Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)最新文献_第6页

Adaptive beamforming for multiuser space-time block coded systems 多用户空时分组编码系统的自适应波束形成

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI: 10.1109/ISSSTA.2004.1371799

X. Tran, T. Taniguchi, Y. Karasawa

引用次数: 13

Inter-carrier interference cancellation method based on cyclic embedding for OFDM communication systems 基于循环嵌入的OFDM通信系统载波间干扰消除方法

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI: 10.1109/ISSSTA.2004.1371732

Xia Wang, Shihua Zhu, Delong Sun

{"title":"Inter-carrier interference cancellation method based on cyclic embedding for OFDM communication systems","authors":"Xia Wang, Shihua Zhu, Delong Sun","doi":"10.1109/ISSSTA.2004.1371732","DOIUrl":"https://doi.org/10.1109/ISSSTA.2004.1371732","url":null,"abstract":"For orthogonal frequency-division multiplexing (OFDM) communication systems, the frequency offsets in mobile radio channels distort the orthogonality between subcarriers, resulting in inter-carrier interference (ICI), which seriously degrades the performance of systems. Based on ICI coefficients analysis and reasonable estimation of the frequency offset, the paper presents a novel decorrelation interference cancellation method with the use of frequency-domain equalization at the receiver. Without the iterative operation on the weighting coefficients and the inverse operation on the matrix, ICI can be eliminated by directly using the cyclic embedding algorithm of the Toeplitz matrix in terms of the discrete Fourier transform (DFT). Compared with conventional frequency-domain equalization, this new scheme has better convergence reliability and lower computational complexity. Simulation results show that an OFDM system using the proposed ICI cancellation scheme can effectively eliminate ICI, have significant performance improvement and mitigate the effects of OFDM communication systems. The scheme works very well in the multipath radio channel and high-speed mobile environment.","PeriodicalId":340769,"journal":{"name":"Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133469018","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

Multi-access performance analysis of TH-BPM impulse radio from spectrum point of view 从频谱角度分析TH-BPM脉冲无线电的多址性能

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI: 10.1109/ISSSTA.2004.1371708

Tao Wang

引用次数: 3

Multipath interference canceller for high speed downlink packet access in enhanced UMTS networks 用于增强型UMTS网络中高速下行分组访问的多径干扰消除器

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI: 10.1109/ISSSTA.2004.1371772

J.C. Silva, N. Souto, A. Correia, F. Cercas, A. Rodrigues

引用次数: 9

User traffic multiplexing on OFDM downlink 用户流量在OFDM下行链路上复用

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI: 10.1109/ISSSTA.2004.1371736

B. Popović, J. van de Beek

引用次数: 1

Multi-sensor frequency domain multiple access interference canceller for DS-CDMA systems DS-CDMA系统的多传感器频域多址干扰消除器

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI: 10.1109/ISSSTA.2004.1371657

Luis Renato Lage Goncalves, A. Gameiro

{"title":"Multi-sensor frequency domain multiple access interference canceller for DS-CDMA systems","authors":"Luis Renato Lage Goncalves, A. Gameiro","doi":"10.1109/ISSSTA.2004.1371657","DOIUrl":"https://doi.org/10.1109/ISSSTA.2004.1371657","url":null,"abstract":"Direct sequence code division multiple access (DS-CDMA) signals exhibit cyclostationary properties which imply a redundancy between frequency components separated by multiples of the symbol rate. In this paper a multiple access interference canceller (frequency shift canceller) that explores this property is presented. This linear frequency domain canceller operates on the spread signal in such way that the interference and noise at its output is minimized (minimum mean squared error criterion). The frequency shift canceller (FSC) performance was evaluated for a UMTS-TDD scenario and multi-sensor configurations, where the cases of diversity and beamforming were considered. All these configurations are evaluated concatenated with a parallel interference canceller (PIC-2D). The results are benchmarked against the performance of the conventional RAKE-2D detector, the conventional PIC-2D detector and single user scenario, and we observe considerable performance gains with the FSC especially for the diversity case and a performance close to the single user case when it was evaluated jointly with PIC-2D.","PeriodicalId":340769,"journal":{"name":"Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116282635","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

Minimum bit error probability of large randomly spread MC-CDMA systems in multipath Rayleigh fading 多径瑞利衰落下大随机分布MC-CDMA系统的最小误码概率

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI: 10.1109/ISSSTA.2004.1371762

R. Muller, A. Tulino

引用次数: 16

Improved MC-CDMA reception employing two-dimensional decision-feedback pilot and data symbol correction 采用二维决策反馈导频和数据符号校正改进MC-CDMA接收

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI: 10.1109/ISSSTA.2004.1371663

E. Haas, W. Krzymień

引用次数: 0

Adaptive decision feedback turbo equalization and multiuser detection 自适应决策反馈涡轮均衡和多用户检测

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI: 10.1109/ISSSTA.2004.1371758

V. Trajkovic, P. Rapajic

引用次数: 7

Adaptive WMSA channel estimation based on Doppler shift estimation in CP-SCBT systems 基于多普勒频移估计的CP-SCBT系统自适应WMSA信道估计

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI: 10.1109/ISSSTA.2004.1371741

Jingyu Hua, X. You, Dongming Wang, Qing-min Meng, Y. Kim

引用次数: 0