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Grid trust based on pre-measure and two-level reputation被引量：2
《The Journal of China Universities of Posts and Telecommunications》2007年第4期70-76,共7页ZHANG Lin WANG Ru-chuan WANG Hai-yan 
the National Natural Science Foundation of China（60573141,60773041）;the Hi-Tech Research and Development Program of China （2006AA01Z439）;Natural Science Foundation of Jiangsu Province （BK2005146）;High Technology Research Program of Jiangsu Province （BG2004004,BG2005037 and BG2006001）;Key Laboratory of Information Technology Processing of Jiangsu Province （kjs05001,kjs0606）;High Technology Research Program of Nanjing City （2006RZ105）;State Key Laboratory of Modern Communication （9140C1101010603）; Project sponsored by Jiangsu provincial research scheme of natural science for higher education institutions （07KJB520083）.
Security has been the focus of grid systems recently. As a kind of tool, grid security infrastructure （GSI） provides the authentication and authorization services and so on. These mechanisms mostly belong to the obj...
关键词：grid computing trust model REPUTATION pre-measure 
Two-Level Unequal Error Protection Scheme in Image Transmission System Using Multilevel Codes in Rayleigh Fading Channel
《The Journal of China Universities of Posts and Telecommunications》2004年第z1期55-61,共7页LI Zuo-wei~1, YANG Yi-xian~1, YUAN Dong-feng~2, HU Zheng-ming~1 1.Information Security Center,Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China 2.School of Information Science and Engineering, Shandong University, Jinan 250100, P.R. China 
theNationalNatureScienceFoundationofChina(No.69882 0 0 2 ,60 0 730 4 9)
In this paper, we propose a novel Unequal Error Protection (UEP) scheme with two levels for image transmission using Multilevel Codes (MLC). By providing the best protection for the most important data, the final reco...
关键词：rayleigh fading channel image transmission inequal error protection multilevel coding 
A Two-Level Spreading-despreading CDMA System and Its Performance Evaluation被引量：2
《The Journal of China Universities of Posts and Telecommunications》2003年第2期45-50,共6页HAO Li, FAN Ping zhi (Institute of Mobile Communications, Southwest Jiaotong University, Chengdu, 610031, P.R. China) 
ThisworkwassupportedbytheNationalScienceFoundationofChina(NSFC)underthegrant(No.6982 51 02and69931050),andtheMillenniumProjectofMEXT ,Japan.
A new two level spreading despreading scheme is presented in this paper. By adopting the two level scheme, the Generalized Orthogonal (GO) zone of GO codes can be utilized. In this paper, the forward link o...
关键词：CDMA GO codes spreading scheme 
A Two-Level Call Model for IN and B-ISDN Integration
《The Journal of China Universities of Posts and Telecommunications》1998年第2期53-56,75,共5页LongYuanxiang LiaoJianxin 等 
The paper provides an intelligent network call model as a way to implement multimedia services over B- ISDN.It is a two-level call model supporting separated call and bearer connection control. The first level mod...
关键词：intelligent network B-ISDN multimedia service 
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