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2014 IEEE International Wireless Symposium (IWS 2014)最新文献

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An improved model of vehicle radar for multi-target based on stepped frequency pulse radar 基于阶跃频率脉冲雷达的车载多目标雷达改进模型
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864230
Zhenyi Liu, F. Bien
{"title":"An improved model of vehicle radar for multi-target based on stepped frequency pulse radar","authors":"Zhenyi Liu, F. Bien","doi":"10.1109/IEEE-IWS.2014.6864230","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864230","url":null,"abstract":"The vehicle radars should be able to detect all stationary or moving objects inside the observation area with short measurement time, high range and velocity resolution, and cost efficiency. To achieve this, an improved model called Double-SFPW based on SFPW is described, it transmits two stepped frequency pulses with a frequency shift and a time difference, its performance is better than conventional LFMCW radar on multi-targets with a shorter measurement time, higher resolution, and solves the Doppler shift and frequency spread over of SFPW, in addition, Double-SFPW has a simple structure based on pulse radar, so it's also very cost efficient.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127913657","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: 6
Wireless network coding via MAC/PHY: Design and implementation on USRP 基于MAC/PHY的无线网络编码:USRP的设计与实现
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864237
Fengyue Gao, Kui Xu, Dongmei Zhang, Youyun Xu
{"title":"Wireless network coding via MAC/PHY: Design and implementation on USRP","authors":"Fengyue Gao, Kui Xu, Dongmei Zhang, Youyun Xu","doi":"10.1109/IEEE-IWS.2014.6864237","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864237","url":null,"abstract":"In this work, we present an implementation of a two-way decode-and-forward relaying scheme using network coding (NC) in Software-Defined Radio (SDR). We describe a specific medium access (MAC) protocol based on a TDMA scheme to establish robust synchronization between the terminals implemented within the open-source GNU Software Radio (GNU Radio) platform and fitted for operation with an Ettus Universal Software Radio Peripheral (USRP) N210. Our implementation requires moderate modifications of the packet design of PHY. We validate and verify our implementation by means of representative throughput performance measurements. Our results show that network coding increases system throughput-gain.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130996361","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 linear resistive single side-band (SSB) up-converter for E-band wireless communication 一种用于e波段无线通信的线性电阻式单边带(SSB)上变频器
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864238
Yu Ye, Jian Zhang, R. Tong, Xiaowei Sun
{"title":"A linear resistive single side-band (SSB) up-converter for E-band wireless communication","authors":"Yu Ye, Jian Zhang, R. Tong, Xiaowei Sun","doi":"10.1109/IEEE-IWS.2014.6864238","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864238","url":null,"abstract":"In this paper, a resistive single side-band (SSB) up-converter implemented for high speed E-band wireless communication is presented. The SSB up-converter consists of two resistive IQ mixer cells, on-chip Marchand balun and two Lange couplers for quadrature LO signal generation. The Marchand balun is designed with common-mode rejection to achieve better in-band amplitude and phase balanced behavior. The external IF quadrature hybrids avoid the bulk passive circuits in MMIC chip. Besides, they will ease the implementation of up-converter with lower sideband (LSB) or upper side-band (USB) suppression. The measured results show conversion loss of 11 dB and sideband suppression higher than 20 dB from 75 to 90 GHz. LO to RF isolation and RF output 1dB compression point have been measured to be more than 30 dB and -4 dBm, respectively. The resistive SSB up converter consumes no DC current and the chip size is only 2 × 1.5 mm2.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130775719","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
Impact of temperature on the impedance of microwave and RF PIN diodes 温度对微波和射频PIN二极管阻抗的影响
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864228
R. Caverly
{"title":"Impact of temperature on the impedance of microwave and RF PIN diodes","authors":"R. Caverly","doi":"10.1109/IEEE-IWS.2014.6864228","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864228","url":null,"abstract":"A closed form linear electrothermal model for the PIN diode showing it frequency and temperature behavior is presented. The model uses PIN diode electrical parameters such as DC forward current, I-region thickness and the temperature-dependent mobility and carrier lifetime as parameters. Impedance behavior is shown over frequency and temperature as examples of the mathematical model and the model is verified with experimental. Good agreement is seen between the model and measured data. The results show that the forward bias impedance is strongly dependent on the carrier lifetime temperature coefficient that has been shown to be a function of diode cross-section and surface passivation.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127895236","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 chirp-UWB transceiver with embedded bulk PPM for energy efficient data transmission 啁啾-超宽带收发器，内置大量PPM，用于节能数据传输
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864217
Yu Li, Fei Chen, W. Rhee, Zhihua Wang
{"title":"A chirp-UWB transceiver with embedded bulk PPM for energy efficient data transmission","authors":"Yu Li, Fei Chen, W. Rhee, Zhihua Wang","doi":"10.1109/IEEE-IWS.2014.6864217","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864217","url":null,"abstract":"This paper describes an energy efficient wideband FM transceiver system by introducing a chirp-UWB transmission with bulk pulse-position modulation (PPM). In contrast to conventional chirp modulated UWB transceivers that transmit only 1 bit in a pulse clock, the proposed position embedded transceiver manages to transmit 1.3 bit on average in one pulse clock period, improving spectral efficiency by 30%. The transceiver designed in 0.18μm CMOS achieves the energy efficiency of 1.5nJ/b for the transmitter and 23nJ/b for the receiver at the data rate of 1.6Mb/s.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127908426","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
High selectivity wideband differential bandpass filter with wideband common mode suppression using Marchand balun 高选择性宽带差分带通滤波器与宽带共模抑制使用马尔尚平衡
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864180
W. Feng, W. Che, Q. Xue
{"title":"High selectivity wideband differential bandpass filter with wideband common mode suppression using Marchand balun","authors":"W. Feng, W. Che, Q. Xue","doi":"10.1109/IEEE-IWS.2014.6864180","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864180","url":null,"abstract":"A novel compact high selectivity wideband differential bandpass filter with wideband common mode suppression using Marchand balun is presented in this paper. Open/shorted coupled lines and stubs are used to improve the selectivity for the differential mode and common mode suppression. The demonstrated filter with a compact size of 24 mm × 12 mm exhibits a fractional bandwidth of 53% centered at 3.0 GHz and 13 dB common-mode suppression from 0 to 9 GHz (3f0).","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115445997","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: 6
Relay selection in distributed alamouti space-time block coded networks 分布式alamouti空时分组编码网络中的中继选择
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864215
Dokheyl M. Al-Qahtani, A. Al-Sanie
{"title":"Relay selection in distributed alamouti space-time block coded networks","authors":"Dokheyl M. Al-Qahtani, A. Al-Sanie","doi":"10.1109/IEEE-IWS.2014.6864215","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864215","url":null,"abstract":"Alamouti distributed orthogonal space-time block coding has emerged as a diversity scheme that can achieve high spectral efficiency over a wireless networks. This paper employs the relay selection to maximize the received signal-to-noise ratio of Alamouti distributed orthogonal space-time block coding (Al-DSTC) in a two-relay networks. It makes collective use of the Alamouti distributed orthogonal space-time block coding and relay selection to implement an effective scheme. It is shown in this work that the proposed scheme obtains full diversity order and provides an additional array gain compared to conventional Al-DSTC and cooperative beamforming. The receiver can always find the optimal selected relay by exhaustive search where the number of relays is only two. Our results show that the proposed scheme preserves full diversity order and provide additional array gain by less transmit power when compared with other cooperative protocols. Also, the proposed scheme increases life time of the relay since 50% of the time the relay is off.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125905051","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
ESD protection design for microwave/millimeter wave low-noise amplifiers 微波/毫米波低噪声放大器的ESD防护设计
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864242
M. Tsai, S. Hsu
{"title":"ESD protection design for microwave/millimeter wave low-noise amplifiers","authors":"M. Tsai, S. Hsu","doi":"10.1109/IEEE-IWS.2014.6864242","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864242","url":null,"abstract":"Different ESD design topologies suitable for microwave/millimeter wave low-noise amplifiers (LNAs) are reviewed, and the design tradeoffs and limitations of each topology are also discussed. In addition, a V-band LNA using the proposed Pi-type ESD block is demonstrated in 65-nm CMOS. A series ESD inductor together with two shunt ESD diodes and an bonding (probing) pad form a Pi-type network, acting like an ideal wideband 50-ohm transmission line with a loss of only 0.6 dB at 60 GHz. Under a power consumption of 27 mW, the ESD-protected LNA presents a 4.1-dB NF and 18.5-dB power gain at 60 GHz, respectively with a 3-dB bandwidth up to 7.7 GHz. The measured results also demonstrate a 2.5-kV Human-Body-Model (HBM) ESD protection. This LNA shows excellent FoMs compared with recently published results in a similar frequency range.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131500993","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
Ultra-thin spoof surface plasmonic structure and its application to bandpass filter design 超薄欺骗表面等离子体结构及其在带通滤波器设计中的应用
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864241
Xiaoyong Liu, Junming Zhao, T. Jiang, Yijun Feng
{"title":"Ultra-thin spoof surface plasmonic structure and its application to bandpass filter design","authors":"Xiaoyong Liu, Junming Zhao, T. Jiang, Yijun Feng","doi":"10.1109/IEEE-IWS.2014.6864241","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864241","url":null,"abstract":"In this paper, the dispersions and electromagnetic wave transmission of higher-order modes in a kind of ultra-thin spoof surface plasmonic structures, the conformal surface plasmon (CSP) structure, have been explored at microwave frequency. The transmission spectrum shows a multi-passband characteristic. To eliminate the radiation loss associated with the higher-order modes, a ground plane is introduced to the CSP structure, and it is found that the dispersion curves and transmission spectrum exhibit the similar feature as that of the CSP structure without ground, but with much less radiation loss. The multiband transmission characteristic of the CSP structure has also been applied to design bandpass filter (BPF). It is found that by combining CSP structures with different groove depth the passband of the BPF could be tuned. The designed BPFs have been validated with both the full-wave simulations and the measurements on fabricated prototype at microwave frequency.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134394707","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 second-order multi-bit ΔΣ TDC for high resolution IR-UWB radar systems 用于高分辨率IR-UWB雷达系统的二阶多比特ΔΣ TDC
2014 IEEE International Wireless Symposium (IWS 2014) Pub Date : 2014-03-24 DOI: 10.1109/IEEE-IWS.2014.6864236
Yiyu Shen, Xican Chen, W. Rhee, Zhihua Wang
{"title":"A second-order multi-bit ΔΣ TDC for high resolution IR-UWB radar systems","authors":"Yiyu Shen, Xican Chen, W. Rhee, Zhihua Wang","doi":"10.1109/IEEE-IWS.2014.6864236","DOIUrl":"https://doi.org/10.1109/IEEE-IWS.2014.6864236","url":null,"abstract":"This paper describes a higher-order ΔΣ time-digital converter (TDC) design for high resolution UWB radar systems. To overcome “cross boundary” issue and in 1-bit first-order ΔΣ TDC, a 3-bit second-order ΔΣ TDC is proposed. For digital-intensive robust phase tracking, a dual delay lock loop (DLL) is adopted in which a digital phase rotator is designed to provide an unlimited phase capture range. The analysis and simulation results show that the proposed ΔΣ TDC enable high ranging resolution with optimal coefficient for IR-UWB radar system.","PeriodicalId":225547,"journal":{"name":"2014 IEEE International Wireless Symposium (IWS 2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131221239","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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