国家自然科学基金(60472045)

作品数:7被引量:4H指数:1
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相关作者:李少谦周亮付琳张忠培刘威鑫更多>>
相关机构:电子科技大学成都信息工程大学展讯通信(上海)有限公司更多>>
相关期刊:《电信科学》《Chinese Journal of Electronics》《Journal of Electronics(China)》《电子与信息学报》更多>>
相关主题:MIMOCRB网络编码组播吞吐量更多>>
相关领域:电子电信自动化与计算机技术更多>>
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AN IMPROVED AND EFFICIENT DETECTION SCHEME FOR V-BLAST SYSTEMS WITH QAM MODULATION被引量:1
《Journal of Electronics(China)》2008年第5期588-594,共7页Lin Huajiong Tang Youxi Shao Shihai 
the National Natural Science Foundation of China(No.60272009,No.60572090,No.60472045 and No.60496313)
The paper proposed an improved Ordered Successive Interference Cancellation(OSIC) detection scheme for V-BLAST systems with square/rectangular Quadrature Amplitude Modulation(QAM) modulation.It utilizes an equivalent ...
关键词:Multiple-Input Multiple-Output (MIMO) Ordered Successive Interference Cancellation (OSIC) Quadrature Amplitude Modulation (QAM) Vertical Bell Labs Architecture of Layered Space-Time (V-BLAST) 
CONSTRUCTION OF NONSYSTEMATIC LOW-DENSITY PARITY-CHECK CODES BASED ON SYMMETRIC BALANCED INCOMPLETE BLOCK DESIGN
《Journal of Electronics(China)》2008年第4期445-449,共5页Lin Dengsheng Li Qiang Li Shaoqian 
the National Natural Science Foundation of China(No.60272009,No.60472045,and No.60496313).
This paper studies the nonsystematic Low-Density Parity-Check(LDPC)codes based onSymmetric Balanced Incomplete Block Design(SBIBD).First,it is concluded that the performancedegradation of nonsystematic linear block co...
关键词:Low-Density Parity-Check (LDPC) codes Nonsystematic codes Symmetric Balanced Incomplete Block Design (SBIBD) Finite projective geometries 
协同伙伴选择的公平性研究
《电子与信息学报》2008年第4期809-813,共5页刘威鑫 张忠培 李少谦 张严 
田家十五、863重大项目(863-317-03-01-05/MILC3G-05-00);国家自然科学基金重大项目(60572090,60472045,60496313)资助课题
在协同网络中,协同伙伴的选择是一个非常关键的问题。以前关于这个问题的解决方案本质上是基于收发的性能而忽略了协同伙伴选择的公平性。该文提出通过下述机制来获得公平性的一种新策略。(1)通过用户各自的计数器建立"帮助别人就是帮...
关键词:协同分集 负载均衡 公平性 即时信噪比 
Carrier Frequency Offset Estimation for MIMO over Spatially Correlated Flat-fading Channels
《Chinese Journal of Electronics》2008年第1期150-154,共5页DENG Kai TANG Youxi SHAO Shihai LEI Xia LI Shaoqian 
This work is supported by the National Natural Science Foundation of China (No.60572090, No.60496313, No.60472045 and No.60602009).
This paper deals with Carrier frequency offset (CFO) estimation for Multiple-input multiple-output (MIMO) systems. A Rayleigh fiat-fading channel model is considered and spatial correlation among channels correspo...
关键词:Carrier frequency offset estimation Cramer-Rao bound (CRB) Maximum likelihood Multiple-input multiple-output (MIMO) Spatially correlated fading. 
ESTIMATION OF CARRIER FREQUENCY OFFSETS FOR MIMO SYSTEMS WITH DISTRIBUTED TRANSMIT ANTENNAS被引量:2
《Journal of Electronics(China)》2007年第4期455-461,共7页Deng Kai Tang Youxi Lei Xia Li Shaoqian 
the National Natural Science Foundation of China (No. 60272009, No. 60572090, No. 60472045, No. 60496313 and No. 60602009).
The problem of estimating the carrier frequency offsets in Multiple-Input Multiple-Output (MIMO) systems with distributed transmit antennas is addressed. It is supposed that the transmit antennas are distributed while...
关键词:Multiple-Input Multiple-Output (MIMO) Distributed antenna Carrier frequency offset estimation Maximum Likelihood (ML) Cramer-Rao Bound (CRB) 
网络编码的研究进展被引量:1
《电信科学》2007年第5期68-71,共4页付琳 周亮 李少谦 
教育部博士点基金资助项目(No.20050614009);国家自然科学基金资助项目(No.60472045)
本文概述了网络编码的概念以及它的特点,介绍了网络编码在实际应用中的研究进展,同时指出了今后的研究方向。
关键词:网络编码 最大流量小割 组播 吞吐量 
Performance Analysis of a Transform Domain Receiver for DS-CDMA Systems
《Chinese Journal of Electronics》2006年第4期707-712,共6页SHAO Shihai TANG Youxi PAN Wensheng LI Shaoqian 
This work is supported by the National Natural Science Foundation of China (No.60272009, No.60572090, No.60472045, No.60496313) and Doctor Foundation of Higher Education Institutions of China (No.20050614009).
This paper describes a more generalized transform domain receiver for Direct sequence Code division multiple access (DS-CDMA) systems. The proposed receiver is motivated by the equivalence of the transmitted signal ...
关键词:Direct sequence spread spectrum Code division multiple access Fast Fourier transform (FFT) Bit error rate. 
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