中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共8条,第1-8条 帮助

条数/页: 排序方式:
Reliability-Aware and Deadline-Constrained Mobile Service Composition Over Opportunistic Networks 期刊论文  OAI收割
IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING, 2021, 卷号: 18, 期号: 3, 页码: 1012-1025
作者:  
Peng, Qinglan;  Xia, Yunni;  Zhou, MengChu;  Luo, Xin;  Wang, Shu
  |  收藏  |  浏览/下载:82/0  |  提交时间:2021/08/20
A Two-Layered Incentive Scheme for Cooperation in Sliced 5G D2D Networks 期刊论文  OAI收割
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2020, 卷号: 69, 期号: 11, 页码: 13289-13304
作者:  
Sun, Qian;  Tian, Lin;  Zhou, Yiqing;  Shi, Jinglin;  Wang, Yuanyuan
  |  收藏  |  浏览/下载:66/0  |  提交时间:2021/12/01
User-centric content sharing via cache-enabled device-to-device communication 期刊论文  OAI收割
JOURNAL OF NETWORK AND COMPUTER APPLICATIONS, 2018, 卷号: 115, 页码: 103-115
作者:  
Sun, Sheng;  Liu, Min;  Jiao, Zhenzhen;  Pang, Xiao;  Chen, Shuang
  |  收藏  |  浏览/下载:23/0  |  提交时间:2019/12/10
Secrecy-Optimized Resource Allocation for Device-to-Device Communication Underlaying Heterogeneous Networks 期刊论文  OAI收割
ieee transactions on vehicular technology, 2017, 卷号: 66, 期号: 2, 页码: 1822-1834
作者:  
Zhang, Kecheng;  Peng, Mugen;  Zhang, Ping;  Li, Xuelong
收藏  |  浏览/下载:34/0  |  提交时间:2017/03/06
A new low-bandwidth and wireless transmission scheme for CCd image (EI CONFERENCE) 会议论文  OAI收割
2012 International Symposium on Photonics and Optoelectronics, SOPO 2012, May 21, 2012 - May 23, 2012, Shanghai, China
作者:  
Zhang Y.
收藏  |  浏览/下载:35/0  |  提交时间:2013/03/25
The CCD (Charge-coupled Device) image sensor with its high resolution is capable of providing high definition image. However  transmission requires high bandwidth  which makes it very difficult to process and transmit in a long distance. The purpose of this paper is to propose a new method to process and transmit CCD image  which can guarantee a low-bandwidth and long-distance data transmission. The innovation is that the transmission content of CCD image data can be flexibly selected and compressed firstly  which will reduce the transmission data. Then it is processed on the base of communication protocol so that it can be fit for wireless transmission. At last  it is transformed into wireless signal and transmitted using 3G technology. As a result  the paper presents a wireless transmission scheme with the rate of 1.5Mbps for CCD image. 2012 IEEE.  
The design of high speed image acquisition system over Gigabit Ethernet (EI CONFERENCE) 会议论文  OAI收割
2010 IEEE International Conference on Wireless Communications, Networking and Information Security, WCNIS 2010, June 25, 2010 - June 27, 2010, Beijing, China
作者:  
Zhang W.;  He X.;  Zhang W.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
The applications based on traditional digital cameras have been limited by distance  cost and networking. Gigabit Ethernet is a data transmission standard based on the IEEE 802.3 protocol  brings several benefits to image transmission. In this paper  we compare the main features of Gigabit Ethernet and traditional digital camera interfaces. And  we design a high speed image acquisition system which overcomes these application limitations by allowing cameras to send imaging data over Gigabit Ethernet. In this system  we design a highly efficient  bidirectional conversion device based on FPGA  converts imaging data from a camera to IP packets based on UDP protocol  and sends it to PCs over inexpensive Cat-5 copper LAN cable. At the PC  the Cat-5 cable plugs into a standard Gigabit Ethernet NIC(network interface card)  eliminating the need for a frame grabber. An communications application software is used to acquire the network data  construct and display the image. A simple and efficient acknowledge and resend mechanism was used to guarantee packet delivery. The system architecture and the communication protocol are discussed in details  the experiment and results are presented in this paper. 2010 IEEE.  
Real-time quality control on a smart camera (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
Xiao C.; Zhou H.; Li G.; Hao Z.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
A smart camera is composed of a video sensing  high-level video processing  communication and other affiliations within a single device. Such cameras are very important devices in quality control systems. This paper presents a prototyping development of a smart camera for quality control. The smart camera is divided to four parts: a CMOS sensor  a digital signal processor (DSP)  a CPLD and a display device. In order to improving the processing speed  low-level and high-level video processing algorithms are discussed to the embedded DSP-based platforms. The algorithms can quickly and automatic detect productions' quality defaults. All algorithms are tested under a Matlab-based prototyping implementation and migrated to the smart camera. The smart camera prototype automatic processes the video data and streams the results of the video data to the display devices and control devices. Control signals are send to produce-line to adjust the producing state within the required real-time constrains.  
Using one-dimensional nonlinear photonic crystal for dynamical addressing optical interconnection (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Li C.;  Wang W.;  Wang W.;  Li C.;  Li C.
收藏  |  浏览/下载:35/0  |  提交时间:2013/03/25
Optical interconnection is the key technique of high-speed optical information process and optical communication. A lot of approaches for optical interconnection have been proposed since Goodman in Stanford University firstly proposed the optical interconnection for very large scale integrated circuits technology. A dynamical addressing device for optical interconnection was designed and fabricated in this paper. This optical device is based on one-dimensional nonlinear photonic crystal made on the planar waveguide. The nonlinear materials ZnS and ZnSe  which have large nonlinear refractive index coefficients  were alternately deposited on the waveguide to form one-dimensional photonic crystal. The Bragg condition is changed when the input power of the control light increased due to the nonlinear characters of the materials  thus the reflective angle of the signal light can be changed with the input power change of the control light. In our experiment  when increasing the power density of control light from 0 to 2.60X105W/cm 2  the angle of the signal beam can be changed about 20. The interconnection characteristics were investigated in theory and in experiment. The testing data agree well with theoretical predictions. This kind of devices is promising to use in the all-optical interconnection  optical information processing and optical communication.