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Compact monostatic/bistatic UWB system for wall parameter extraction 用于壁面参数提取的紧凑单/双基地超宽带系统
2015 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2015-06-22 DOI: 10.1109/RWS.2015.7129710
Stephen Magoon, C. Thajudeen, A. Hoorfar, A. Fathy
{"title":"Compact monostatic/bistatic UWB system for wall parameter extraction","authors":"Stephen Magoon, C. Thajudeen, A. Hoorfar, A. Fathy","doi":"10.1109/RWS.2015.7129710","DOIUrl":"https://doi.org/10.1109/RWS.2015.7129710","url":null,"abstract":"A compact monostatic/bistatic UWB radar system has been developed. It uses low cost, off the shelf components, and is ideally suited for wall characterization. Algorithms to estimate the constitutive wall parameters have been successfully implemented with this module. These methods include Time-Domain Reflectometry (TDR), a hybrid of Time-Delay Estimation (TDE) and Reflected Waves Ratio Method (RWR). Wall parameters for different wall types have been measured for various radar standoff distances, as well as in the presence of ground reflection and other multipath scenarios.","PeriodicalId":306938,"journal":{"name":"2015 IEEE Radio and Wireless Symposium (RWS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125472723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new multiple-antenna-port and multiple-user-port antenna tuner 一个新的多天线端口和多用户端口天线调谐器
2015 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2015-06-22 DOI: 10.1109/RWS.2015.7129728
F. Broydé, E. Clavelier
{"title":"A new multiple-antenna-port and multiple-user-port antenna tuner","authors":"F. Broydé, E. Clavelier","doi":"10.1109/RWS.2015.7129728","DOIUrl":"https://doi.org/10.1109/RWS.2015.7129728","url":null,"abstract":"A new multiple-antenna-port and multiple-user-port antenna tuner has the structure of a multidimensional π-network. It is shown that it is able to provide decoupling and matching in the presence of strong variations in the electromagnetic characteristics of the volume surrounding the antennas.","PeriodicalId":306938,"journal":{"name":"2015 IEEE Radio and Wireless Symposium (RWS)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132472502","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
On coupled-resonator filters with tunable bandwidth 带宽可调的耦合谐振滤波器
2015 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2015-06-22 DOI: 10.1109/RWS.2015.7129757
M. K. Wohler, A. Jaschke, Mario Schühler
{"title":"On coupled-resonator filters with tunable bandwidth","authors":"M. K. Wohler, A. Jaschke, Mario Schühler","doi":"10.1109/RWS.2015.7129757","DOIUrl":"https://doi.org/10.1109/RWS.2015.7129757","url":null,"abstract":"We present a tunable bandpass filter in parallel structure in comparison to a tunable filter in serial structure. The filters are tunable in bandwidth with a constant center frequency. The investigations are based on coupled-resonators bandpass filters. The approach of a parallel topology can be adopted for filter tunable in the center frequency, allowing for a fully tunable frequency response.","PeriodicalId":306938,"journal":{"name":"2015 IEEE Radio and Wireless Symposium (RWS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115153377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of information leak by robustness evaluation of countermeasure to disguised CSI in PLNC considering physical layer security 基于物理层安全的PLNC对伪装CSI的鲁棒性评估
2015 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2015-06-19 DOI: 10.1109/RWS.2015.7129751
Kengo Matsumoto, O. Takyu, T. Fujii, T. Ohtsuki, F. Sasamori, S. Handa
{"title":"Evaluation of information leak by robustness evaluation of countermeasure to disguised CSI in PLNC considering physical layer security","authors":"Kengo Matsumoto, O. Takyu, T. Fujii, T. Ohtsuki, F. Sasamori, S. Handa","doi":"10.1109/RWS.2015.7129751","DOIUrl":"https://doi.org/10.1109/RWS.2015.7129751","url":null,"abstract":"In Physical Layer Network Coding (PLNC), the two information sources access to the relay station, simultaneously and thus the transmitted signals are combined, together. Since the relay station hardly decodes each information single, the security for avoiding the information leak to the relay station is maintained. Therefore, the PLNC is attracting much attention in terms of physical layer security (PLS). However, the information source needs the transmit power control based on the channel state information (CSI). If the relay station is untrusted, it camouflages the real CSI for stealing the information. This paper considers the camouflaging of CSI is modeled as the liner programming problem in the subject to the statistic of CSI following the model of propagation. We clarify the maximal capacity of tapping by the relay station.","PeriodicalId":306938,"journal":{"name":"2015 IEEE Radio and Wireless Symposium (RWS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122851940","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
An experimental evaluation on EVM performance for 4-CSK(Color Shift Keying) using visible light with multiple full-color LEDs 4-CSK(色移键控)的EVM性能的实验评估使用可见光与多个全彩led
2015 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2015-06-19 DOI: 10.1109/RWS.2015.7129740
Hiroki Shimamoto, Y. Kozawa, Y. Umeda
{"title":"An experimental evaluation on EVM performance for 4-CSK(Color Shift Keying) using visible light with multiple full-color LEDs","authors":"Hiroki Shimamoto, Y. Kozawa, Y. Umeda","doi":"10.1109/RWS.2015.7129740","DOIUrl":"https://doi.org/10.1109/RWS.2015.7129740","url":null,"abstract":"Color Shift Keying (CSK) is a modulation method for visible light communications, which transmit information through three-band light of multi-color light source, outlined IEEE 802.15.7. In this paper, new CSK system using multiple full-color LEDs is proposed for realizing non-variable LED current control. Moreover, error vector magnitude (EVM) performance of the proposed system is demonstrated and evaluated. Consequently, when the distance between the plane of the LEDs and PD is larger than 12cm, the EVM performance of the proposed CSK is almost identical with that of the conventional CSK.","PeriodicalId":306938,"journal":{"name":"2015 IEEE Radio and Wireless Symposium (RWS)","volume":"285 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115529613","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: 5
A capacitively-loaded loop antenna for UHF near-field RFID reader applications 一种用于超高频近场RFID阅读器应用的电容负载环形天线
2015 IEEE Radio and Wireless Symposium (RWS) Pub Date : 1900-01-01 DOI: 10.1109/RWS.2015.7129755
M. Dhaouadi, M. Mabrouk, T. Vuong, A. Souza, A. Ghazel
{"title":"A capacitively-loaded loop antenna for UHF near-field RFID reader applications","authors":"M. Dhaouadi, M. Mabrouk, T. Vuong, A. Souza, A. Ghazel","doi":"10.1109/RWS.2015.7129755","DOIUrl":"https://doi.org/10.1109/RWS.2015.7129755","url":null,"abstract":"In this work, we present a compact capacitively-loaded loop antenna for Ultra-High Frequency (UHF) near-field radio frequency identification (RFID) reader applications. The antenna structure is composed by folded-dipole loop structure with two C-arms and miniaturized to small size of 40 × 36 × 1.6 mm3 for RFID applications. Our bandwidth measurement of antenna prototype is 10.5 MHz from 865-875.5 MHz with reflection coefficient less than 10 dB, which covers all of Europe RFID Band (865-868 MHz). Furthermore, a capacitive loading through two C-arms is created inside the loop antenna and has an effect of increasing the electrical length of the antenna structure. Therefore, the proposed antenna can be dedicated to different UHF RFID bands by varying the C-arm parameters. The measured reading capability of our antenna is up to 7 cm for near-field RFID Tag, and our measurements show this antenna is suitable for UHF near-field RFID reader applications.","PeriodicalId":306938,"journal":{"name":"2015 IEEE Radio and Wireless Symposium (RWS)","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132121051","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
Novel non-square, Gray coded, 64-QAM constellations 新颖的非方形，格雷编码，64-QAM星座
2015 IEEE Radio and Wireless Symposium (RWS) Pub Date : 1900-01-01 DOI: 10.1109/RWS.2015.7129733
D. H. Morais
{"title":"Novel non-square, Gray coded, 64-QAM constellations","authors":"D. H. Morais","doi":"10.1109/RWS.2015.7129733","DOIUrl":"https://doi.org/10.1109/RWS.2015.7129733","url":null,"abstract":"This paper outlines a method whereby a Gray coded, square, Quadrature Amplitude Modulation 64 point constellation, modified by relocating the inner most four and outer most four constellation points to specific positions, results in Gray coded, non-square constellations, with reduced peak-to-average power ratio at the modulator output relative to that resulting from the square constellation. As a consequence, a higher average transmitter output power is possible. Further, though receiver threshold level is increased, this increase is measurably less than the increase achievable in average transmitter output power, leading to an achievable system gain that is higher by approximately 0.9 dB.","PeriodicalId":306938,"journal":{"name":"2015 IEEE Radio and Wireless Symposium (RWS)","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133266481","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: 2
A low power 24 GHz radar system for occupancy monitoring 一种用于占用监控的低功耗24ghz雷达系统
2015 IEEE Radio and Wireless Symposium (RWS) Pub Date : 1900-01-01 DOI: 10.1109/RWS.2015.7129719
F. Lurz, S. Mann, S. Linz, S. Lindner, F. Barbon, R. Weigel, A. Koelpin
{"title":"A low power 24 GHz radar system for occupancy monitoring","authors":"F. Lurz, S. Mann, S. Linz, S. Lindner, F. Barbon, R. Weigel, A. Koelpin","doi":"10.1109/RWS.2015.7129719","DOIUrl":"https://doi.org/10.1109/RWS.2015.7129719","url":null,"abstract":"This paper presents a low power 24GHz Doppler radar system for presence detection and occupancy monitoring. It is based on a minimalistic hardware approach and is able to wirelessly sense human respiratory signals so that even non-moving persons can be detected. By intermittently measuring, the average power consumption could be significantly reduced down to e.g. 0.2mW for 20 measurements per second. Experiments verify that, due to the short wavelength, the single channel receiver limitations can be neglected when only a detection of human respiratory but no evaluation of the breathing frequency is necessary.","PeriodicalId":306938,"journal":{"name":"2015 IEEE Radio and Wireless Symposium (RWS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127235722","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
Series-cascaded absorptive notch-filters for 4G-LTE radios 用于4G-LTE无线电的串联吸收陷波滤波器
2015 IEEE Radio and Wireless Symposium (RWS) Pub Date : 1900-01-01 DOI: 10.1109/RWS.2015.7129726
D. Psychogiou, Rui Mao, D. Peroulis
{"title":"Series-cascaded absorptive notch-filters for 4G-LTE radios","authors":"D. Psychogiou, Rui Mao, D. Peroulis","doi":"10.1109/RWS.2015.7129726","DOIUrl":"https://doi.org/10.1109/RWS.2015.7129726","url":null,"abstract":"This paper focuses on novel filtering architectures for LTE-band transmit and receive RF-filters. For the first time, it is demonstrated that advanced filtering components with low insertion loss (2.8-4.9 dB) and large attenuation stopbands (25-50 dB) can be created by series-cascaded absorptive bandstop filters with quality factors even as low as 12-45. Transmit and receive filter modules for LTE-band 1 duplex circuits are shown. Lumped-element absorptive bandstop filters with the highest reported Q of 43 at 2 GHz are presented. Tunability of the presented filter arc hitectures is also discussed.","PeriodicalId":306938,"journal":{"name":"2015 IEEE Radio and Wireless Symposium (RWS)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114950643","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: 17
Development of a very low-cost down converter for the IEEE802.11ad wireless network appliance test 为IEEE802.11ad无线网络设备测试开发一种低成本的下变频器
2015 IEEE Radio and Wireless Symposium (RWS) Pub Date : 1900-01-01 DOI: 10.1109/RWS.2015.7129753
Kohei Fujiwara, N. Shibagaki, Takeshi Kobayashi, H. Hanyu
{"title":"Development of a very low-cost down converter for the IEEE802.11ad wireless network appliance test","authors":"Kohei Fujiwara, N. Shibagaki, Takeshi Kobayashi, H. Hanyu","doi":"10.1109/RWS.2015.7129753","DOIUrl":"https://doi.org/10.1109/RWS.2015.7129753","url":null,"abstract":"We developed a low-cost down converter based on the harmonic mixer applicable to IEEE802.11ad 60 GHz band test solutions. We confirmed the performance by absolute power calibration with a power sensor and phase calibration with a comb generator on a new generation Vector Network Analyzer. In this report, we describe the details of a low-cost down converter with 5% error vector magnitude by a magnitude and phase compensation technique successfully. Therefore, it would be able to provide a very low-cost test solution with the down converter and a digital oscilloscope.","PeriodicalId":306938,"journal":{"name":"2015 IEEE Radio and Wireless Symposium (RWS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128080382","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: 2
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