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A new fiber length measuement method with high precision and large absolute length based on FDL 一种基于FDL的高精度大绝对长度光纤长度测量新方法
The 19th Annual Wireless and Optical Communications Conference (WOCC 2010) Pub Date : 2010-05-14 DOI: 10.1109/WOCC.2010.5510650
Shuguang Li, Xinwan Li, Jianguo Shen, Zehua Hong, Jianping Chen
{"title":"A new fiber length measuement method with high precision and large absolute length based on FDL","authors":"Shuguang Li, Xinwan Li, Jianguo Shen, Zehua Hong, Jianping Chen","doi":"10.1109/WOCC.2010.5510650","DOIUrl":"https://doi.org/10.1109/WOCC.2010.5510650","url":null,"abstract":"We propose and demonstrate a new fiber length measurement method, which supports large absolute length and high accuracy measurement of fiber. This method is based on multi-stage optical fiber delay lines structure and self-calibration method with Precision Reflectometer. The precision maintains 20 µm and the enlarged measurement range reaches to 6395.43mm.","PeriodicalId":427398,"journal":{"name":"The 19th Annual Wireless and Optical Communications Conference (WOCC 2010)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121614670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A game algorithm of dynamic spectrum allocation based on spectrum difference 基于频谱差的动态频谱分配博弈算法
The 19th Annual Wireless and Optical Communications Conference (WOCC 2010) Pub Date : 2010-05-14 DOI: 10.1109/WOCC.2010.5510648
Xin-chun Zhang, Shi-biao He, Jiang Sun
{"title":"A game algorithm of dynamic spectrum allocation based on spectrum difference","authors":"Xin-chun Zhang, Shi-biao He, Jiang Sun","doi":"10.1109/WOCC.2010.5510648","DOIUrl":"https://doi.org/10.1109/WOCC.2010.5510648","url":null,"abstract":"Game theory-based cognitive radio dynamic spectrum allocation, is one of the hot researches of the field of cognitive radio. Taking into account the differences in the spectrum, using a Cournot game model, and adding the spectral similarity matrix to the original pricing function, a new utility function that makes the spectrum allocation more close to the actual network environment is proposed. Simulation analysis shows that, the allocation algorithm considering the differences in the spectrum is more diverse than the original algorithm, and is suitable for the allocation of the actual network.","PeriodicalId":427398,"journal":{"name":"The 19th Annual Wireless and Optical Communications Conference (WOCC 2010)","volume":"20 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114016455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Inter-FE Topology Discovery and maintenance technology on ForCES routers ForCES路由器的Inter-FE拓扑发现与维护技术
The 19th Annual Wireless and Optical Communications Conference (WOCC 2010) Pub Date : 2010-05-14 DOI: 10.1109/WOCC.2010.5510651
Weiping Yu, Bin Zhuge, Weiming Wang
{"title":"Inter-FE Topology Discovery and maintenance technology on ForCES routers","authors":"Weiping Yu, Bin Zhuge, Weiming Wang","doi":"10.1109/WOCC.2010.5510651","DOIUrl":"https://doi.org/10.1109/WOCC.2010.5510651","url":null,"abstract":"This paper presents an inter-FE topology discovery technology on ForCES router, it introduced a new type of topology discovery protocol ITDP (Inter-FE Topology Discovery Protocol). ITDP broadcast the prescribed format of the ITDP packets to each ITDP protocol port when FE is initialized, adjacent FE put these information into a neighbor table after the receipt of ITDP message packet, constructed FE topology. This article also researches the FE topology maintenance, use the FE heartbeat mechanism to achieve the maintenance.","PeriodicalId":427398,"journal":{"name":"The 19th Annual Wireless and Optical Communications Conference (WOCC 2010)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114243154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
High-speed optical signal processing for telecom applications 电信应用的高速光信号处理
The 19th Annual Wireless and Optical Communications Conference (WOCC 2010) Pub Date : 2010-05-14 DOI: 10.1109/WOCC.2010.5510682
Yong Liu, Shang-jian Zhang, Yong-zhi Liu, F. Gomez-Agis, E. Tangdiongga, H. Dorren
{"title":"High-speed optical signal processing for telecom applications","authors":"Yong Liu, Shang-jian Zhang, Yong-zhi Liu, F. Gomez-Agis, E. Tangdiongga, H. Dorren","doi":"10.1109/WOCC.2010.5510682","DOIUrl":"https://doi.org/10.1109/WOCC.2010.5510682","url":null,"abstract":"We discuss high-speed optical signal processing for telecom applications. We focus on the optical wavelength conversion and self-clocking, respectively. In the optical wavelength conversion, we report 40 Gb/s wavelength conversion that is capable of converting the same wavelength using a single semiconductor optical amplifier. Experimental proofs are presented. In addition, we report a novel self-clocking method based on in-band clock pilot insertion at the transmission data signal. The method provides clock recovery without an ultrafast phase comparator and a phase-locked loop in the receiver. Fast synchronization, low timing jitter and a highly stable recovered clock is demonstrated from 160 Gb/s OTDM data signal after 51-km fiber transmission.","PeriodicalId":427398,"journal":{"name":"The 19th Annual Wireless and Optical Communications Conference (WOCC 2010)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117159411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Parallel processing clock synchronization-dispersion equalization combining loop in 112Gb/s optical coherent receivers 112Gb/s光相干接收机中并行处理时钟同步-色散均衡组合环路
The 19th Annual Wireless and Optical Communications Conference (WOCC 2010) Pub Date : 2010-05-14 DOI: 10.1109/WOCC.2010.5510669
Yangyang Fan, Xue Chen, Weiqin Zhou, Xian Zhou
{"title":"Parallel processing clock synchronization-dispersion equalization combining loop in 112Gb/s optical coherent receivers","authors":"Yangyang Fan, Xue Chen, Weiqin Zhou, Xian Zhou","doi":"10.1109/WOCC.2010.5510669","DOIUrl":"https://doi.org/10.1109/WOCC.2010.5510669","url":null,"abstract":"In optical coherent receivers, the timing error detector in synchronization loop can't detect timing errors properly from signals distorted by large dispersion and the signal processing rate in the loop is very difficult to reach required 56GHz in the 112 Gb/s PM-(D)QPSK system because of the limit of current electronic circuits. This paper proposes a novel parallel processing VCO clock synchronization loop in combination with dispersion equalization, which fulfills synchronization, equalization and polarization de-multiplexing simultaneously under the control of single VCO. Simulink simulation demonstrates the satisfied performance of the proposed parallel processing loop with 42 GHz sampling frequency and 466.67MHz digital signal processing rate.","PeriodicalId":427398,"journal":{"name":"The 19th Annual Wireless and Optical Communications Conference (WOCC 2010)","volume":"25 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124904817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Analysis of PCE-based wavelength assignment schemes in wavelength switched optical networks 波长交换光网络中基于pce的波长分配方案分析
The 19th Annual Wireless and Optical Communications Conference (WOCC 2010) Pub Date : 2010-05-14 DOI: 10.1109/WOCC.2010.5510610
Yongli Zhao, Jie Zhang, Haibin Huang, W. Gu, Yuefeng Ji
{"title":"Analysis of PCE-based wavelength assignment schemes in wavelength switched optical networks","authors":"Yongli Zhao, Jie Zhang, Haibin Huang, W. Gu, Yuefeng Ji","doi":"10.1109/WOCC.2010.5510610","DOIUrl":"https://doi.org/10.1109/WOCC.2010.5510610","url":null,"abstract":"As a key problem in wavelength switched optical networks (WSON) in which wavelengths are the most important resources, routing and wavelength assignment (RWA) problem has been researched extensively. Due to the advantages of path computation in multi-layer and multi-domain networks, especially in multi-constraints scenarios, path computation element (PCE) has been introduced into WSON, which provides a better approach to the solution of RWA problem in WSON. A novel PCE-based wavelength assignment scheme CRWA-PQ is proposed in wavelength switched optical networks (WSON), and compared with several other schemes by simulation using OMNeT++.","PeriodicalId":427398,"journal":{"name":"The 19th Annual Wireless and Optical Communications Conference (WOCC 2010)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122638275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Engineering innovation: Prof. Charles K. Kao's Nobel Prize 工程创新:高锟教授获诺贝尔奖
The 19th Annual Wireless and Optical Communications Conference (WOCC 2010) Pub Date : 2010-05-14 DOI: 10.1109/WOCC.2010.5510631
C. Fan
{"title":"Engineering innovation: Prof. Charles K. Kao's Nobel Prize","authors":"C. Fan","doi":"10.1109/WOCC.2010.5510631","DOIUrl":"https://doi.org/10.1109/WOCC.2010.5510631","url":null,"abstract":"Issues like why Kao's engineering related innovation is awarded the Nobel Prize in Physics 2009, why he is recognized as one who initiated both the search for and the development of low-loss fiber, why his achievements is regarded as groundbreaking, how does Kao evaluate himself and his achievement, and enlightenment we can learn on engineering innovation from Prof. Kao's career are discussed in this presentation.","PeriodicalId":427398,"journal":{"name":"The 19th Annual Wireless and Optical Communications Conference (WOCC 2010)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125511249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of smooth ultra wideband pulses exploiting non-orthogonal properties of the Hermite pulses 利用埃尔米特脉冲的非正交特性设计光滑超宽带脉冲
The 19th Annual Wireless and Optical Communications Conference (WOCC 2010) Pub Date : 2010-05-14 DOI: 10.1109/WOCC.2010.5510667
Alex Cartagena Gordillo, I. Balasingham
{"title":"Design of smooth ultra wideband pulses exploiting non-orthogonal properties of the Hermite pulses","authors":"Alex Cartagena Gordillo, I. Balasingham","doi":"10.1109/WOCC.2010.5510667","DOIUrl":"https://doi.org/10.1109/WOCC.2010.5510667","url":null,"abstract":"This paper describes a method for designing smooth ultra wideband pulses that can efficiently fit symmetric (with respect to a central frequency) spectrum masks. This method relies on the fact that the sum of continuous functions is continuous and the time and frequency characteristics of the Hermite pulses. We show that the nth Hermite pulse spectrum can be discretized into n + 1 sub-bands and, to some extent, control their individual amplitudes without losing the softness of its time domain counterpart. However, Hermite pulses spectrum occupancy is not optimal because of zeros in their spectrum, therefore, we further propose to combine two different spectrum-modified Hermite pulses to achieve smooth and spectrum efficient UWB pulses for single-pulse ultra wideband applications.","PeriodicalId":427398,"journal":{"name":"The 19th Annual Wireless and Optical Communications Conference (WOCC 2010)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126143278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Fast genetic algorithm for bits allocation in OFDM based cognitive radio systems 基于OFDM认知无线电系统位分配的快速遗传算法
The 19th Annual Wireless and Optical Communications Conference (WOCC 2010) Pub Date : 2010-05-14 DOI: 10.1109/WOCC.2010.5510609
Mindi Yuan, Shaowei Wang, S. Du
{"title":"Fast genetic algorithm for bits allocation in OFDM based cognitive radio systems","authors":"Mindi Yuan, Shaowei Wang, S. Du","doi":"10.1109/WOCC.2010.5510609","DOIUrl":"https://doi.org/10.1109/WOCC.2010.5510609","url":null,"abstract":"In this paper, we propose a fast genetic algorithm (FGA) for bits allocation in OFDM based cognitive radio systems. The bits allocation in OFDM subchannels is modeled as a binary sequences search problem, which is NP-Hard. First, the bits with the least cost in each subchannel are formulated as a possible solution with a predefined probability. Then a genetic-like algorithm is used to search the current local optima, which have the most allocated bits. The algorithm terminates until the total power is consumed or the mutual interference is over-the-threshold. Simulation results show that the performance of FGA is close to the optimal solution obtained by commercial software.","PeriodicalId":427398,"journal":{"name":"The 19th Annual Wireless and Optical Communications Conference (WOCC 2010)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128215628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
On-line signature verification based on Gabor features 基于Gabor特征的在线签名验证
The 19th Annual Wireless and Optical Communications Conference (WOCC 2010) Pub Date : 2010-05-14 DOI: 10.1109/WOCC.2010.5510683
Xue Ling, Yunhong Wang, Zhaoxiang Zhang, Yiding Wang
{"title":"On-line signature verification based on Gabor features","authors":"Xue Ling, Yunhong Wang, Zhaoxiang Zhang, Yiding Wang","doi":"10.1109/WOCC.2010.5510683","DOIUrl":"https://doi.org/10.1109/WOCC.2010.5510683","url":null,"abstract":"In this paper, the local features obtained from the signature has been used to create the texture image based on the spatio-temporal correlation matrix. The Gabor wavelets exhibit desirable characteristics of spatial locality and orientation selectivity, and are optimally localized in the space and frequency domains. So it has been chosen to extract the Gabor features of the image. Signature is a small sample point problem and Support vector machine (SVM) is especially fit for two classes' problem of small sample. The Gabor features vector has been imported to the SVM classifier and the classification result is obtained. The methods proposed in this paper are validated on the SVC 2004 database and inspiring results are obtained.","PeriodicalId":427398,"journal":{"name":"The 19th Annual Wireless and Optical Communications Conference (WOCC 2010)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115989700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
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