SUs under fading channel. From the simulation results, IPW under Rician channel has better performance than Rayleigh channel.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132368469","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253161
Muhammad Fadhil, H. Wijanto, Y. Wahyu
This paper presents a bandpass filter designed to passes the required uplink frequency in the band-3 for eNodeB LTE (1.710–1.785 GHz). The filter is designed using hairpin line method, 0.01 dB ripple Chebyshev response, and Duroid RT- 5880 as the substrate to result a bandwidth of 75 MHz. The results of measurement at the center frequency (1.7475 GHz) are −0.5005 dB on the insertion loss, −24.8062 dB on the return loss, and 1.1221 on the VSWR.
{"title":"Hairpin line bandpass filter for 1.8 GHz FDD-LTE eNodeB receiver","authors":"Muhammad Fadhil, H. Wijanto, Y. Wahyu","doi":"10.1109/ICRAMET.2017.8253161","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253161","url":null,"abstract":"This paper presents a bandpass filter designed to passes the required uplink frequency in the band-3 for eNodeB LTE (1.710–1.785 GHz). The filter is designed using hairpin line method, 0.01 dB ripple Chebyshev response, and Duroid RT- 5880 as the substrate to result a bandwidth of 75 MHz. The results of measurement at the center frequency (1.7475 GHz) are −0.5005 dB on the insertion loss, −24.8062 dB on the return loss, and 1.1221 on the VSWR.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134467048","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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