Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)最新文献_第5页

Novel phase based, cross-correlation position estimation technique 一种新的基于相位的互相关位置估计技术

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.2004.1371718

I. Oppermann, A. Karlsson, H. Linderback

引用次数: 10

Frequency offset estimation with improved convergence time and energy consumption 改进收敛时间和能量消耗的频偏估计

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.2004.1371770

M. J. Ammer, J. Rabaey

引用次数: 4

Cancellation error statistics in a power-controlled CDMA system using successive interference cancellation 采用连续干扰对消的功率控制CDMA系统中的对消误差统计

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.2004.1371734

A. Hasan, J. Andrews

引用次数: 12

Statistically correct simulation models for the generation of multiple uncorrelated Rayleigh fading waveforms 统计上正确的多个不相关瑞利衰落波形产生的仿真模型

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.2004.1371745

Vanderlei A. Silva, Taufik Abrão, P. Jeszensky

引用次数: 16

On the design of spectrally overlaid multiple-symbol-rate multicarrier CDMA systems supporting multirate services 支持多速率业务的频谱覆盖多符号速率多载波CDMA系统设计

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.2004.1371666

Xiaoyu Hu, Y. Chew

引用次数: 4

Adaptive MIMO-OFDM combining space-time block codes and spatial multiplexing 结合空时分组码和空间复用的自适应MIMO-OFDM

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.2004.1371739

Mohd Hairi Halmi, D. Chieng

{"title":"Adaptive MIMO-OFDM combining space-time block codes and spatial multiplexing","authors":"Mohd Hairi Halmi, D. Chieng","doi":"10.1109/ISSSTA.2004.1371739","DOIUrl":"https://doi.org/10.1109/ISSSTA.2004.1371739","url":null,"abstract":"The increase in demand for higher capacity and data rates over wireless channels has fueled researchers to explore the time, frequency and spatial dimensions of signal transmission. Thus, dynamic signal transmission with a multiple dimensions approach emerged as a powerful paradigm in meeting with these demands. Multiple-input multiple-output (MIMO) communication systems offer significant capacity gain compared to conventional single-input single-output (SISO) systems by exploiting the spatial dimension. Many MIMO techniques have been proposed including space-time coding (STC) and spatial multiplexing (SM). STC is used to provide more reliable communication, whereas the SM technique delivers faster communication. Combining STC and SM offers the best trade-off between transmission reliability and capacity. Using adaptive power and bit loading schemes, time-varying channel characteristics are exploited to improve data rate, reliability and power optimization. Spectrum efficiency is increased using orthogonal frequency division multiplexing (OFDM), a powerful method that utilizes the orthogonality of signals in the frequency domain to combat intersymbol interference (ISI). The paper proposes an adaptive MIMO-OFDM system model that combines both STC and SM over space. This model exploits all three dimensions of signal transmission to provide high data rates and robust signal transmission.","PeriodicalId":340769,"journal":{"name":"Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)","volume":"54 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":"120983888","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: 10

High data rate UWB performance with reduced implementation complexity 高数据速率UWB性能，降低实现复杂性

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.2004.1371675

R. Moorfeld, A. Finger, S. Zeisberg

{"title":"High data rate UWB performance with reduced implementation complexity","authors":"R. Moorfeld, A. Finger, S. Zeisberg","doi":"10.1109/ISSSTA.2004.1371675","DOIUrl":"https://doi.org/10.1109/ISSSTA.2004.1371675","url":null,"abstract":"The bit error rate (BER) performance of the imperfect digital matched filter (IDMF) receiver in a typical multiuser scenario assuming LOS conditions for the terminals is investigated. Due to the extremely high processing requirements of the digital matched filter, it is assumed that for an implementation the number of bits as well as the number of filter coefficients has to be as low as possible introducing implementation loss. Furthermore imperfect channel estimation is taken into account. The resulting BER performance of the IDMF receiver is compared to the BER performance of the ideal matched filter receiver. Additionally the BER performance of a coded IDMF receiver, which applies sophisticated turbo forward error correction coding, is investigated. The results show that the IDMF receiver can reach the uncoded target BER of 10/sup -2/ in the environment investigated and that this uncoded BER corresponds to a coded BER of less than 10/sup -6/. For the IDMF receiver the required E/sub b//N/sub 0/ ratio to achieve the target BER strongly depends on the number of filter coefficients.","PeriodicalId":340769,"journal":{"name":"Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)","volume":"14 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120994818","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

Fast converging blind adaptive multiuser detectors with linearly constrained CMA for DS/CDMA systems DS/CDMA系统的线性约束CMA快速收敛盲自适应多用户检测器

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.2004.1371683

Liping Sun, G. Bi, L. Zhang

引用次数: 7

A robust quadratically constrained adaptive blind multiuser receiver for cellular DS/CDMA systems 一种用于蜂窝DS/CDMA系统的鲁棒二次约束自适应盲多用户接收机

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.2004.1371685

A. Elnashar, S. Elnoubi, H. Elmikati

{"title":"A robust quadratically constrained adaptive blind multiuser receiver for cellular DS/CDMA systems","authors":"A. Elnashar, S. Elnoubi, H. Elmikati","doi":"10.1109/ISSSTA.2004.1371685","DOIUrl":"https://doi.org/10.1109/ISSSTA.2004.1371685","url":null,"abstract":"A new low-computational complexity robust adaptive blind multiuser receiver based on a constrained optimization approach with multiple constraints and a quadratic inequality (QI) constraint on the weight vector norm is developed. A diagonal loading technique is required to apply the quadratic constraint where the diagonal loading value is adjusted to satisfy the constrained value. Implementing the quadratic constraint into adaptive update algorithms such as least-mean-square (LMS) or recursive-least-mean (RLS) seems to be a difficult task. The minimum output energy (MOE) detector is implemented using a new adaptive algorithm based on the partition linear interference canceller (PLIC) structure with multiple constraints and a QI constraint on the weight vector norm. A new optimal variable loading (VL) technique, which is capable of providing robust control against signal mismatch with low computational complexity, is adopted. Simulations in a rich multipath environment with near-far effect are presented to demonstrate the robustness and fidelity of the proposed detector.","PeriodicalId":340769,"journal":{"name":"Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)","volume":"148 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":"122572732","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

Achievable rates for MIMO fading channels with limited feedback 有限反馈条件下MIMO衰落信道的可实现速率

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.2004.1371652

W. Santipach, M. Honig

引用次数: 18