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1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304)最新文献

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Modulo pre-equalization of nonlinear communication channels 非线性通信信道的模预均衡
1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304) Pub Date : 1900-01-01 DOI: 10.1109/SPAWC.1999.783015
A. Kambanellas, G.B. Giannnkis
{"title":"Modulo pre-equalization of nonlinear communication channels","authors":"A. Kambanellas, G.B. Giannnkis","doi":"10.1109/SPAWC.1999.783015","DOIUrl":"https://doi.org/10.1109/SPAWC.1999.783015","url":null,"abstract":"Compensating for nonlinear distortions is of interest in low- and high-power satellite communications, magnetic recording, and multicarrier systems such as OFDM and discrete multi-tone (DMT) where non-constant modulus transmissions increase the peak-to-average power ratio. A digital zero-forcing (ZF) predistorter, based on module arithmetic, is developed to equalize nonlinear Volterra channels whose estimates are available at the transmitter.","PeriodicalId":365086,"journal":{"name":"1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304)","volume":"50 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":"132978347","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
Mobility parameter estimation for the optimization of personal paging areas in PCS/cellular mobile networks pc /蜂窝移动网络中个人寻呼区域优化的移动性参数估计
1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304) Pub Date : 1900-01-01 DOI: 10.1109/SPAWC.1999.783080
Z. Lei, C. Saraydar, N. Mandayam
{"title":"Mobility parameter estimation for the optimization of personal paging areas in PCS/cellular mobile networks","authors":"Z. Lei, C. Saraydar, N. Mandayam","doi":"10.1109/SPAWC.1999.783080","DOIUrl":"https://doi.org/10.1109/SPAWC.1999.783080","url":null,"abstract":"We formulate the optimum personal paging area problem as an interval estimation problem, with an aim to reduce the paging signaling cost by minimizing the size of the paging area. A paging algorithm is developed to set-up the optimal one-step paging area that contains the locations of a mobile user with a high probability and thus to gain a coverage that is matched to the user's time-varying mobility pattern. With a particular mobility model, the effects of the user's mobility characteristics and the system parameters on the performance of the paging procedure are investigated.","PeriodicalId":365086,"journal":{"name":"1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304)","volume":"39 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":"114755924","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: 13
Experimental analysis of antenna coupling for high-resolution DOA estimation algorithms 高分辨率DOA估计算法的天线耦合实验分析
1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304) Pub Date : 1900-01-01 DOI: 10.1109/SPAWC.1999.783093
A. Lemma, E. Deprettere, A. van der Veen
{"title":"Experimental analysis of antenna coupling for high-resolution DOA estimation algorithms","authors":"A. Lemma, E. Deprettere, A. van der Veen","doi":"10.1109/SPAWC.1999.783093","DOIUrl":"https://doi.org/10.1109/SPAWC.1999.783093","url":null,"abstract":"In array signal processing, high-resolution parameter estimation algorithms are known to be sensitive to phase, amplitude and mutual coupling distortions. We present experimental results showing that these high-resolution estimation methods can achieve their theoretically expected performances only if the non-ideal array behavior is appropriately modelled and compensated. Using a simple previously proposed distortion compensation technique, we show that it is possible to improve the estimation error considerably, and that actual array response modelling and compensation is indeed an essential element of any high-resolution DOA estimation method.","PeriodicalId":365086,"journal":{"name":"1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304)","volume":"12 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":"131586306","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
A new approach to blind separation of cyclostationary sources 一种盲分离环平稳源的新方法
1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304) Pub Date : 1900-01-01 DOI: 10.1109/SPAWC.1999.783032
K. Abed-Meraim, Y. Xiang, J.H. Manron, Y. Hua
{"title":"A new approach to blind separation of cyclostationary sources","authors":"K. Abed-Meraim, Y. Xiang, J.H. Manron, Y. Hua","doi":"10.1109/SPAWC.1999.783032","DOIUrl":"https://doi.org/10.1109/SPAWC.1999.783032","url":null,"abstract":"This paper studies the problem of blind source separation (BSS) under the assumption that the source signals are cyclostationary. Attention is restricted to methods based on second-order cyclostationary statistics (SOCS). Necessary and sufficient conditions for SOCS-based identifiability and SOCS-based separability are presented. Algorithms are developed to achieve BSS using only SOCS.","PeriodicalId":365086,"journal":{"name":"1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304)","volume":"8 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":"125017132","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
Recursive blind source separation for BPSK signals BPSK信号的递归盲源分离
1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304) Pub Date : 1900-01-01 DOI: 10.1109/SPAWC.1999.783070
G. Leus, D. Gesbert
{"title":"Recursive blind source separation for BPSK signals","authors":"G. Leus, D. Gesbert","doi":"10.1109/SPAWC.1999.783070","DOIUrl":"https://doi.org/10.1109/SPAWC.1999.783070","url":null,"abstract":"This paper addresses the important problem of separating and estimating the contributions of multiple users (sources) signals impinging on an antenna array in a wireless communication system. The proposed approach has key advantages over existing ones, which are listed below: (i) the structure of estimation is recursive, therefore it estimates the incoming bits on the fly as they reach the receive array instead of estimating a separating matrix. (ii) it exploits the finite alphabet property (here, BPSK) of the communication signals in an explicit manner, through the use of a finite-state trellis. (iii) perfect decisions are obtained in the absence of noise upon certain mild conditions on the transmitted signals (excitation conditions). Therefore (local) convergence is not an issue here.","PeriodicalId":365086,"journal":{"name":"1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304)","volume":"77 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":"125261109","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
Vandermonde-Lagrange mutually orthogonal flexible transceivers for blind CDMA in unknown multipath 用于未知多径盲CDMA的Vandermonde-Lagrange互正交柔性收发器
1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304) Pub Date : 1900-01-01 DOI: 10.1109/SPAWC.1999.783014
Zhengdao Wang, A. Scnglione, G. Giannakis, S. Barbavossa
{"title":"Vandermonde-Lagrange mutually orthogonal flexible transceivers for blind CDMA in unknown multipath","authors":"Zhengdao Wang, A. Scnglione, G. Giannakis, S. Barbavossa","doi":"10.1109/SPAWC.1999.783014","DOIUrl":"https://doi.org/10.1109/SPAWC.1999.783014","url":null,"abstract":"A mutually-orthogonal usercode-receiver (AMOUR) system was previously proposed to guarantee identifiability of transmitted symbols irrespective of channel nulls in addition to offering deterministic multiuser interference (MUI) elimination and low complexity transceivers. Motivated by the desire to equip the AMOUR with added flexibility, we develop in this paper a Vandermonde-Lagrange AMOUR system that achieves the same MUI eliminating property and offers additional advantages in the code assignment procedure. We also derive blind adaptive equalizers within the VL-AMOUR framework and illustrate via simulations that they perform very close to the theoretical bound derived with perfect channel information.","PeriodicalId":365086,"journal":{"name":"1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304)","volume":"40 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":"123033201","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: 18
Deterministic blind estimation of time- and frequency-selective fading channels using filterbank precoders 使用滤波器组预编码器的时频选择性衰落信道的确定性盲估计
1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304) Pub Date : 1900-01-01 DOI: 10.1109/SPAWC.1999.783022
C. Tepedelenlioğlu
{"title":"Deterministic blind estimation of time- and frequency-selective fading channels using filterbank precoders","authors":"C. Tepedelenlioğlu","doi":"10.1109/SPAWC.1999.783022","DOIUrl":"https://doi.org/10.1109/SPAWC.1999.783022","url":null,"abstract":"Novel deterministic channel estimation and symbol recovery algorithms are proposed for the identification and equalization of time- and frequency selective channels where the time variation is modeled by a Fourier basis expansion. The resulting algorithms employ a generalized orthogonal frequency division multiplexing (OFDM) precoding scheme, require few data points to be operational and yield near-perfect estimates at high SNRs. Simulations illustrate the approach.","PeriodicalId":365086,"journal":{"name":"1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304)","volume":"114 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":"134003930","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
Performance analysis of redundant precoding schemes with blind estimation capabilities 具有盲估计能力的冗余预编码方案性能分析
1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304) Pub Date : 1900-01-01 DOI: 10.1109/SPAWC.1999.783097
S. Barbarossa, A. Scaglione, G. Giannakis
{"title":"Performance analysis of redundant precoding schemes with blind estimation capabilities","authors":"S. Barbarossa, A. Scaglione, G. Giannakis","doi":"10.1109/SPAWC.1999.783097","DOIUrl":"https://doi.org/10.1109/SPAWC.1999.783097","url":null,"abstract":"The paper provides a performance analysis of a deterministic method proposed previously for blind identification of linear time-invariant channels, in the presence of additive noise, for block transmission systems using redundant precoding. The robustness of the blind estimation method is also analyzed in the presence of slow channel variations arising due to Doppler shifts or due to phase noise at the transmit/receive oscillators. The theoretical analysis is validated by simulations.","PeriodicalId":365086,"journal":{"name":"1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304)","volume":"609 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":"116465668","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
Robust pulse amplitude modulation via semidefinite programming 鲁棒脉冲调幅通过半定规划
1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304) Pub Date : 1900-01-01 DOI: 10.1109/SPAWC.1999.783082
T. Davidson, Z. Luo, K. Wong
{"title":"Robust pulse amplitude modulation via semidefinite programming","authors":"T. Davidson, Z. Luo, K. Wong","doi":"10.1109/SPAWC.1999.783082","DOIUrl":"https://doi.org/10.1109/SPAWC.1999.783082","url":null,"abstract":"The design of the waveform for a pulse amplitude modulation scheme is formulated as a convex semidefinite programme (SDP), from which a globally optimal solution can be found using highly efficient interior point methods. The SDP is used to design a waveform which provides maximal robustness to timing error subject to a constraint on its duration and a relative spectral mask constraint on the transmitted signal. As an example we design a waveform with substantially improved performance over the 'chip' waveform in the IS95 standard for code division multiple access mobile telephony.","PeriodicalId":365086,"journal":{"name":"1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304)","volume":"54 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":"117202159","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
Self-recovering transceivers for block transmissions: filterbank precoders and decision-feedback equalizers
1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304) Pub Date : 1900-01-01 DOI: 10.1109/SPAWC.1999.783064
A. Stamoulis, G. Giannakis, A. Scaglione
{"title":"Self-recovering transceivers for block transmissions: filterbank precoders and decision-feedback equalizers","authors":"A. Stamoulis, G. Giannakis, A. Scaglione","doi":"10.1109/SPAWC.1999.783064","DOIUrl":"https://doi.org/10.1109/SPAWC.1999.783064","url":null,"abstract":"Transmitter induced redundancy using FIR filterbanks can be used to equalize FIR channels irrespective of channel zeros and facilitate blind channel estimation. At the receiver end, linear or non-linear (DFE) FIR filterbanks can be applied to recover the transmitted data. Closed form expressions are derived for the FIR linear or DFE filterbank receivers. By applying blind channel estimation methods, the resulting DFE-framework becomes self-recovering. Extensive simulations illustrate the merits of our designs.","PeriodicalId":365086,"journal":{"name":"1999 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications (Cat. No.99EX304)","volume":"1 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":"129226430","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: 3
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