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2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580)最新文献

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On the BER performance of pulse-position-modulation UWB radio in multipath channels 脉冲位置调制超宽带无线电在多径信道中的误码率性能研究
2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580) Pub Date : 2002-05-21 DOI: 10.1109/UWBST.2002.1006355
L. Ge, Guangrong Yue, S. Affes
{"title":"On the BER performance of pulse-position-modulation UWB radio in multipath channels","authors":"L. Ge, Guangrong Yue, S. Affes","doi":"10.1109/UWBST.2002.1006355","DOIUrl":"https://doi.org/10.1109/UWBST.2002.1006355","url":null,"abstract":"The impact of multipath propagation on ultra wide band (UWB) radio, which is carrier free, is quite different from that on conventional radio. This paper presents a theoretical analysis of the bit error rate (BER) performance of binary pulse-position-modulation (PPM) UWB radio in multipath channels. The BER formula is derived. Particular attention is paid to the effect of the propagation time-delay on the BER performance. It is also noted that, for the PPM scheme, the multipath propagation time-delay may lead to unbalanced BERs over \"0\"-\"1\" in some particular multipath channels.","PeriodicalId":272053,"journal":{"name":"2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125482458","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: 47
A statistical path loss model for in-home UWB channels 一种家用超宽带信道的统计路径损耗模型
2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580) Pub Date : 2002-05-21 DOI: 10.1109/UWBST.2002.1006319
Vahid Tarokh, S. Ghassemzadeh, Rittwik Jana, C. W. Rice, William Turin
{"title":"A statistical path loss model for in-home UWB channels","authors":"Vahid Tarokh, S. Ghassemzadeh, Rittwik Jana, C. W. Rice, William Turin","doi":"10.1109/UWBST.2002.1006319","DOIUrl":"https://doi.org/10.1109/UWBST.2002.1006319","url":null,"abstract":"This paper describes a simple statistical model for evaluating the path loss in residential environments. It consists of detailed characterization of path loss model parameters of ultra-wideband band (UWB) signals having a nominal center frequency of 5 GHz. The proposed statistical path loss model is for the in-home channel and it is based on over 300,000 frequency response measurements. Probability distributions of the model parameters for different locations are presented. Also, time domain results such as RMS delay spread and percent of captured power are presented.","PeriodicalId":272053,"journal":{"name":"2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580)","volume":"219 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115974933","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: 274
Integrated GPS and UWB navigation system: (motivates the necessity of non-interference) GPS和UWB组合导航系统:(激发不干扰的必要性)
2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580) Pub Date : 2002-05-21 DOI: 10.1109/UWBST.2002.1006332
G. Opshaug, P. Enge
{"title":"Integrated GPS and UWB navigation system: (motivates the necessity of non-interference)","authors":"G. Opshaug, P. Enge","doi":"10.1109/UWBST.2002.1006332","DOIUrl":"https://doi.org/10.1109/UWBST.2002.1006332","url":null,"abstract":"We compare the positioning performance of GPS and DGPS to that of GPS/DGPS integrated with non-interfering UWB transponders. Simulations of a simple test case predict 15% horizontal accuracy improvement of GPS+UWB over stand-alone GPS and 25% improvement of DGPS+UWB over pure DGPS.","PeriodicalId":272053,"journal":{"name":"2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125861710","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: 19
Radiation efficiency of UWB antennas 超宽带天线的辐射效率
2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580) Pub Date : 2002-05-21 DOI: 10.1109/UWBST.2002.1006392
H. Schantz
{"title":"Radiation efficiency of UWB antennas","authors":"H. Schantz","doi":"10.1109/UWBST.2002.1006392","DOIUrl":"https://doi.org/10.1109/UWBST.2002.1006392","url":null,"abstract":"This paper describes a version of the \"Wheeler (1959) Cap method\" modified for evaluating the efficiency of ultrawideband (UWB) antennas and discusses the application of this method to a Time Domain Corporation BroadSpec/spl trade/ Model 102 antenna. This antenna exhibits a radiation efficiency better than 90% from 1.5 GHz to above 6.0 GHz.","PeriodicalId":272053,"journal":{"name":"2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114960770","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: 66
Multiple pulse generator for ultra-wideband communication using Hermite polynomial based orthogonal pulses 基于埃尔米特多项式的正交脉冲超宽带通信多脉冲发生器
2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580) Pub Date : 2002-05-21 DOI: 10.1109/UWBST.2002.1006316
L. Michael, M. Ghavami, R. Kohno
{"title":"Multiple pulse generator for ultra-wideband communication using Hermite polynomial based orthogonal pulses","authors":"L. Michael, M. Ghavami, R. Kohno","doi":"10.1109/UWBST.2002.1006316","DOIUrl":"https://doi.org/10.1109/UWBST.2002.1006316","url":null,"abstract":"We propose a circuit for generation of modified Hermite polynomial functions for use in impulse radio communications. Simultaneous generation of pulses of differing order is developed, reducing circuit complexity. Pulses are produced by applying modifications to Hermite polynomials. Pulses have the properties of orthogonality and not changing their pulse width and pulse bandwidth significantly dependent on pulse order, or under the differentiation effect of the transmitter or receiver antenna. The usefulness of these pulses applied to a multi-user system by orthogonal pulse modulation is shown by comparison with conventional pulse position modulation by computer simulation.","PeriodicalId":272053,"journal":{"name":"2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130726813","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: 160
An insight into UWB interference from a shot noise perspective 从散点噪声的角度分析超宽带干扰
2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580) Pub Date : 2002-05-21 DOI: 10.1109/UWBST.2002.1006381
R. Fontana
{"title":"An insight into UWB interference from a shot noise perspective","authors":"R. Fontana","doi":"10.1109/UWBST.2002.1006381","DOIUrl":"https://doi.org/10.1109/UWBST.2002.1006381","url":null,"abstract":"This paper considers the effects of UWB interference on narrowband systems from the perspective of that of a shot noise random process. Shot noise is perhaps best known as the time-dependent fluctuations in electrical current caused by the discrete nature of the electron charge in such devices as tunnel diodes, Schottky barrier diodes and P-N junctions. Here, the discrete nature of the UWB-excited impulse response of a victim receiver is shown, under mild conditions, to behave as shot noise. The statistical properties of the receiver output are then compared with measurement results obtained to date by the National Telecommunications and Information Administration (NTIA), Stanford University and the Department of Transportation (DOT), and others.","PeriodicalId":272053,"journal":{"name":"2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133945649","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: 32
Pulse spectrum optimization for ultra-wideband communication 用于超宽带通信的脉冲频谱优化
2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580) Pub Date : 2002-05-21 DOI: 10.1109/UWBST.2002.1006313
C. Corral, S. Sibecas, S. Emami, G. Stratis
{"title":"Pulse spectrum optimization for ultra-wideband communication","authors":"C. Corral, S. Sibecas, S. Emami, G. Stratis","doi":"10.1109/UWBST.2002.1006313","DOIUrl":"https://doi.org/10.1109/UWBST.2002.1006313","url":null,"abstract":"Ultra-wideband (UWB) communications employ very short pulses with different modulation that result in extremely wideband spectra for high data-rate links. These spectra are a function of both the spreading operation as well as the pulse shapes. We propose a pulse spectrum optimization technique based on classical filters. Non-ideal impulse characteristics are then considered and the optimum pulse derived for either minimal energy (highest spectral bandwidth). The motivation is to show that filtered pulses can achieve significant spectral control in direct baseband UWB signals for high data-rate communications.","PeriodicalId":272053,"journal":{"name":"2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580)","volume":"307 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134054690","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: 53
A novel approach to in-band interference mitigation in ultra wideband radio systems 一种超宽带无线电系统带内干扰抑制的新方法
2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580) Pub Date : 2002-05-21 DOI: 10.1109/UWBST.2002.1006379
E. Baccarelli, M. Biagi, L. Taglione
{"title":"A novel approach to in-band interference mitigation in ultra wideband radio systems","authors":"E. Baccarelli, M. Biagi, L. Taglione","doi":"10.1109/UWBST.2002.1006379","DOIUrl":"https://doi.org/10.1109/UWBST.2002.1006379","url":null,"abstract":"Ultra wideband (UWB) radio transmission is a very important topic and, at present, a lot of work is devoted to increasing the use of this technology. In this regard, a crucial point is to evaluate performance loss induced by the in-band interference generated by concurrent services (\"foreign services\") to try to limit it. We present a novel algorithm to estimate and suppress an external interference in UWB systems so as to increase the SIR (signal-to-interference ratio) and thus to achieve performance near to that of interference-free UWB systems.","PeriodicalId":272053,"journal":{"name":"2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132790299","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: 43
Generalized fading channel model with application to UWB 广义衰落信道模型及其在超宽带中的应用
2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580) Pub Date : 2002-05-21 DOI: 10.1109/UWBST.2002.1006309
Fang Zhu, Zhiqiang Wu, C. Nassar
{"title":"Generalized fading channel model with application to UWB","authors":"Fang Zhu, Zhiqiang Wu, C. Nassar","doi":"10.1109/UWBST.2002.1006309","DOIUrl":"https://doi.org/10.1109/UWBST.2002.1006309","url":null,"abstract":"To date, a number of statistical UWB channel models have been proposed. However, when compared with measurement data, inconsistencies are observed between theoretical model and practical measurement. In this paper, a novel statistical UWB channel model is proposed based on current measurement results, one which overcomes the inconsistencies of previous modelings. Some key features of the proposed model include: (1) the arrival time of each resolvable path is calculated using a 2-state Markov model-each state of the model characterizes a different likelihood of arrival based on a unique Poisson distribution (this accounts for the clustering property of paths observed in UWB channel measurements), and (2) individual multipath components demonstrate powers that follow a gamma distribution with an average power determined by an exponential decay. Furthermore, the proposed channel model represents a generalized model. By simply updating the initial parameter setting, other commonly used channel models (both narrowband and wideband) can be derived from our channel model.","PeriodicalId":272053,"journal":{"name":"2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114524322","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: 47
A statistical model for the small-scale multipath fading characteristics of ultra wideband indoor channel 超宽带室内信道小尺度多径衰落特性的统计模型
2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580) Pub Date : 2002-05-21 DOI: 10.1109/UWBST.2002.1006323
Honggang Zhang, T. Udagawa, T. Arita, M. Nakagawa
{"title":"A statistical model for the small-scale multipath fading characteristics of ultra wideband indoor channel","authors":"Honggang Zhang, T. Udagawa, T. Arita, M. Nakagawa","doi":"10.1109/UWBST.2002.1006323","DOIUrl":"https://doi.org/10.1109/UWBST.2002.1006323","url":null,"abstract":"A new kind of statistical distribution model is proposed to study the small-scale multipath fading characteristics of ultra wideband (UWB) indoor channel, taking into account its unique feature of high resolution in the delay domain. According to this model, a series of analytical expressions called as POCA-NAZU fading distributions are developed. Although POCA-NAZU fading is originally investigated for the propagation scenario with a finite number of indoor scatterers, it also reflects much well the actual physical mechanism of indoor UWB propagation. The comparisons of POCA-NAZU fading with conventional Rayleigh and Ricean fading are provided as well.","PeriodicalId":272053,"journal":{"name":"2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122643385","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: 35
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