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2013 22nd Wireless and optical communication Conference

作者： Qinglong Luo Min Feng Chenglin Bai Hao He Weisheng Hu College of Physics Science and Information Engineering Liaocheng University State Key Lab of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University

ISBN: (纸本)9781467356985

In this letter,a WDM-OFDM-PON architecture using LDPC code is brought up to increase transmission range and system *** optical line terminal(OLT),LDPCcoded OFDM signal at 10-Gb/s is transmitted as *** each optical network unit(ONU),the optical OFDM signal is demodulated with direct detection,and on-off keying date at 2.5Gb/s is returned as *** results show that the transmission distance could exceed 20-km with negligible penalty.

关键词： passive optical network orthogonal frequencydivision multiplexing(OFDM) low-density parity-check(LDPC)

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A bidirectional multi-band 60-GHz wireless-over-fiber transmission system with compacted base station and mobile terminal using a robust mm-Wave LO free technique

A bidirectional multi-band 60-GHz wireless-over-fiber transm...

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optical Fiber communication (OFC) Conference

作者： Chenhui Ye Liang Zhang Ming Zhu Anlin Yi Lan Rao Jianjun Yu Yikai Su Sailing He Gee-Kung Chang School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA USA State Key Laboratory of Modern Optical Instrumentation Zhejiang University Hangzhou China State Key Lab of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University Shanghai China

For the first time, bidirectional multi-band multi-gigabit wireless-over-fiber transmission at 60-GHz mm-wave band has been accomplished with centrally supplied LO service. It does not require mm-wave LO devices in ea... 详细信息

ISBN: (纸本)9781557529626

关键词： Uplink Downlink optical fibers Wireless communication optical receivers optical mixing

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Dynamic bandwidth allocation& guarantee for virtualized networks in cloud

Dynamic bandwidth allocation& guarantee for virtualized netw...

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International Conference on Information, communications and Signal Processing

作者： Xuan Luo Pengfei Zhang Tong Ye Yaohui Jin Jianping Wang Network and Information Center Shanghai Jiaotong University State Key Laboratory of Advanced Optical Communication Systems & Networks Shanghai Jiaotong University Department of Computer Science City University of Hong Kong

ISBN: (纸本)9781479904327

Among all SLAs(Service Level Agreements) about network resources in the cloud, a critical problem would be achieving bandwidth guarantee under all communication environment (e.g., when misbehaved VMs exist) while keeping acceptable bandwidth utility and system scalability. In this paper, we present an architecture of dynamic bandwidth allocation and guarantee on resource fairness, to provide network performance isolation and protocol independent bandwidth guarantees. In this paper, we first discuss the business model of bandwidth guarantee for Infrastructure-as-a-Service (IaaS) cloud, and a bandwidth allocation algorithm based on redefined fairness model is proposed and realized under the novel architecture, and finally experiment shows satisfying results under various communication scenarios.

关键词： Bandwidth Switches Protocols Integrated circuits

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A Study of the Three-Term Non-Gaussian Pre-Stack Inversion Method

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Chinese Journal of Geophysics 2013年第1期55卷 55-64页

作者： Yang LIU Jia-Shu ZHANG Guang-Min HU Zhen-Hua HE Sichuan Key Lab of Signal and Information Processing Southwest Jiaotong University Chengdu 610031 China Key Laboratory of Broadband Optical Fiber Transmission and Communication Networks University of Electronic Science and Technology of China Chengdu 611731 China State Key Laboratory of Oil and Gas Reservoir Geology and Exploration Chengdu University of Technology Chengdu 610059 China

In view of the wide use of the “Gaussian distribution hypothesis of noise” in geophysical inversion problems, we study the non-Gaussian distribution characteristics of the noise in pre-stack seismic data. Upon this analysis, the concept of non-Gaussian inversion of pre-stack three-term inversion is put forward, in which the mixed-norm is proposed for suppressing both the Gaussian and non-Gaussian noises. In view of the non-derivable feature of the objective function, the Powell algorithm is used to solve the objective function. Model test and real seismic data inversion results show the correctness and reliability of the algorithm.

关键词： Prestack inversion Non-Gaussian Mixed norm Powell algorithm

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Rayleigh Noise Suppression with Cascaded RSOAs in WDM-PON system

Rayleigh Noise Suppression with Cascaded RSOAs in WDM-PON Sy...

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2013 22nd Wireless and optical communication Conference

作者： Hanlin Feng Shilin Xiao Lilin Yi Zhao Zhou Tao Qi Weisheng Hu The State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University

ISBN: (纸本)9781467356985

In single fiber bidirectional central light seeding wavelength division multiplexing passive optical network(CLS WDM-PON),Rayleigh backscattering(RB) noise is the main factor limiting system *** propose and demonstrate a cascaded reflective semiconductor optical amplifiers(RSOAs) structure to suppress signal RB noise in *** results demonstrate that upstream and downstream receiver sensitivity can be improved,with better signal RB noise tolerance in both upstream and downstream directions.

关键词： Rayleigh backscattering wavelength division multilplexing reflective semiconductor optical amplifier

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Generation of a Genuine Six-Atom Entangled state in Cavity QED

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communications in Theoretical Physics 2012年第12期58卷 823-826页

作者：李渊华王贤平桑明煌聂义友 Department of Physics Jiangxi Normal University Key Laboratory of Optoelectronic & Telecommunication of Jiangxi province State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University

We propose a potential scheme to generate a genuine six-atom entangled state [J. Phys. A 42 (2009) 415301] by using atoms in cavity QED system, where the atoms interact simultaneously with the highly detuned single-mode cavity and the strong classical driving field. Thus our approach is insensitive to both the cavity decay and thermal field.

关键词： quantum information cavity QED generation genuine six-atom entangled state

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A Self-Adaptive Scheduling (SAS) Solution for Enhancing VoIP Service Quality in OFDM-based Mobile networks

A Self-Adaptive Scheduling (SAS) Solution for Enhancing VoIP...

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IEEE International Conference on communications

作者： Tammy Chang Yang Wang Anpeng Huang Department of Electrical Engineering Stanford University California United States Institute of Network Computing and Information Systems Peking University Beijing China State Key Lab of Advanced Optical Communication Systems and Networks Peking University Beijing China

To save signaling overhead, Serai-Persistent Scheduling (SPS) is the standard for delivering Voice-over-IP (VoIP) in OFDM-based mobile networks. But uncompressed or variable-size compressed VoIP packets are problematic for SPS because they spill over the assigned semi-persistent resource whenever the ROHC (Robust Header Compression) mechanism is in an initialization or reset period, propagating system latency and accumulating unnecessary signaling overhead. In response, we propose a Self-Adaptive Scheduling (SAS) algorithm, where dynamic scheduling is used as an adaptive mechanism to assist in scheduling oversized packets, triggered by buffer information already known to the system, without requiring dedicated signaling. To analyze the performance of our proposal in theory, we created a novel theoretical model to describe VoIP traffic considering the uncompressed voice state. This is, to our best knowledge, the first effort to model the effect of uncompressed packets on VoIP performance in mobile networks from the system-level point of view. Theoretical analysis and simulation experiments validate our proposal, demonstrating its ability to enhance the VoIP user experience for a minor signaling overhead cost.

关键词： Decision support systems Quality of service Reliability

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Cooperative communications via Dual-Teleportation with Non-maximally Entanglement Measurements

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communications in Theoretical Physics 2012年第5期57卷 780-788页

作者：毛云郭迎曾贵华 School of Information Science&Engineering Central South University State Key Laboratory on Fiber-Optic Communication Networks and Optical Communication System Department of Electronic EngineeringShanghai Jiaotong University

We investigate a framework of the cooperative quantum teleportation (CQT) based on non-maximally entangled state basis (NB) measurements,instead of maximally entangled state basis (MB) *** is implemented with two consecutive conventional (or direct) quantum telportations (DQT),where unknown quantum states can be transmitted in a point-to-point *** security is based on the quantum-mechanical impossibility of local unitary transformations between non-maximally entangled *** shows that the CQT can enhance the successful transmissions by self-correcting the errors introduced in the dual-teleportations.

关键词： quantum teleportation Bell states non-maximally entangled state quantum information

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Propagation properties of controllable dark-hollow beams through fractional Fourier transform systems

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Optoelectronics Letters 2012年第1期8卷 67-71页

作者：唐斌李瑞鹏金铱蒋美萍 School of Mathematics&Physics Changzhou University State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiaotong University

Based on the definition of fractional Fourier transform(FrFT) in the cylindrical coordinate system,the propagation properties of a controllable dark-hollow beam(CDHB) are investigated in *** analytical formula is derived for the FrFT of a *** using the derived formula,the properties of a CDHB in the FrFT plane are illustrated *** results show that the properties of the intensity of the beam in the FrFT are closely related to not only the fractional order but also initial beam parameter,beam order and the lens focal length of the optical system for performing *** derived formula provides an effective and convenient way for analyzing and calculating the FrFT of a CDHB.

关键词： Magnetic materials Optoelectronic devices

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High-peak-power femtosecond pulse generation using graphene as saturated absorber and dispersion compensator

High-peak-power femtosecond pulse generation using graphene ...

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39th European Conference and Exhibition on optical communication, ECOC 2013

作者： Yi, Lilin Li, Zhengxuan Zheng, Ran Ni, Zhenhua Nan, Haiyan Liang, Zheng Ding, Rong Hu, Weisheng State Key Lab of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University Shanghai 200240 China Department of Physics Southeast University Nanjing China Graphene Research and Characterize Center Taizhou Sunano New Energy Corporation Taizhou China

We demonstrate a passively mode-locked Erbium-doped fibre laser by using CVD fabricated graphene as both saturated absorber and dispersion compensator to achieve a 12-nJ energy pulse with 303-fs width, resulting in a ... 详细信息

ISBN: (纸本)9781849197595

关键词： Graphene

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