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2014 IEEE Radio and Wireless Symposium (RWS)最新文献

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Phase noise reduction and spurious suppression in oscillators utilizing self-injection loops 利用自注入回路的振荡器相位降噪和杂散抑制
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830162
Li Zhang, A. Poddar, U. Rohde, A. Daryoush
{"title":"Phase noise reduction and spurious suppression in oscillators utilizing self-injection loops","authors":"Li Zhang, A. Poddar, U. Rohde, A. Daryoush","doi":"10.1109/RWS.2014.6830162","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830162","url":null,"abstract":"Dual loop self-injection locking has been proposed for phase noise reduction and side-mode suppression in microwave oscillators. Experiments for both electrical and opto-electronic oscillator at 10 GHz that incorporate dual loop self-injection locking are performed to demonstrate the concept of self-injection locking (SIL) and provide insights into the behavior of microwave oscillators employing such techniques.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124826956","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
Full duplex prototype of OFDM on GNURadio and USRPs 基于GNURadio和usrp的OFDM全双工原型
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830085
Wei Zhou, G. Villemaud, T. Risset
{"title":"Full duplex prototype of OFDM on GNURadio and USRPs","authors":"Wei Zhou, G. Villemaud, T. Risset","doi":"10.1109/RWS.2014.6830085","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830085","url":null,"abstract":"Full-duplex is a technology in telecommunication domain that can perform transmitting and receiving at the same time and in the same frequency band. The major obstacle of full-duplex is the self-interference (SI). Some previous works have focused on the SI cancellation in radio frequency (RF), and generally on a narrowband signal model. We have implemented a full-duplex prototype with orthogonal frequency-division multiplexing (OFDM) technology on GNURadio and Universal Software Radio Peripherals (USRP). We focus on the baseband, namely the digital part of the SI cancellation. Our testbed can achieve a digital cancellation of 27dB. After the cancellation, the signal of interest can achieve a bit error rate (BER) in the scale of 10-5 at 4 meters, which is very close to the performance of half-duplex. This is, to our knowledge, the first full duplex implementation for OFDM technology.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122068979","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: 21
Investigating the effect of grounding GPS antennas on their radiation properties on vehicular platforms 研究车载平台上GPS天线接地对其辐射特性的影响
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830074
D. Aloi, E. Ghafari, A. Steffes, M. Sharawi
{"title":"Investigating the effect of grounding GPS antennas on their radiation properties on vehicular platforms","authors":"D. Aloi, E. Ghafari, A. Steffes, M. Sharawi","doi":"10.1109/RWS.2014.6830074","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830074","url":null,"abstract":"The global positioning system (GPS) has become a standard navigation tool in modern vehicular platforms. The location of the GPS antenna has a direct impact on the overall navigation system performance. In this work, we investigate the effect of shorting the GPS antenna placed on the front windshield of a vehicle to its rooftop GND plane. It is shown that such a connection will improve the gain of the antenna by several dBs.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128625358","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
MMIC-based module-level frequency generation for e-band communication systems 基于mmic的e波段通信系统模块级频率生成
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830102
U. Lewark, J. Antes, M. Kuri, R. Henneberger, A. Tessmann, S. Wagner, A. Leuther, T. Zwick, I. Kallfass
{"title":"MMIC-based module-level frequency generation for e-band communication systems","authors":"U. Lewark, J. Antes, M. Kuri, R. Henneberger, A. Tessmann, S. Wagner, A. Leuther, T. Zwick, I. Kallfass","doi":"10.1109/RWS.2014.6830102","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830102","url":null,"abstract":"We present a PLL stabilized VCO at X-Band frequencies extended by a frequency multiplier-by-eight module forming a variable LO source for E-Band communication systems with enough output power to drive an E-Band mixer without additional post amplification. The module shows a 3-dB output bandwidth from 73 to 85 GHz with a saturated output power of 10 dBm. Together with the VCO module the source features a phase noise of -89 dBc/Hz at 100 kHz offset from the 76.8 GHz carrier.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128743611","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 DC to 2GHz downconverter with image rejection and high blocker tolerance for cognitive radios 一种DC到2GHz的下变频器，具有图像抑制和高阻挡容忍度，适用于认知无线电
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830126
A. Fahim
{"title":"A DC to 2GHz downconverter with image rejection and high blocker tolerance for cognitive radios","authors":"A. Fahim","doi":"10.1109/RWS.2014.6830126","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830126","url":null,"abstract":"An image reject RF filter for wideband receivers is described. This image reject RF filter relies on a complex bandpass filter that can be tuned accurately over a wide frequency. Operation of this filter is demonstrated in a 0.13um CMOS technology and shown to operate from DC to 2GHz. The filter is shown to provide a minimum image rejection ratio of 62 dBc, while providing an OIP3 of at least +30dBm over the frequency band and high blocker level tolerance.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"61 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116759509","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
Universal wideband reconfigurable transceiver with extended frequency range up to 6 GHz 通用宽带可重构收发器扩展频率范围高达6 GHz
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2014-06-12 DOI: 10.1109/RWS.2014.6830124
E. Gonzalez-Rodriguez, H. Maune, Yuliang Zheng, R. Jakoby
{"title":"Universal wideband reconfigurable transceiver with extended frequency range up to 6 GHz","authors":"E. Gonzalez-Rodriguez, H. Maune, Yuliang Zheng, R. Jakoby","doi":"10.1109/RWS.2014.6830124","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830124","url":null,"abstract":"A wireless continuous transmission and reception of signals from 1GHz up to 6GHz is shown. Core functionality of a universal multiband multistandard wideband reconfigurable transceiver is demonstrated. Extension of the frequency range by means of a mixing stage is combined with a wideband signal processor from the baseband up to the RF and vice versa. This concept exploiting the proposed platform is promising to cover more than 7GHz for Tx and 6GHz for Rx.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113989861","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
Protocol analysis of signal detection for deriving minimum isolation distance for frequency recycling under WLAN 无线局域网下频率回收最小隔离距离的信号检测协议分析
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2013-07-10 DOI: 10.1109/RWS.2014.6830120
Masayuki Goto, O. Takyu, T. Fujii, F. Sasamori, S. Handa
{"title":"Protocol analysis of signal detection for deriving minimum isolation distance for frequency recycling under WLAN","authors":"Masayuki Goto, O. Takyu, T. Fujii, F. Sasamori, S. Handa","doi":"10.1109/RWS.2014.6830120","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830120","url":null,"abstract":"The cognitive radio (CR) system is powerful technique for significantly improving the frequency spectrum efficiency. This paper clarifies the minimum distance of the two independent wireless LAN (WLAN) systems for suppressing the mutual interference, where the WLAN system is one of CR systems. We use the two real-time spectrum analyzers for the simultaneous detection of the emitted signals from the two systems. As a result, we detect not only the packet access timing of two systems but also the length of packet. Therefore, the protocol of WLAN system is recognized, so the minimum distance of two systems for spectrum sharing is estimated.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126641958","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
Effect of PAPR reduction to BS cooperation MIMO systems under multi-cell environment 多小区环境下BS合作MIMO系统PAPR降低的影响
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2013-06-13 DOI: 10.1109/RWS.2014.6830118
Ryo Myoenzono, O. Takyu, F. Sasamori, S. Handa
{"title":"Effect of PAPR reduction to BS cooperation MIMO systems under multi-cell environment","authors":"Ryo Myoenzono, O. Takyu, F. Sasamori, S. Handa","doi":"10.1109/RWS.2014.6830118","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830118","url":null,"abstract":"The base station cooperation with the multiple-input multiple-output (BSC-MIMO) is a powerful technique for recovering the bottleneck of cell boundary's user. However, in BSC-MIMO, the harmful co-channel interference (CCI) from the non-cooperative BS is not avoidable. We have clarified that the peak-to-average power ratio (PAPR) of transmitted signal is reduced, so boosting the transmitted signal power causes the large throughput performance. However, in multi-cell environment, the CCI from the other cell is also enlarged by it. Therefore, the PAPR should be controlled for maximizing throughput. This paper evaluates the throughput of BSC-MIMO with the PAPR reduction based on the adaptive RB assignment.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126477367","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
Transmission line replacements for a lumped element reflectionless filter 传输线替换集总元件无反射滤波器
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 1900-01-01 DOI: 10.1109/RWS.2014.6830095
C. Jackson
{"title":"Transmission line replacements for a lumped element reflectionless filter","authors":"C. Jackson","doi":"10.1109/RWS.2014.6830095","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830095","url":null,"abstract":"This paper investigates the possibility of constructing reflectionless filter prototype using transmission lines instead of lumped elements. The motivation for using transmission lines is to allow the filter to be used at significantly higher frequencies. Lumped element resonators can be replaced by open stubs with quarter and half wave lengths. To employ Kuroda identities, a new prototype is introduced by taking advantage of the even and odd mode symmetry of the lumped element filter. Frequency limits and bandwidth ranges will be considered.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"289 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":"124166519","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: 10
A 5–5.8 GHz fully-integrated CMOS PA for WLAN applications 5-5.8 GHz全集成CMOS PA，用于WLAN应用
2014 IEEE Radio and Wireless Symposium (RWS) Pub Date : 1900-01-01 DOI: 10.1109/RWS.2014.6830155
Jeng‐Han Tsai, Hong-Wun Ou-Yang
{"title":"A 5–5.8 GHz fully-integrated CMOS PA for WLAN applications","authors":"Jeng‐Han Tsai, Hong-Wun Ou-Yang","doi":"10.1109/RWS.2014.6830155","DOIUrl":"https://doi.org/10.1109/RWS.2014.6830155","url":null,"abstract":"A 5-5.8 GHz fully-integrated power amplifier is designed and fabricated in TSMC standard 0.18-μm 1P6M CMOS technology. Utilizing a two-way direct shunt combining technique with an odd mode suppression resistor, the CMOS PA achieves a measured maximum saturation output power (Psat) of 23.1 dBm at 5.2 GHz. The measured output 1-dB compression point (OP1dB) is 18.6 dBm and peak power-added efficiency (PAE) is 19.8 % at 5.2 GHz. By using broadband power matching topology, the output power of the CMOS PA is 22.6 ± 0.5 dBm from 5 to 5.8 GHz.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"21 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":"125670378","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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