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2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)最新文献

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A passive RF impedance tuner for 2.4 GHz ISM band applications 用于2.4 GHz ISM波段应用的无源射频阻抗调谐器
2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2018-04-09 DOI: 10.1109/WAMICON.2018.8363890
S. Sinha, Abhishek Kumar, S. Aniruddhan
{"title":"A passive RF impedance tuner for 2.4 GHz ISM band applications","authors":"S. Sinha, Abhishek Kumar, S. Aniruddhan","doi":"10.1109/WAMICON.2018.8363890","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363890","url":null,"abstract":"This paper presents the design of a passive RF matching network that can be tuned electronically to match a variable load impedance to a fixed source in the 2.4 GHz Industrial, Scientific and Medical (ISM) band. In principle, the design aims at maximum power transfer between the source and the load at any given frequency within the specified range. Theoretical analysis and simulation results have been presented to provide insight into the design of the pi-network circuit. An impedance tuner based on this theory was fabricated on a two-layered FR4 PCB. The fabricated tuner was tested for load impedances up to voltage standing wave ratio (VSWR) ≤ 6, wherein a maximum insertion loss of 4.1 dB was obtained at 2.45 GHz. A maximum insertion loss of 1.7 dB was observed for impedances up to VSWR ≤ 2.4.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115397195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Polygonalization of mm-wave dual-band circular phased arrays for multi-mode beamforming 用于多模波束形成的毫米波双频圆形相控阵多角化
2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2018-04-09 DOI: 10.1109/WAMICON.2018.8363889
G. Huff, Karl White, David Grayson, Fransisco Espinal, W. M. Dorsey, A. Stumme
{"title":"Polygonalization of mm-wave dual-band circular phased arrays for multi-mode beamforming","authors":"G. Huff, Karl White, David Grayson, Fransisco Espinal, W. M. Dorsey, A. Stumme","doi":"10.1109/WAMICON.2018.8363889","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363889","url":null,"abstract":"The modularization of 28 GHz multi-mode circular arrays and 60 GHz phased sub-arrays onto N-sided convex polygons is presented. This includes a study on the basic impact of phase error arising from this mapping and the achievable radiation performance from both bands. The intent of this mapping is to investigate the manufacturability and modularization of dual-band mm-wave phased arrays operating at 28 GHz and 60 GHz. The faceted 28 GHz design is operated as a non-uniform multi-mode array, where the polygon is used to approximate the ideal uniform circular array. This gives rise to a subarray concept for a multi-band (or wide band) antenna that operates as a traditional phased array panel in this architecture. In this work, we constrain the resulting design space to provide an approximation of uniform spacing based on the geometric parameterization of the structure for half-wave spacing in the 28 GHz band. The basic layout of the design is presented first and constrained to examine the error arising from modularization. A wavelength-scaled prototype operating at 2.4 GHz is used to demonstrate the measurement and error of the system.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133972604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Ultra-reliable and energy efficient wireless sensor networks 超可靠和节能的无线传感器网络
2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2018-04-09 DOI: 10.1109/WAMICON.2018.8363888
Nabeel I. Sulieman, R. Gitlin
{"title":"Ultra-reliable and energy efficient wireless sensor networks","authors":"Nabeel I. Sulieman, R. Gitlin","doi":"10.1109/WAMICON.2018.8363888","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363888","url":null,"abstract":"Near instant link failure recovery and lower energy consumption can be achieved via the synergistic combination of Diversity and modified Triangular Network Coding (eDC-NC), an open-loop coding technique, in a wide variety of network architectures. In this paper, eDC-NC is applied to Wireless Sensor Networks (WSNs) to enable very rapid recovering from wireless link/node failures and provide low computational and energy cost, which are very important metrics for WSNs. It is shown that utilizing eDC-NC coding in WSNs can provide ultra-reliability with very rapid fault recovery, decrease energy consumption, and increase the network throughput for broadcasting applications.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126247090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
A 4 by 10 series 60 GHz microstrip array antenna fed by butler matrix for 5G applications 采用管家矩阵馈电的4 × 10系列60ghz微带阵列天线，用于5G应用
2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2018-04-09 DOI: 10.1109/WAMICON.2018.8363899
Yuqiao Liu, Oday Bshara, I. Tekin, K. Dandekar
{"title":"A 4 by 10 series 60 GHz microstrip array antenna fed by butler matrix for 5G applications","authors":"Yuqiao Liu, Oday Bshara, I. Tekin, K. Dandekar","doi":"10.1109/WAMICON.2018.8363899","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363899","url":null,"abstract":"This paper presents a low-cost, beam-steerable 4 × 10 antenna array system operating at 60 GHz. The proposed antenna system is fed by a 4 × 10 Butler Matrix network designed using microstrip line (ML) structure. Chebyshev tapered microstrip antenna arrays with 10 series-fed elements are connected to four output ports of the feed network. Four steerable beams with maximum 16.5 dBi system gain and 1GHz bandwidth(BW) satisfy the requirements of millimeter wave propagation study and handset application for 5G communication.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129309159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Position location based on measurement reports in LTE cellular networks LTE蜂窝网络中基于测量报告的位置定位
2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2018-04-09 DOI: 10.1109/WAMICON.2018.8363501
Zaenab D. Shakir, J. Zec, I. Kostanic
{"title":"Position location based on measurement reports in LTE cellular networks","authors":"Zaenab D. Shakir, J. Zec, I. Kostanic","doi":"10.1109/WAMICON.2018.8363501","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363501","url":null,"abstract":"This paper proposes a new method to estimate the accuracy of locating LTE cellular subscribers. The proposed method is hybrid network-based method; it depends on the Reference Signal Received Power (RSRP) measurements and the predicted cell serving area. It uses LTE measurements and cell information, together with a simple predictive model, for the user equipment (UE) geo-location in two dimensions plan. The proposed work is evaluated by comparing estimations with Global Positioning System measurements in various scenarios determined by the number of sectors and sites that UE simultaneously reports. The root mean square error is calculated for the method validation. The main result shows how the location accuracy depends on the number of reported sectors and sites.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124802259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Efficient and low complex uplink detection for 5G massive MIMO systems 5G大规模MIMO系统的高效、低复杂度上行检测
2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2018-04-09 DOI: 10.1109/WAMICON.2018.8363885
Robin Chataut, R. Akl
{"title":"Efficient and low complex uplink detection for 5G massive MIMO systems","authors":"Robin Chataut, R. Akl","doi":"10.1109/WAMICON.2018.8363885","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363885","url":null,"abstract":"Massive Multiple Input Multiple Output is most promising technology that has been proposed in recent years, and it has been considered a technology to fulfill the requirement of fifth generation network. Even though this technology has many advantages, it must surpass certain challenges as well, and one of the major challenge is signal detection at the base station which becomes more complex with an increased number of antennas. Conventional methods that are used in MIMO detection are computationally very complex and inefficient to use in Massive MIMO system. So, there is a need for suitable detection method for these systems to have good bit error rate performance with lower complexity. In this paper, we propose a more efficient and computationally less complex algorithm for detection of Massive MIMO systems. Results through MATLAB simulations show that our proposed method provides a good tradeoff between computational complexity and BER performance and it is efficient for detection of Massive MIMO systems.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"486 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116692003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Balanced octave-tunable absorptive bandstop filter 平衡倍频程可调吸收性带阻滤波器
2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2018-04-09 DOI: 10.1109/WAMICON.2018.8363502
M. Hagag, Mahmoud Abdelfattah, D. Peroulis
{"title":"Balanced octave-tunable absorptive bandstop filter","authors":"M. Hagag, Mahmoud Abdelfattah, D. Peroulis","doi":"10.1109/WAMICON.2018.8363502","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363502","url":null,"abstract":"This paper presents, for the first time, a balanced octave-tunable absorptive bandstop filter. The balanced (differential) operation is realized by coupling two transmission lines with an opposite polarity to each of two high-Q tunable Substrate Integrated Waveguide (SIW) cavity resonators. The filter is based on the 90<sup>o</sup> hybrid-coupler absorptive bandstop filter topology enabling high levels of rejection over a wide tuning range. Both simulated and measured results are shown. The total size of the proposed filter is 0.39λ<inf>g</inf> × 0.36λ<inf>g</inf> (λ<inf>g</inf> at 1.57 GHz), and it is tunable from 1.57–3.18 GHz with 102% tuning range. Over the full range, the measured 10-dB fractional bandwidth ranges from 1–2.4%, and the attenuation level is better than 47 dB.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127945114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
A 2.2–4.2 GHz low-loss tunable bandpass filter based on low cost manufacturing of ABS polymer 基于ABS聚合物低成本制造的2.2-4.2 GHz低损耗可调谐带通滤波器
2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2018-04-09 DOI: 10.1109/WAMICON.2018.8363893
M. Sinanis, Mahmoud Abdelfattah, M. Cakmak, D. Peroulis
{"title":"A 2.2–4.2 GHz low-loss tunable bandpass filter based on low cost manufacturing of ABS polymer","authors":"M. Sinanis, Mahmoud Abdelfattah, M. Cakmak, D. Peroulis","doi":"10.1109/WAMICON.2018.8363893","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363893","url":null,"abstract":"A low loss, tunable, second order, bandpass filter covering the range 2.2–4.2 GHz is presented. The filter is based on evanescent-mode cavity resonators and manufactured by CNC machining of low cost acrylonitrile-butadiene-styrene (ABS) plastic. The filter has an insertion loss from 0.77–0.26 dB, with a 3-dB fractional bandwidth from 8.4% to 9.1%. The extracted unloaded quality factor (Q) of the resonators is 500–700 over the tuning range.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121026727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Stochastic gradient descent for reducing complexity in millimeter wave hybrid precoding design 基于随机梯度下降的毫米波混合预编码设计
2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2018-04-09 DOI: 10.1109/WAMICON.2018.8363884
Ahmed N. Mohammed, I. Kostanic
{"title":"Stochastic gradient descent for reducing complexity in millimeter wave hybrid precoding design","authors":"Ahmed N. Mohammed, I. Kostanic","doi":"10.1109/WAMICON.2018.8363884","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363884","url":null,"abstract":"Millimeter wave (mmWave) system tends to have a large number of antenna elements to compensate for the high channel path loss. This paper addresses the computational problem in the hybrid precoding design with large antenna arrays. Orthogonal Matching Pursuit (OMP) based on Stochastic Gradient Descent (SGD) is proposed in this paper. The proposed algorithm exhibits reduced complexity of the signal recovery instead of Least Square (LS) optimization. The simulation results show that a close performance, in terms of spectral efficiency, to the unconstrained optimal precoding case can be achieved with minimizing a cost function.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114392236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Reducing overhead in hybrid precoding design for millimeter wave MIMO systems 减少毫米波MIMO系统混合预编码设计的开销
2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON) Pub Date : 2018-04-09 DOI: 10.1109/WAMICON.2018.8363883
Ahmed N. Mohammed, I. Kostanic
{"title":"Reducing overhead in hybrid precoding design for millimeter wave MIMO systems","authors":"Ahmed N. Mohammed, I. Kostanic","doi":"10.1109/WAMICON.2018.8363883","DOIUrl":"https://doi.org/10.1109/WAMICON.2018.8363883","url":null,"abstract":"To compensate the high path loss in millimeter wave (mmWave) systems, large antenna arrays are used. In such circumstances, low cost hardware and power consumption are the main challenges. Furthermore, the hardware is tasked with computation of high dimensional optimal matrices of hybrid precoding design using the Orthogonal Matching Pursuit (OMP). This paper proposes an algorithm to enhance the efficiency of OMP reconstruction algorithm. The spectral efficiency of the mmWave system using the proposed algorithm is compared with the previously reported research and the optimal case (fully digital precoder). The results show that the proposed algorithm performs very closely to the optimal design even though the complexity of the design is reduced.","PeriodicalId":193359,"journal":{"name":"2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123748873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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