检索结果-内蒙古大学图书馆

7th International Conference on Information, communications and Signal Processing, ICICS 2009

作者： Chang, Zhijuan Tang, Jianxiong Jin, Yaohui State Key Lab. of Advanced Optical Communication System and Network Shanghai Jiao Tong University Shanghai 200240 China

ISBN: (纸本)9781424446575

The paper presents a novel energy efficient routing scheme for photonic network on chip (PNoC) based on the micro-resonator which takes the insertion loss and the path-setup latency into consideration in order to design a high performance per watt multi-processors. The path-setup latency is a major contributor to the whole system's latency that has something to do with queuing. And insertion loss which has impact on power consumption is closely related to the number of micro-resonators in on state. To solve the multi-objective optimization problem, we design a straight line first heuristic routing scheme. The goal of this routing scheme is to reduce the path-setup latency and insertion loss. Simulation results show that this scheme can low the latency with lower the insertion loss as little as possible. ©2009 IEEE.

关键词： Insertion losses

来源：评论

学校读者我要写书评

暂无评论

Performance analysis of optical burst switching node with limited wavelength conversion capabilities

引用

Journal of Central South University 2009年第5期16卷 794-801页

作者：许毅史开源范戈 State Key Laboratory of Advanced Optical Communication System and Network Shanghai Jiao Tong University Weapon and Task System Research Office 92728 Army of the Chinese People's Liberation Army

The systematical and scalab.e frameworks were provided for estimating the blocking probabilities under asynchronous traffic in optical burst switching(OBS) nodes with limited wavelength conversion capability(LWCC) . The relevant system architectures of limited range and limited number of wavelength converters(WCs) deployed by a share-per-fiber(SPF) mode were developed,and the novel theoretical analysis of node blocking probability was derived by combining the calculation of discouraged arrival rate in a birth-death process and two-dimensional Markov chain model of SPF. The simulation results on single node performance verify the accuracy and effectiveness of the analysis models. Under most scenarios,it is difficult to distinguish the plots generated by the analysis and simulation. As the conversion degree increases,the accuracy of the analysis model worsens slightly. However,the utmost error on burst loss probability is far less than one order of magnitude and hence,still allows for an accurate estimate. Some results are of actual significance to the construction of next-generation commercial OBS backbones.

关键词： optical burst switching （OBS） limited range wavelength conversion （LRWC） wavelength converter burst contention burst loss probability

来源：评论

学校读者我要写书评

暂无评论

Collapse and Revival of an Atomic Beam Interacting with a Coherent state Light Field

引用

Chinese Physics Letters 2009年第12期26卷 87-90页

作者：李犇陈景标 Institute of Quantum Electronics and State Key Laboratory of Advanced Optical Communication System and Network School of Electronics Engineering and Computer Science Peking University Beijing 100871

We report on the phenomena of the periodic spontaneous collapse and revival in the dynamics of an atomic beam interacting with a single-mode and coherent-state light field. Conventional collapse and revival by Eberly et al. [Phys. Rev. Lett. 44（1980）1323 ] are presented in the case of the evolution with time of the population inversion. Here, we study the evolution with coupling strength of population inversion. We define the collapse and revival coupling strengths as characteristic parameters to describe the above collapse and revival. Furthermore, we present the analytic formulas for the population inversion, the collapse and revival coupling strengths.

关键词： Atomic and molecular physics Optics quantum optics and lasers

来源：评论

学校读者我要写书评

暂无评论

Hybrid information retrieval policies based on cooperative cache in mobile P2P networks

引用

中国高等学校学术文摘·计算机科学 2009年第3期3卷 381-395页

作者： Quanqing XU Hengtao SHEN Zaiben CHEN Bin CUI Xiaofang ZHOU Yafei DAI State Key Lab for Advanced Optical Communication System & Networks Peking University Beijing 100871 China School of Information Technology and Electrical Engineering The University of Queensland Brisbane Australia

The concept of Peer-to-Peer (P2P) has been in-troduced into mobile networks, which has led to the emer-gence of mobile P2P networks, and originated potential ap-plications in many fields. However, mobile P2P networks are subject to the limitations of transmission range, and highly dynamic and unpredictable network topology, giving rise to many new challenges for efficient information retrieval. In this paper, we propose an automatic and economical hybrid information retrieval approach based on cooperative cache. In this method, the region covered by a mobile P2P network is partitioned into subregions, each of which is identified by a unique ID and known to all peers. All the subregions then constitute a mobile Kademlia (MKad) network. The pro-posed hybrid retrieval approach aims to utilize the flooding-based and Distributed Hash Table (DHT)-based schemes in MKad for indexing and searching according to the designed utility functions. To further facilitate information retrieval, we present an effective cache update method by considering all relevant factors. At the same time, the combination of two different methods for cache update is also introduced. One of them is pull based on time stamp including two different pulls: an on-demand pull and a periodical pull, and the other is a push strategy using update records. Furthermore, we provide detailed mathematical analysis on the cache hit ratio of our approach. Simulation experiments in NS-2 showed that the proposed approach is more accurate and efficient than the existing methods.

关键词： peer-to-peer (P2P) flooding mobile Kadem-lia hybrid information retrieval cache update cache con-sistency

来源：评论

学校读者我要写书评

暂无评论

On the Feasibility of Reconfigurable Photonic network on Chip

On the Feasibility of Reconfigurable Photonic Network on Chi...

引用

Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2009

作者： Jin, Yaohui Tang, Jianxiong Chang, Zhijuan Gao, Yu Hu, Weisheng State Key Lab of Advanced Optical Communication System and Network Shanghai Jiao Tong university Shanghai 200240 China

Reconfigurable photonic network formulti-processor on chip communication is considered. Withdifferent application pattern, this architecture can significantlyimprove the latency performance of multi-processor chips. &... 详细信息

ISBN: (纸本)9781424438303

关键词： network-on-chip

来源：评论

学校读者我要写书评

暂无评论

Deflection routing in multi-channel photonic network on chip architecture

Deflection routing in multi-channel photonic network on chip...

引用

network Architectures, Management, and Applications VII

作者： Tang, Jianxiong Jin, Yaohui Chang, Zhijuan State Key Lab of Advanced Optical Communication System and Network Shanghai Jiao Tong University Shanghai 200240 China

ISBN: (纸本)9780819480354

Ultralow-latency and less power consumption have become necessary in multi-processor interconnection network on chip, photonic interconnection as a solution to meet above requirement, provides high performance interconnection on chip. But the photonic network on chip architecture design and performance is limited because photonic interconnection hasn't buffer, photonic network architecture must be designed to relieve this limitation. In this paper, we present a multi-channel photonic network on chip architecture employing deflection routing, optical data packets can inject/eject from processor core by four channels at the same time. Simulation result shows this network architecture has 60% latency decrease compared to generic photonic network on chip, and the photonic network architecture is only consume 7% power of the electronic interconnection network on chip with the same scale. © 2009 SPIE-OSA-IEEE.

关键词： network-on-chip

来源：评论

学校读者我要写书评

暂无评论

Dynamic overlay routing based on active probing measurements: An emulation study

Dynamic overlay routing based on active probing measurements...

引用

network Architectures, Management, and Applications VII

作者： Zhang, Xinxin Ye, Wei Jin, Yaohui State Key Lab of Advanced Optical Communication System and Network Shanghai Jiao Tong Univ. Shanghai China

ISBN: (纸本)9780819480354

Recent studies have shown that path diversity provided by overlay networks brings about possibilities to choose alternate optimal path against default one. In the present paper, we present a novel routing mechanism which chooses path based on a composite metric, whose comprising individual metrics are determined by active probing measurements including delay, jitter and bandwidth on the overlay network in a real-time fashion. The applicability of this mechanism is examined under overlay emulation environment, which is supported by the performance data collected from a real enterprise overlay network. © 2009 SPIE-OSA-IEEE.

关键词： network routing

来源：评论

学校读者我要写书评

暂无评论

Proposal of A star-16QAM system based on Intersymbol Interference (ISI) suppression and coherent detection

Proposal of A star-16QAM system based on Intersymbol Interfe...

引用

Photonics and Optoelectronics Meetings, POEM 2009 - Fiber Optic communication and Sensors

作者： Zhang, Liang Hu, Xiaofeng Wang, Tao Liu, Qi Su, Yikai State Key Lab. of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University Shanghai200240 China

ISBN: (纸本)9780819479037

We propose a 40Gbit/s star-16QAM(to define) system based on ISI(to define)-suppression technology and coherent detection. ISI-free BPSK optical signals generated by Mach-Zehnder modulators (MZM) and continuous wave (CW) lights are used to realize a star-16QAM signal. As a result, the obtained star-16QAM signal is also ISI-free. It turns out that the proposed ISI free star-16QAM has better performance in terms of eye opening and constellation diagram comparing with two conventional star-16QAM signals transmitted through 80-km standard single-mode fiber (SSMF) and detected by a coherent receiver. © 2009 Copyright SPIE - The International Society for optical Engineering.

关键词： Intersymbol interference

来源：评论

学校读者我要写书评

暂无评论

Preengaging control protocol to enhance scalab.lity and Qos in large-scale optical networks

Preengaging control protocol to enhance scalability and Qos ...

引用

2009 14th OptoElectronics and communications Conference, OECC 2009

作者： Wei, Li Zhan, Qin Anpeng, Huang Linzhen, Xie Anshi, Xu State Key Lab. of Advanced Optical Communication Systems and Networks Peking University Beijing China School of Information Science and Technology Beijing Institute of Technology Beijing China

To provide an end-to-end QoS-guaranteed path crossing multiple self-administrative domains in a large-size optical network, a preengaging control protocol is proposed, in which inter-domain distributed control approac... 详细信息

ISBN: (纸本)9781424441037

关键词： Fiber optic networks

来源：评论

学校读者我要写书评

暂无评论

On the Efficiency of Inter-Domain state Advertising in Multi-Domain networks

On the Efficiency of Inter-Domain State Advertising in Multi...

引用

GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference

作者： Yingdi Yu Yaohui Jin Weiqiang Sun Wei Guo Weisheng Hu State Key Laboratory of Advanced Optical Communication System and Network Shanghai Jiaotong University Shanghai China

In this paper, we study the efficiency of inter-domain state advertising in multi-domain networks, in which the intra-domain topology is substituted with a full-mesh topology of abstract links interconnecting the border nodes of the domain. The advertising trigger rate of individual abstract link is taken as the metric of efficiency. We present an analytical model that reveals the contributions of different physical links to the advertising trigger rate of individual abstract links. According to the model, we propose a state based advertising mechanism, called partial link based advertising (PLA) which can discern and advertise the state variation of individual abstract link by monitoring only a portion of physical links. We formulate the problem of how to optimally selecting physical links to monitor, and provide a heuristic algorithm for link selection. Results show that the PLA performs more efficiently than existing mechanisms in terms of advertising trigger rate and blocking probability.

关键词： Advertising Floods Tellurium network topology Analytical models Programmable logic arrays Monitoring Frequency Sun optical fiber communication

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：