中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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A scalable blockchain network model with transmission paths and neighbor node subareas 期刊论文  OAI收割
COMPUTING, 2021
作者:  
Yu, Bin;  Li, Xiaofeng;  Zhao, He;  Zhou, Tong
  |  收藏  |  浏览/下载:31/0  |  提交时间:2021/04/26
An advanced LEO satellite network model based on MPLS-TP (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Advanced Intelligence and Awareness Internet, AIAI 2010, October 23, 2010 - October 25, 2010, Beijing, China
作者:  
Zhang Y.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
LEO (Low Earth Orbit) satellite networks are capable of providing broadband access to end users in any part of the world. With the characteristics of high-speed movement and rapid dynamic topology of LEO satellites  networking has always been one of the key issues in LEO satellite network. MPLS-TP (Multi-Protocol Label Switching-Transport Profile) is an excellent packet transport network (PTN) technology in terrestrial networks  which can support multi-service and have perfect function of QoS (Quality of Service)  OAM (Operation Administration Maintenance) and survivability. In this paper  the characteristics of LEO satellite network and functional architecture of MPLS-TP are introduced. Then an advanced LEO satellite network model based on MPLS-TP (ALSN-M) is proposed  which can guarantee a connection-oriented seamless data transmission. Furthermore topology and routing algorithms of proposed LEO satellite network model is analyzed. In the end  the paper describes how to setup and remove a LSP (Label Switched Path) and how to maintain an exiting LSP when a handover happens.  
transmission scheduling for multi-homed transport protocols with network failure tolerance 会议论文  OAI收割
10th International Conference on Mobile and Wireless Communications (MWCN 2008)/13th International Conference on Personal Wireless Communications (PWC 2008), Toulouse, FRANCE, SEP 30-OCT
Qiao Yuansong; Fallon Enda; Murphy John; Murphy Liam; Shi Zhiqiang; Hanley Austin
  |  收藏  |  浏览/下载:38/0  |  提交时间:2011/03/31
Design of optical lens for space tridimensional mapping camera (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Wang Z.;  Wang Z.;  Zhang L.-P.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
Three-linear array tridimensional mapping camera consists of three independent linear CCD cameras. Unique position must be kept among the three linear CCD cameras. Optical lens is one of pivotal parts  MTF  the ground resolution power is 5m  resolving power  the distortion is 3/10000. They meet the need of user. 2009 SPIE.  distortion are its important techno-items. The optical lens of space tridimensional mapping camera is the key to accomplish the tridimensional mapping mission. In order to meet the need of user  a design on optical lens of transmission semi-telecentric beam path in image space is expounded  and assembly method based on DFT(Design For Test) of single lens suit and whole optical lens are expounded. The test results indicates that the MTF of optical lens referred in the paper is 0.45(@77lp/mm)