发布求助
文献互助 智能选刊 最新文献

Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.最新文献

筛选
英文 中文
Low-complexity ICI suppression for OFDM over time- and frequency-selective Rayleigh fading channels 时间和频率选择性瑞利衰落信道OFDM的低复杂度ICI抑制
Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002. Pub Date : 2002-11-03 DOI: 10.1109/ACSSC.2002.1197089
Xiaodong Cai, G. Giannakis
{"title":"Low-complexity ICI suppression for OFDM over time- and frequency-selective Rayleigh fading channels","authors":"Xiaodong Cai, G. Giannakis","doi":"10.1109/ACSSC.2002.1197089","DOIUrl":"https://doi.org/10.1109/ACSSC.2002.1197089","url":null,"abstract":"While rapid variations of the fading channel cause intercarrier interference (ICI) in OFDM, thereby degrading its performance considerably, they also introduce temporal diversity, which can be exploited to improve the performance. We first derive a matched filter bound (MFB) for OFDM transmissions over doubly-selective Rayleigh fading channels, which benchmarks the best possible performance if ICI is completely cancelled without noise enhancement. We then develop low-complexity MMSE and DFE receivers for ICI suppression. Simulations show that the DFE receiver can collect significant gains of ICI-impaired OFDM with affordable complexity.","PeriodicalId":284950,"journal":{"name":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128218799","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: 65
Gaussian radial basis functions and indexed families of functionals 高斯径向基函数和索引泛函族
Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002. Pub Date : 2002-11-03 DOI: 10.1109/ACSSC.2002.1197316
I. Sandberg
{"title":"Gaussian radial basis functions and indexed families of functionals","authors":"I. Sandberg","doi":"10.1109/ACSSC.2002.1197316","DOIUrl":"https://doi.org/10.1109/ACSSC.2002.1197316","url":null,"abstract":"In this paper, we report on results concerning the capabilities of Gaussian radial basis function networks in the setting of inner product spaces that need not be finite dimensional. Specifically, we show that important indexed families of functionals can be uniformly approximated with the approximation uniform also with respect to the index. Applications are described concerning the classification of signals and the synthesis of reconfigurable classifiers.","PeriodicalId":284950,"journal":{"name":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127240368","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
Combined source-channel coding for a power and bandwidth constrained noisy channel with application to progressive image transmission 功率和带宽受限噪声信道的联合信源信道编码及其在渐进图像传输中的应用
Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002. Pub Date : 2002-11-03 DOI: 10.1109/ACSSC.2002.1197190
N. Raja, Zixiang Xiong, M. Fossorier
{"title":"Combined source-channel coding for a power and bandwidth constrained noisy channel with application to progressive image transmission","authors":"N. Raja, Zixiang Xiong, M. Fossorier","doi":"10.1109/ACSSC.2002.1197190","DOIUrl":"https://doi.org/10.1109/ACSSC.2002.1197190","url":null,"abstract":"In this paper, combined source-channel coding for a power and bandwidth constrained channel is studied, with application to progressive image transmission. For a given power constrained and bandwidth constrained Gaussian communication channel, we consider the optimum coded modulation scheme among a predetermined set of signaling constellations when the performance is measured by end-to-end average distortion. This scheme particularly fits progressive source coding in conjunction with unequal error protection.","PeriodicalId":284950,"journal":{"name":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130176684","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
Gaussian approximations for the capacity of MIMO Rayleigh fading channels MIMO瑞利衰落信道容量的高斯近似
Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002. Pub Date : 2002-11-03 DOI: 10.1109/ACSSC.2002.1197254
A. Kamath, B. Hughes, X. Yu
{"title":"Gaussian approximations for the capacity of MIMO Rayleigh fading channels","authors":"A. Kamath, B. Hughes, X. Yu","doi":"10.1109/ACSSC.2002.1197254","DOIUrl":"https://doi.org/10.1109/ACSSC.2002.1197254","url":null,"abstract":"We consider the asymptotic behavior of the capacity of multiple antenna Rayleigh fading channels in the limit as the transmit and receive arrays become large. We show that the capacity random variable has a limiting Gaussian distribution, and give closed form formulas for its mean and variance when the arrays are uncorrelated. We also derive a more general formula for the variance in terms of the ergodic capacity which is applicable when either the transmit or the receive arrays are correlated. These results enable us to derive the first asymptotic formula for outage capacity, as well as a sharper estimate of the error in previously reported asymptotic formulas for ergodic capacity. Although these formulas are asymptotic, we show by simulations that they are often quite accurate, even for relatively small arrays.","PeriodicalId":284950,"journal":{"name":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","volume":"27 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129134838","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: 40
Optimum joint transmit-receive linear processing for vectored DSL transmission with QoS requirements 具有QoS要求的矢量DSL传输的最优联合收发线性处理
Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002. Pub Date : 2002-11-03 DOI: 10.1109/ACSSC.2002.1197212
D. Palomar, M. Lagunas, J. Cioffi
{"title":"Optimum joint transmit-receive linear processing for vectored DSL transmission with QoS requirements","authors":"D. Palomar, M. Lagunas, J. Cioffi","doi":"10.1109/ACSSC.2002.1197212","DOIUrl":"https://doi.org/10.1109/ACSSC.2002.1197212","url":null,"abstract":"A digital subscriber line (DSL) system is considered, in which a subset of the twisted-pair copper wires within a bundle can perform a joint processing at both sides of the communication system (e.g., links between central offices and remote terminals or between central offices and private networks). The DSL channel is treated as a multi-input multi-output (MIMO) system over which many substreams are established. It is assumed that the signal constellation to be used at each substream is given with a corresponding quality of service (QoS) constraint, e.g., to guarantee a certain error probability. The aim was to optimally design joint transmit-receive linear processing to satisfy the QoS requirements with minimum transmit power. A novel multi-level water-filling algorithm is proposed to solve the problem very efficiently in practice. Numerical results were obtained from simulations using realistic DSL MIMO channel models recently developed.","PeriodicalId":284950,"journal":{"name":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132146496","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
An efficient implementation for DMT-based full-duplex DSL modems 基于dmt的全双工DSL调制解调器的有效实现
Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002. Pub Date : 2002-11-03 DOI: 10.1109/ACSSC.2002.1196932
R. Sonalkar, Qu Jin
{"title":"An efficient implementation for DMT-based full-duplex DSL modems","authors":"R. Sonalkar, Qu Jin","doi":"10.1109/ACSSC.2002.1196932","DOIUrl":"https://doi.org/10.1109/ACSSC.2002.1196932","url":null,"abstract":"The paper describes a two-stage echo canceler designed for a full-duplex, discrete multi-tone (DMT) based digital subscriber loop (DSL) modem. The two-stage feature is incorporated to reduce the dynamic range of the input to the FFT processor. In addition, fast convolution with overlap-save is used for reducing the computation load. The proposed DMT-specific approach makes use of FFTs available within the DMT structure at the transmitter. Simulation results demonstrate the reduction in processor-word size requirement that can be obtained by the two-stage approach. Analytical results show the reduction in computation load that results as a consequence of the fast-convolution and DMT-specific FFT-reuse implementation.","PeriodicalId":284950,"journal":{"name":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130947744","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
SAGE-based multiuser detection for multirate DS/CDMA systems 多速率DS/CDMA系统中基于sage的多用户检测
Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002. Pub Date : 2002-11-03 DOI: 10.1109/ACSSC.2002.1197014
A. De Maio, R. Episcopo
{"title":"SAGE-based multiuser detection for multirate DS/CDMA systems","authors":"A. De Maio, R. Episcopo","doi":"10.1109/ACSSC.2002.1197014","DOIUrl":"https://doi.org/10.1109/ACSSC.2002.1197014","url":null,"abstract":"We consider the problem of multiuser detection for synchronous multirate DS/CDMA systems. We assume that each user may transmit at one out of S available data-rates. Thus, we devise and assess a novel multiuser receiver based on the space alternating generalized expectation-maximization (SAGE) algorithm. Interestingly, the resulting algorithm has an acceptable computational complexity and, in general, outperforms several linear multirate receivers.","PeriodicalId":284950,"journal":{"name":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129194528","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
Alternating minimization algorithms for transmission tomography using energy detectors 使用能量探测器的透射层析成像交替最小化算法
Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002. Pub Date : 2002-11-03 DOI: 10.1109/ACSSC.2002.1197165
J. O’Sullivan, D. Snyder, B. Whiting
{"title":"Alternating minimization algorithms for transmission tomography using energy detectors","authors":"J. O’Sullivan, D. Snyder, B. Whiting","doi":"10.1109/ACSSC.2002.1197165","DOIUrl":"https://doi.org/10.1109/ACSSC.2002.1197165","url":null,"abstract":"Expectation-minimization algorithms for transmission tomography are extended to account for detectors that are modeled as integrating the energy of the incident X-ray photons. The resulting algorithm is guaranteed to monotonically increase the log likelihood functional. Both the expectation step and the maximization step are given in closed form. The formulation is general enough that it can be extended to other energy-dependent models for the detectors.","PeriodicalId":284950,"journal":{"name":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125419683","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 new method for blind identification of FIR channels based almost exclusively on second order statistics 一种几乎完全基于二阶统计量的FIR信道盲识别新方法
Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002. Pub Date : 2002-11-03 DOI: 10.1109/ACSSC.2002.1197267
E. Alameda-Hernandez, D. McLernon, M. Carrión
{"title":"A new method for blind identification of FIR channels based almost exclusively on second order statistics","authors":"E. Alameda-Hernandez, D. McLernon, M. Carrión","doi":"10.1109/ACSSC.2002.1197267","DOIUrl":"https://doi.org/10.1109/ACSSC.2002.1197267","url":null,"abstract":"Here we show that by using second-order statistics (SOS) of a system output all the spectrally equivalent (SE) systems can be derived, and the correct phase can then be chosen by applying appropriately non-linear techniques such as cumulants. In this paper, a new method is proposed that first extracts higher-order statistics (HOS) information (i.e. phase) and then computes directly the true system using only SOS, thus avoiding searching the whole SE set. This new approach depends minimally on HOS, thus avoiding the well-understood limitations of HOS calculations. Finally, comparisons are made with similar approaches through both simulation and analysis, and the advantages of this new method are documented.","PeriodicalId":284950,"journal":{"name":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126908612","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
Detection of multiple overlapping bands of known amplitude, with application to DNA fingerprinting 已知振幅的多个重叠带的检测，并应用于DNA指纹
Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002. Pub Date : 2002-11-03 DOI: 10.1109/ACSSC.2002.1197195
D. Fuhrmann
{"title":"Detection of multiple overlapping bands of known amplitude, with application to DNA fingerprinting","authors":"D. Fuhrmann","doi":"10.1109/ACSSC.2002.1197195","DOIUrl":"https://doi.org/10.1109/ACSSC.2002.1197195","url":null,"abstract":"One of the technologies in DNA mapping is the preparation of electrophoretic gels, which when stained and imaged electronically contain a number of diffuse rectangular objects, called \"bands\", several pixels in area, which must be detected and localized. This paper describes an algorithm which is central to the automated analysis of such gels, part of a large software product now in use for mapping projects at several genomics laboratories. The problem addressed is that of detecting multiple overlapping pulses of known shape and amplitude. The basic algorithm is one of analysis-by-synthesis, where pulses are added one by one to a forward synthesis model, with revisit to all pulses after each new pulse is added. Because the amplitudes are known there is no risk of significantly overfitting the data with additional model terms. The cost function utilized is a weighted least-squares function, which gives more weight to the shape of the test signal and less to its overall amplitude. Application of this algorithm in the larger context of DNA fingerprinting is discussed.","PeriodicalId":284950,"journal":{"name":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123258148","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信