检索结果-内蒙古大学图书馆

ICC 2008 - 2008 IEEE International Conference on Communications Workshops

作者： Liu, Zhong-Yi Liu, Bin Zhao, Tong Yan, Wei School of Electronics Engineering and Computer Science PKU Beijing China State Key Lab. for Adv. Opt. Commun. Syst. and Networks Peking University Beijing China

ISBN: (纸本)9781424420513

Vehicular networks have become increasingly popular in the research community. Messages in vehicular networks are usually subject to both time and space constraints, and therefore should be disseminated during a specified duration and within a specific coverage. Since vehicles are constantly moving in and out of a region, dissemination of a message should be repeated to achieve reliability. However, the reliable dissemination for some messages might be at the cost of unreliable or even no chance of dissemination for other messages, which raises tradeoffs between reliability and fairness. In this paper, we study the scheduling of data dissemination in vehicular networks with mesh infrastructure. Performance metrics for reliability and fairness are proposed first. Our metric for reliability covers factors in both time and space dimensions and the metric for fairness incorporates fairness in both the network-wise sense and the Mesh Roadside Unit-wise (MRU-wise) sense. Several scheduling algorithms are developed: one reliability-oriented algorithm, one fairness-oriented algorithm and three hybrid schemes. Extensive evaluation work is performed to quantitively analyze different scheduling algorithms. Our Evaluation results show that (1) hybrid schemes outperform reliability-oriented and fairness-oriented algorithms in the sense of overall efficiency and (2) different algorithms have quite different characteristics on reliability and fairness. ©2008 IEEE.

关键词： Reliability

来源：评论

学校读者我要写书评

暂无评论

Improved handoff scheme for supporting network mobility in nested mobile networks

Improved handoff scheme for supporting network mobility in n...

引用

International Conference on Computational Science and Its Applications - ICCSA 2005

作者： Ryu, Han-Kyu Kim, Do-Hyeon Cho, You-Ze Lee, Kang-Won Park, Hee-Dong Networks Lab. Samsung Electronics Suwan Korea Republic of Dept. of Computer and Telecommunication Engineering Cheju National University Jeju-do 690-756 Korea Republic of School of Electrical Engineering and Computer Science Kyungpook National University Taegu. 702-701 Korea Republic of Department of Computer Engineering Pohang College Pohang 791-711 Korea Republic of

The IETF NEMO working group on network mobility is currently standardizing a basic support for moving networks. We need a handoff scheme for achieving the performance transparency during the movement of mobile routers in nested mobile networks. But the existed handoff schemes for a mobile host are not suitable for network mobility because packet transmission delay and traffic increase during mobile router's handoff in nested mobile networks. This paper proposes a new seamless handoff scheme using the bi-casting based on IPv6 in nested mobile networks. Compared with the handoff schemes using bi-directional edge tunneling for host mobility support on simulation, the results show that the proposed handoff scheme reduces the packet delay during a mobile router changes the point of attachment in nested mobile networks. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Telecommunication networks

来源：评论

学校读者我要写书评

暂无评论

Simultaneous transmission of high-speed point-to-point data and double broadcast services in a WDM-PON system with source-free ONUs

Simultaneous transmission of high-speed point-to-point data ...

引用

Optical Transmission, Switching, and Subsystems VI

作者： Chang, Qingjiang Huang, Mingfang Su, Yikai State Key Lab. of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200240 China School of Electrical and Computer Engineering Georgia Institute of Technology GA 30332 United States

We propose that double broadcast services can be overlaid over high-speed point-to-point downlink data in a WDM-PON with source-free optical network units (ONUs). In the optical line terminal (OLT), a set of single-drive MachZehnder modulators (MZMs) are driven by downlink point-to-point data to generate a differential phase-shift keying (DPSK) format. The downlink DPSK signals from different wavelengths are multiplexed and then fed to a following dual-parallel MZM (DPMZM) as a double broadcast services transmitter. The broadcast service-l is an optical carrier suppression (OCS) format, while the broadcast service-2 is an inverse return-to-zero (IRZ) forma. After the transmission, at each ONU, the optical signals are separated by an optical filter. The filtered OCS signal is detected to retrieve the broadcast service-1. The DPSK/IRZ signals are split into three parts, one part is detected by an IRZ receiver to recover the broadcast service-2, the second part is detected by a DPSK receiver to retrieve the downlink data and the third part is re-modulated by the upstream amplitude shift keying (ASK). We also perform an experiment to verify the feasibility of the proposed scheme, where the power penalties of less than 1.5 dB are obtained after 25-km transmission with 1.25-Gb/s data rate. © 2008 SPIE.

关键词： Digital storage

来源：评论

学校读者我要写书评

暂无评论

The Design and Implementation of a DTN Naming System

The Design and Implementation of a DTN Naming System

引用

3rd International Conference on Computational Science, engineering and Information Technology, CCSEIT 2013

作者： Chen, Lishui Wang, Songyang Sun, Zhenxi Yan, Changjiang Rao, Huijuan Science and Technology on Information Transmission and Dissemination in Communication Networks Lab. Shijiazhuang 050081 China School of Computer Science and Engineering Beihang University Beijing 100191 China Department of Communication Engineering Harbin Institute of Technology Harbin 150001 China

ISBN: (纸本)9783319009506

This paper presents the design and implementation of the naming mechanism (NAME), a resource discovery and service location approach for Delay/Disruption-Tolerant Network (DTN). First discuss the architecture of NAME mainly including Name Knowledge Base, Name Dissemination, Name Resolution and Name-based Routing. In the design and implementation of NAME, we introduce the simple name-specifiers to describe name, the name-tree for name storage and the efficient predicate-based routing algorithm. Future work is finally discussed for completing NAME and providing APIs for abundant applications.

关键词： Knowledge based systems

来源：评论

学校读者我要写书评

暂无评论

Interval diagram techniques for symbolic model checking of Petri nets

Interval diagram techniques for symbolic model checking of P...

引用

Design, Automation and Test in Europe Conference and Exhibition

作者： K. Strehl L. Thiele Computer Engineering and Networks Lab (TIK) Swiss Federal Institute of Technology Zurich Switzerland

Symbolic model checking tries to reduce the state explosion problem by implicit construction of the state space. The major limiting factor is the size of the symbolic representation mostly stored in huge binary decision diagrams. A new approach to symbolic model checking of Petri nets and related models of computation is presented, outperforming the conventional one and avoiding some of its drawbacks. Our approach is based on a novel, efficient form of representation for multi-valued functions called interval decision diagram (IDD) and the corresponding image computation technique using interval mapping diagrams (IMDs). IDDs and IMDs are introduced, their properties are described, and the feasibility of the new approach is shown with some experimental results.

关键词： Petri nets Boolean functions Data structures Computational modeling Formal verification Binary decision diagrams computer networks Space technology World Wide Web Explosions

来源：评论

学校读者我要写书评

暂无评论

An efficient partial link monitoring scheme for inter-domain routing under dynamic traffic scenarios

An efficient partial link monitoring scheme for inter-domain...

引用

作者： Zhang, Pengfei Jin, Yaohui Sun, Weiqiang Guo, Wei Hu, Weisheng Ghani, N. State Key Lab. of Advanced Communication Systems and Networks Shanghai Jiao Tong University China Electrical and Computer Engineering Department University of New Mexico United States

We investigate link-state advertising in multi-domain networks with dynamic traffic. A novel triggering scheme is proposed to monitor a subset of domain links, and thereby achieve a balance between salability and accu... 详细信息

ISBN: (纸本)9781457702136

关键词： Optical fibers

来源：评论

学校读者我要写书评

暂无评论

Model-free Robust Optimal Feedback Mechanisms of Biological Motor Control

Model-free Robust Optimal Feedback Mechanisms of Biological ...

引用

World Congress on Intelligent Control and Automation

作者： Tao Bian Zhong-Ping Jiang Control and Networks Lab Department of Electrical and Computer Engineering Tandon School of Engineering New York University

ISBN: (纸本)9781467384155

This paper studies human sensorimotor learning and control using the stochastic robust adaptive dynamic programming (RADP) theory. The obtained result provides a unified framework that can take into account several recently discovered phenomena, including the active regulation of motor variability, the presence of suboptimal inference, and the model-free learning, and explains how these factors may promote the sensorimotor learning. We apply our learning framework to a model of sensorimotor system, and discover remarkable consistency with different experimental observations. Moreover, a novel feature of the RADP algorithm in our learning framework is that the knowledge of a stabilizing initial control policy is not needed. All these observations further confirm our hypothesis that RADP is a sound computational principle for sensorimotor control.

关键词： Remote Access Data Processing feedback mechanism Motor Control sensorimotor system control strategy control of movement Learning

来源：评论

学校读者我要写书评

暂无评论

Improved gene selection and classification method using quantum particle swarm optimization and projection extreme learning machine

引用

Journal of Computational and Theoretical Nanoscience 2015年第12期12卷 5781-5788页

作者： Zhang, Xinman Liang, Mujia Xu, Xuebin Jia, Pukun Chen, Sushing MOE Key Lab for Intelligent Networks and Network Security School of Electronics and Information Engineering Xi'An Jiaotong University Xi'an710049 China Guangdong xi'An Jiaotong University Academy Guangdong 528000 China School of Automation Chongqing University of Posts and Telecommunications Chongqing400065 China Department of Computer and Information Science and Engineering University of Florida 32611 United States

In order to improve and accelerate the speed of gene selection and classification, an optimal and intelligent method for microarray cancer data is investigated in this paper. Based on new machine learning method theory, projection extreme learning machine (PELM) is studied in searching key gene of disease-producing, combined of quantum particle swarm optimization (QPSO) intelligent search strategy. The method has stronger search ability and quicker convergence speed than other current methods. Experiments are performed on the four microarray datasets: colon, leukemia, lymphoma, and prostate cancers. We apply quantum particle swarm optimization (QPSO) as an effective selection method and projection extreme learning machine (PELM) for classification to reduce the dimensionality of microarray datasets. The resulting feature sets contain significantly smaller subsets of important genes in very rapid computing time, with higher test accuracy and a better evaluation index by calculating the mutual information. © 2015 American Scientific Publishers All rights reserved.

关键词： Genes

来源：评论

学校读者我要写书评

暂无评论

Energy efficient cloud storage service: Key issues and challenges

Energy efficient cloud storage service: Key issues and chall...

引用

4th International Conference on Emerging Intelligent Data and Web Technologies, EIDWT 2013

作者： Negru, Catalin Pop, Florin Cristea, Valentin Bessisy, Nik Li, Jing Computer Science of Bucharest University Politehnica of Bucharest Romania School of Computing and Maths University of Derby United Kingdom Telecommunication Engineering State Key Lab. of Integrated Service Networks Xidian University China

ISBN: (纸本)9780769550442

Nowadays energy-awareness represents a big challenge for cloud computing infrastructures as the adoption of cloud computing become a certain fact and together with the increasing costs for energy, calls for energy-aware methods and techniques. The storage system represents an important factor for energy consumption in a data center. Thus this paper, in the context of cloud storage, reviews the methods and technologies used for energy-aware operation of storage systems in data centers. After surveying relevant literature in this area, this paper presents some of the key research challenges that arise when such energy-saving techniques are extended for use in cloud storage environments. © 2013 IEEE.

关键词： Energy efficiency

来源：评论

学校读者我要写书评

暂无评论

Turbo-XZ Algorithm: Low-Latency Decoders for Quantum LDPC Codes 12

Turbo-XZ Algorithm: Low-Latency Decoders for Quantum LDPC Co...

引用

12th International Symposium on Topics in Coding, ISTC 2023

作者： Raveendran, Nithin Boutillon, Emmanuel Vasic, Bane The University of Arizona Center for Quantum Networks Department of Electrical and Computer Engineering TucsonAZ85721 United States Université Bretagne Sud Lab-STICC Umr 6285 Cnrs Lorient56321 Cedex France

ISBN: (纸本)9798350326116

We propose a low latency hardware-friendly decoding framework for Calderbank-Shor-Steane (CSS) quantum low-density parity-check (QLDPC) codes under the depolarizing noise model. With a given latency constraint, the proposed decoder, referred to generally as the Turbo-XZ decoding algorithm utilizes the correlation of Pauli X and Z errors. In this framework, we introduce early stopping and switching decoders to meet latency constraints and improve error correction performance for different decoders including the bit-flip (BF), fixed BF (proposed hardware-friendly variant of BF), and normalized min-sum algorithm (nMSA). This decoding framework allows various tradeoffs in terms of latency, complexity, and decoding performance which are discussed briefly. Simulation results show that the BF-Turbo-XZ decoder performs close to (and beyond in some cases) the nMSA version with lower complexity and latency. Our proposed fixed BF approach reduces complexity with minimal performance degradation. For example with a generalized bicycle code, nMSA performs better for higher depolarizing values (p>0.02) at a higher cost, while low-complexity BF-Turbo-XZ decoders are better at low depolarizing values. © 2023 IEEE.

关键词： Error correction

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：