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A coherent ultra-wideband receiver IC system for WPAN application 一种用于WPAN的相干超宽带接收IC系统
2005 IEEE International Conference on Ultra-Wideband Pub Date : 2005-09-05 DOI: 10.1109/ICU.2005.1569957
Yan Tong, Yuanjin Zheng, Y. Xu
{"title":"A coherent ultra-wideband receiver IC system for WPAN application","authors":"Yan Tong, Yuanjin Zheng, Y. Xu","doi":"10.1109/ICU.2005.1569957","DOIUrl":"https://doi.org/10.1109/ICU.2005.1569957","url":null,"abstract":"An integrated pulse based ultra-wideband (UWB) receiver using a coherent architecture is presented. BPSK modulation of monocycle Gaussian pulses which meet FCC's UWB frequency band (3.1 - 10.6 GHz) is adopted. The received pulses are correlated with template pulses from a local pulse generator. In each period the correlation value is either sampled by a high speed ADC for further signal processing or sent to a comparator to recover the transmitted data. Simulation and primary measurement results show that the receiver can achieve a demodulation rate of 100/220/480 Mbps and consumes 99 mW peak power. The design is based on a 0.18-/spl mu/m CMOS process.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123120024","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: 31
Performance evaluation of high data rate UWB systems based on IEEE 802.15.3 基于IEEE 802.15.3的高数据速率UWB系统性能评估
2005 IEEE International Conference on Ultra-Wideband Pub Date : 2005-09-05 DOI: 10.1109/ICU.2005.1570070
D. Cassioli, R. Giuliano, F. Mazzenga
{"title":"Performance evaluation of high data rate UWB systems based on IEEE 802.15.3","authors":"D. Cassioli, R. Giuliano, F. Mazzenga","doi":"10.1109/ICU.2005.1570070","DOIUrl":"https://doi.org/10.1109/ICU.2005.1570070","url":null,"abstract":"The performance of an UWB system for high data rate transmissions is evaluated in terms of link outage probability and average aggregate network throughput. The network topology is based on a clustered structure, formed by a multitude of piconets coexisting in a given area. The piconets operate in accordance to the IEEE 802.15.3 standard. Two different modulation formats are considered and their performance compared: multiband OFDM (MBO) and direct sequence spread spectrum (DS-SS). Performance parameters are evaluated using an effective semi-analytical procedure that allows us to account for interference due to uncoordinated piconets in the area in realistic propagation conditions. We show that when the operating band of the MBO is restricted to group A, the DS-SS outperforms the MBO. The situation is reversed when the available bands for the MBO increase.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121707107","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: 8
UWB signals as shot noises 超宽带信号是射击噪声
2005 IEEE International Conference on Ultra-Wideband Pub Date : 2005-09-05 DOI: 10.1109/ICU.2005.1570072
A. Ridolfi, M. Win
{"title":"UWB signals as shot noises","authors":"A. Ridolfi, M. Win","doi":"10.1109/ICU.2005.1570072","DOIUrl":"https://doi.org/10.1109/ICU.2005.1570072","url":null,"abstract":"We present a shot-noise based model for a large family of ultrawide bandwidth (UWB) signals. These include time-hopping and direct sequence signaling with pulse position, interval and amplitude modulations. Each specific signal is constructed by adding features to a basic model in a modular, simple, and tractable way. Our work unifies the contributions scattered in the literature and provides a general approach that allows various extensions of previous works. The exact power spectrum is then evaluated using shot-noise spectral theory, which provides a simpler, systematic, and rigorous approach to the spectra evaluation of complex UWB signals. The strength of our methodology is that different features of the model contribute clearly and separately in the resulting spectral expressions.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124897523","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
Cramer-Rao bound for TOA estimations in UWB positioning systems 超宽带定位系统TOA估计的Cramer-Rao界
2005 IEEE International Conference on Ultra-Wideband Pub Date : 2005-09-05 DOI: 10.1109/ICU.2005.1570022
T. Kaiser, Bamrung Tau Sieskul
{"title":"Cramer-Rao bound for TOA estimations in UWB positioning systems","authors":"T. Kaiser, Bamrung Tau Sieskul","doi":"10.1109/ICU.2005.1570022","DOIUrl":"https://doi.org/10.1109/ICU.2005.1570022","url":null,"abstract":"This paper deals with time delay estimation for a UWB positioning system. We consider the a priori model in which the distributions of path gain and the desired time delay are known. Joint probability density functions for both parameters are cast into explicit form. Then, we address parameter estimations based on maximum likelihood as well as maximum a posteriori. The Fisher information matrix (FIM) of the ordinary Cramer-Rao bound (CRB) is available from maximum likelihood criterion. For three possible cases of a priori knowledge, the inherent accuracy are provided by a posteriori CRBs, which can be derived from three possible assumptions. All theoretical results are unconditioned on any specification of UWB pulse and hence are plausible to extend to further performance analysis.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125195158","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: 15
UWB antenna characterization for circuit design 超宽带天线特性电路设计
2005 IEEE International Conference on Ultra-Wideband Pub Date : 2005-09-05 DOI: 10.1109/ICU.2005.1569999
M. Demirkan, R. Spencer
{"title":"UWB antenna characterization for circuit design","authors":"M. Demirkan, R. Spencer","doi":"10.1109/ICU.2005.1569999","DOIUrl":"https://doi.org/10.1109/ICU.2005.1569999","url":null,"abstract":"The equivalent antenna length concept, which is obtained from the measured S-parameters of a 2-antenna network, is used to characterize the frequency-dependent nature of ultra-wideband (UWB) antennas. Analytical expressions are derived for the voltage waveform at the output of a receive antenna and the equivalent isotropically radiated power (EIRP) from a transmit antenna. In addition, a procedure is outlined to model UWB antennas for circuit design purposes without additional knowledge of the antenna physics.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"315 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132596852","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
2D indoor mapping and location-sensing using an impulse radio network 使用脉冲无线电网络的二维室内测绘和位置传感
2005 IEEE International Conference on Ultra-Wideband Pub Date : 2005-09-05 DOI: 10.1049/IC:20060511
Wenyu Guo, N. Filer, S. Barton
{"title":"2D indoor mapping and location-sensing using an impulse radio network","authors":"Wenyu Guo, N. Filer, S. Barton","doi":"10.1049/IC:20060511","DOIUrl":"https://doi.org/10.1049/IC:20060511","url":null,"abstract":"This paper describes a location-sensing technique suitable for impulse radio ad-hoc networks operating indoors. This technique has similarities to hyperbolic navigation and bistatic radar, but it does not use any fixed references. Given the channel impulse responses (CIRs) of transmitter/receiver pairs communicated around the network, we show that this technique can successfully map typical indoor environments comprising two and four walls in relation to communicating radios. The technique can be extended to solve more complex scenarios.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114858933","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
Cognospectrum: spectrum adaptation and evolution in cognitive ultra-wideband radio 认知超宽带无线电的频谱适应与演化
2005 IEEE International Conference on Ultra-Wideband Pub Date : 2005-09-05 DOI: 10.1109/ICU.2005.1570076
Xiaofei Zhou, K. Y. Yazdandoost, Honggang Zhang, I. Chlamtac
{"title":"Cognospectrum: spectrum adaptation and evolution in cognitive ultra-wideband radio","authors":"Xiaofei Zhou, K. Y. Yazdandoost, Honggang Zhang, I. Chlamtac","doi":"10.1109/ICU.2005.1570076","DOIUrl":"https://doi.org/10.1109/ICU.2005.1570076","url":null,"abstract":"Cognitive ultra wideband (UWB) radio is proposed to exploit the advantages of combining cognitive radio with ultra wideband technologies. In order to realize cognitive UWB radio, multiple pulse waveform adaptations have been investigated for producing the expected spectral notches while matching with FCC spectral mask and other frequency regulation requirements. To verify the pulse distortion effect of UWB antenna on cognitive UWB radio, the generated pulse waveform is further transferred through an actual UWB antenna. Furthermore, pre-equalization scheme is considered before antenna transmission, so as to compensate the pulse distortion effects.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117050341","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: 22
Ultra wideband signal sources for interference measurements 用于干扰测量的超宽带信号源
2005 IEEE International Conference on Ultra-Wideband Pub Date : 2005-09-05 DOI: 10.1109/ICU.2005.1570060
D. Ball, P. Charlebois, W. Lauber
{"title":"Ultra wideband signal sources for interference measurements","authors":"D. Ball, P. Charlebois, W. Lauber","doi":"10.1109/ICU.2005.1570060","DOIUrl":"https://doi.org/10.1109/ICU.2005.1570060","url":null,"abstract":"Two prototype ultra wideband (UWB) signal sources using the burst CW concept to generate the UWB pulses have been developed and tested. The sources can be used for testing the possibility of interference to communications equipment by UWB signals. The first source has variable pulse width and pulse repetition frequency as well as a variable centre frequency. The second source has a dithering circuit, which 'whitens' the spectral output.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129581671","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
Development of ultra-wideband LTCC filter 超宽带LTCC滤波器的研制
2005 IEEE International Conference on Ultra-Wideband Pub Date : 2005-09-05 DOI: 10.1109/ICU.2005.1570006
Ching‐Wen Tang, Chien-Chung Tseng, Huei-Hung Liang, Sheng-Fu You
{"title":"Development of ultra-wideband LTCC filter","authors":"Ching‐Wen Tang, Chien-Chung Tseng, Huei-Hung Liang, Sheng-Fu You","doi":"10.1109/ICU.2005.1570006","DOIUrl":"https://doi.org/10.1109/ICU.2005.1570006","url":null,"abstract":"A novel method to realize the ultra-wideband filter with the low temperature co-fired ceramic (LTCC) technology has been proposed. This ultra-wideband LTCC filter was implemented using a four-resonator bandpass filter accompany with inductance feedback. According to the above mentioned method, a couple of transmission zeros can be generated at two-side of passband's skirt of the ultra-wideband filter. This filter also can increase the sensitivity and linearity of the wireless communication system. The advantage of multi-layered structure may shrink the circuit size. The designed prototype filters, center frequencies around 4 GHz were selected and passband frequency is between 2.96-4.91 GHz. The bandwidth ratio is 48.75%. The fabricated ceramic sheet with dielectric constant of 7.8, and the size of filter is 119 mil /spl times/ 79 mil /spl times/ 33.72 mil.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129641739","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: 12
Analysis of equalization for DS-UWB systems DS-UWB系统的均衡分析
2005 IEEE International Conference on Ultra-Wideband Pub Date : 2005-09-05 DOI: 10.1109/ICU.2005.1569978
A. Parihar, L. Lampe, R. Schober, C. Leung
{"title":"Analysis of equalization for DS-UWB systems","authors":"A. Parihar, L. Lampe, R. Schober, C. Leung","doi":"10.1109/ICU.2005.1569978","DOIUrl":"https://doi.org/10.1109/ICU.2005.1569978","url":null,"abstract":"In this paper, we analyze equalization for direct sequence based ultra-wideband (DS-UWB) systems using RAKE combining at the receiver. To this end, we consider the effective discrete-time impulse response at the RAKE combiner output and study the distribution of the zeros of the corresponding transfer function. Thereby, we apply the IEEE 802.15.3a standard channel model. Our findings suggest that linear equalization (LE) is well suited for the lower data rate modes of DS-UWB systems, whereas decision-feedback equalization (DFE) is favorably applied for high-data rate modes. These conclusions are confirmed by simulation results. It is also shown that LE and DFE perform relatively close to the matched filter bound limit.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128226406","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: 24
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