Pub Date : 2012-04-19DOI: 10.1109/WOCC.2012.6198167
Yu-Chieh Chi, P. Peng, Hai-Han Lu, G. Lin
Coherently injection-locked and directly modulated weak-resonant-cavity laser diode for back-to-back optical 16-QAM/52-subcarrier OFDM transmission at 4Gbit/s with carrier frequency of 2.5GHz is demonstrated with 20MSa/s subcarrier symbol rate with -10dBm receiving sensitivity at 1E-5 BER.
{"title":"Coherently injection-locked weak-resonant-cavity laser diode for optical 16-QAM-OFDM transmission at 4 Gb/s","authors":"Yu-Chieh Chi, P. Peng, Hai-Han Lu, G. Lin","doi":"10.1109/WOCC.2012.6198167","DOIUrl":"https://doi.org/10.1109/WOCC.2012.6198167","url":null,"abstract":"Coherently injection-locked and directly modulated weak-resonant-cavity laser diode for back-to-back optical 16-QAM/52-subcarrier OFDM transmission at 4Gbit/s with carrier frequency of 2.5GHz is demonstrated with 20MSa/s subcarrier symbol rate with -10dBm receiving sensitivity at 1E-5 BER.","PeriodicalId":118220,"journal":{"name":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117286866","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}
Pub Date : 2012-04-19DOI: 10.1109/WOCC.2012.6198184
Changyuan Yu
Optical performance monitoring (OPM) is a potential mechanism to improve control of transmission and physical-layer fault management, which is essential for the operation of complex wavelength division multiplexing (WDM) transmission and switching systems. On the physical layer, the most important characteristics need to be monitored are chromatic dispersion (CD) and polarization mode dispersion (PMD). In this talk, we will review our dispersion monitoring techniques and their potential for enabling higher stability, reconfigurability, and flexibility in self-managed smart optical networks.
{"title":"Dispersion monitoring in high-speed optical communication systems","authors":"Changyuan Yu","doi":"10.1109/WOCC.2012.6198184","DOIUrl":"https://doi.org/10.1109/WOCC.2012.6198184","url":null,"abstract":"Optical performance monitoring (OPM) is a potential mechanism to improve control of transmission and physical-layer fault management, which is essential for the operation of complex wavelength division multiplexing (WDM) transmission and switching systems. On the physical layer, the most important characteristics need to be monitored are chromatic dispersion (CD) and polarization mode dispersion (PMD). In this talk, we will review our dispersion monitoring techniques and their potential for enabling higher stability, reconfigurability, and flexibility in self-managed smart optical networks.","PeriodicalId":118220,"journal":{"name":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115356291","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}
Pub Date : 2012-04-19DOI: 10.1109/WOCC.2012.6198161
Peiwang Chow, Y. Chau, Guangliang Ren
The Alamouti multiple-input multiple-output (MIMO) detector based on the log-likelihood ratio (LLR) selection statistic for receiver-antenna selection combining (SC) is implemented on an FPGA platform, where hardware simulation using Verilog HDL is illustrated, and the BPSK signaling is considered.
{"title":"FPGA implementation of Alamouti MIMO log-likelihood ratio selection for receiver-antenna selection combining","authors":"Peiwang Chow, Y. Chau, Guangliang Ren","doi":"10.1109/WOCC.2012.6198161","DOIUrl":"https://doi.org/10.1109/WOCC.2012.6198161","url":null,"abstract":"The Alamouti multiple-input multiple-output (MIMO) detector based on the log-likelihood ratio (LLR) selection statistic for receiver-antenna selection combining (SC) is implemented on an FPGA platform, where hardware simulation using Verilog HDL is illustrated, and the BPSK signaling is considered.","PeriodicalId":118220,"journal":{"name":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115764690","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}
Pub Date : 2012-04-19DOI: 10.1109/WOCC.2012.6198186
Yu-zheng Kuo, Jui-Pin Wu, Rui-Ren Chen, Y. Chiu
Photonic UWB pulse generation using monolithic integration of electroabsorption modulator and tapered-optical-directional coupler (TODC) is proposed. Through bias-dependent transfer efficiency, FCC-fitted UWB pulse with system demonstration is realized by valley-type transfer function.
{"title":"Photonic Ultra-wide-band doublet pulse using tapered-directional coupler integrated electroabsorption modulator","authors":"Yu-zheng Kuo, Jui-Pin Wu, Rui-Ren Chen, Y. Chiu","doi":"10.1109/WOCC.2012.6198186","DOIUrl":"https://doi.org/10.1109/WOCC.2012.6198186","url":null,"abstract":"Photonic UWB pulse generation using monolithic integration of electroabsorption modulator and tapered-optical-directional coupler (TODC) is proposed. Through bias-dependent transfer efficiency, FCC-fitted UWB pulse with system demonstration is realized by valley-type transfer function.","PeriodicalId":118220,"journal":{"name":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115016607","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}
Pub Date : 2012-04-19DOI: 10.1109/WOCC.2012.6198180
Chun-hong Lee, H. Jau, Shih-Hui Chang, Tsung-Hsien Lin
We demonstrate the lasing effect in cholesteric liquid crystal using an auxiliary differential equation finite-difference time-domain method. The transmission spectrum and laser phenomenon in cholesteric liquid crystal without and with gain medium are presented. The solver combines with four level electron system, classical electron oscillator model and Maxwell's equations. In this solver, the wavelength of emission is agreed with that of band edge of cholesteric liquid crystal. We also analyze the lasing property at different pitches and pumping rates. Threshold value can also be determined from different pumping rates.
{"title":"Simulation of laser phenomenon of cholesteric liquid crystal using axuillary differential equation finite-difference time-domain method","authors":"Chun-hong Lee, H. Jau, Shih-Hui Chang, Tsung-Hsien Lin","doi":"10.1109/WOCC.2012.6198180","DOIUrl":"https://doi.org/10.1109/WOCC.2012.6198180","url":null,"abstract":"We demonstrate the lasing effect in cholesteric liquid crystal using an auxiliary differential equation finite-difference time-domain method. The transmission spectrum and laser phenomenon in cholesteric liquid crystal without and with gain medium are presented. The solver combines with four level electron system, classical electron oscillator model and Maxwell's equations. In this solver, the wavelength of emission is agreed with that of band edge of cholesteric liquid crystal. We also analyze the lasing property at different pitches and pumping rates. Threshold value can also be determined from different pumping rates.","PeriodicalId":118220,"journal":{"name":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124807381","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}
Pub Date : 2012-04-19DOI: 10.1109/WOCC.2012.6198194
Y. Liu, C. Lai, C. Chow, C. Yeh
We propose and demonstrate an AC-power-signal-biased light-emitting-diode (LED) modulation. To minimize the signal distortion, the message signal is up-converted to a carrier of 400 KHz and 60 Hz AC-power signal are combined using our developed bias tee circuit. Measurement result shows a bit error rate (BER) below 10-8 at a transmission distance of 2 m. This technique is energy-efficient and compatible with AC LED, since AC to DC converter is not needed.
{"title":"AC-power-signal-biased LED modulation method for ubiquitous visible light communication","authors":"Y. Liu, C. Lai, C. Chow, C. Yeh","doi":"10.1109/WOCC.2012.6198194","DOIUrl":"https://doi.org/10.1109/WOCC.2012.6198194","url":null,"abstract":"We propose and demonstrate an AC-power-signal-biased light-emitting-diode (LED) modulation. To minimize the signal distortion, the message signal is up-converted to a carrier of 400 KHz and 60 Hz AC-power signal are combined using our developed bias tee circuit. Measurement result shows a bit error rate (BER) below 10-8 at a transmission distance of 2 m. This technique is energy-efficient and compatible with AC LED, since AC to DC converter is not needed.","PeriodicalId":118220,"journal":{"name":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122483000","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}
Pub Date : 2012-04-19DOI: 10.1109/WOCC.2012.6198164
M. Ramesh, P. Prabaharan, A. ShameemAnsar, P. Rekha
Mobile ad hoc networks [MANET] are typically characterized by high mobility and frequent link failures that result in low throughput and high end-to-end delay. Present approaches to multipath routing make use of pre-computed routes determined during route discovery. All the paths are maintained by means of periodic update packets unicast along each path. In existing method best path is determined and maintained only with signal strength of disjoint paths. Signal strength between nodes is only the mobility prediction factor, which does not address the durability and stability of paths. Residual energy of nodes determines stability of path contains those nodes. Also does not consider the consistency of node through the previous behaves. This paper provides a design and a simulation frame work for measuring a Decision Value metric for mobility prediction of each alternate paths in MANET. Here a Periodic update packets measure Decision Value metric [DVM] and route maintenance is possible by means of the Signal strength between nodes, Residual energy and Consistency of each hop along the alternate paths, helps protocol to select the best scalable paths.
{"title":"DVM based scalable and adaptive multipath routing in MANET for emergency rescue application","authors":"M. Ramesh, P. Prabaharan, A. ShameemAnsar, P. Rekha","doi":"10.1109/WOCC.2012.6198164","DOIUrl":"https://doi.org/10.1109/WOCC.2012.6198164","url":null,"abstract":"Mobile ad hoc networks [MANET] are typically characterized by high mobility and frequent link failures that result in low throughput and high end-to-end delay. Present approaches to multipath routing make use of pre-computed routes determined during route discovery. All the paths are maintained by means of periodic update packets unicast along each path. In existing method best path is determined and maintained only with signal strength of disjoint paths. Signal strength between nodes is only the mobility prediction factor, which does not address the durability and stability of paths. Residual energy of nodes determines stability of path contains those nodes. Also does not consider the consistency of node through the previous behaves. This paper provides a design and a simulation frame work for measuring a Decision Value metric for mobility prediction of each alternate paths in MANET. Here a Periodic update packets measure Decision Value metric [DVM] and route maintenance is possible by means of the Signal strength between nodes, Residual energy and Consistency of each hop along the alternate paths, helps protocol to select the best scalable paths.","PeriodicalId":118220,"journal":{"name":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","volume":"283 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131807897","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}
In this paper, a self-optimization model for resource allocation in cooperative relay networks based on game theory is proposed. Every node in the networks can work as a relay node for cooperative communication in the proposed model,. Both the source node and the relay node in the transmission are willing to achieve an optimal power allocation to increase system performance and transmit profits. Simulation results indicate that the self-optimized solutions can be achieved and resource used as relaying for others can be self-configured.
{"title":"Self-optimization of resource allocation in cooperative relay networks","authors":"Haitao Xu, Yueyun Chen, Li-Yu Daisy Liu, Shengsong Yang, Xianwei Zhou","doi":"10.1109/WOCC.2012.6198156","DOIUrl":"https://doi.org/10.1109/WOCC.2012.6198156","url":null,"abstract":"In this paper, a self-optimization model for resource allocation in cooperative relay networks based on game theory is proposed. Every node in the networks can work as a relay node for cooperative communication in the proposed model,. Both the source node and the relay node in the transmission are willing to achieve an optimal power allocation to increase system performance and transmit profits. Simulation results indicate that the self-optimized solutions can be achieved and resource used as relaying for others can be self-configured.","PeriodicalId":118220,"journal":{"name":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132006110","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}
Pub Date : 2012-04-19DOI: 10.1109/WOCC.2012.6198187
M. Sheen, Shin-Fuh Wang, Jun-Han Lee
A novel scheme of butterfly-type laser module packaging employing low-cost transistor outline (TO) structure is proposed. By applying a low-cost TO packaging technique, the cost and fabrication time of the butterfly-type laser module packaging was reduced and the fabrication yield was increased. The coupling efficiency of fabricated TO-based butterfly-type laser module packaging was over 70%. The results indicate that the proposed TO-based butterfly-type laser module packaging can be used in low-cost lightwave transmission systems.
{"title":"A new scheme of low-cost TO-based butterfly-type laser module packaging","authors":"M. Sheen, Shin-Fuh Wang, Jun-Han Lee","doi":"10.1109/WOCC.2012.6198187","DOIUrl":"https://doi.org/10.1109/WOCC.2012.6198187","url":null,"abstract":"A novel scheme of butterfly-type laser module packaging employing low-cost transistor outline (TO) structure is proposed. By applying a low-cost TO packaging technique, the cost and fabrication time of the butterfly-type laser module packaging was reduced and the fabrication yield was increased. The coupling efficiency of fabricated TO-based butterfly-type laser module packaging was over 70%. The results indicate that the proposed TO-based butterfly-type laser module packaging can be used in low-cost lightwave transmission systems.","PeriodicalId":118220,"journal":{"name":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115193152","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}
Pub Date : 2012-04-19DOI: 10.1109/WOCC.2012.6198165
Chyong-Hua Chen
A compact waveguide crossing constructed by three cascaded multimode tapers on each branch is numerically analyzed by finite difference time domain method, which possesses the size of 3920 nm×3920 nm, the insertion loss of 0.187 dB and the crosstalk of -47.58 dB at the wavelength of 1550 nm and broad transmission spectrum ranging from 1500 to 1600 nm.
{"title":"Waveguide crossings by use of mutlimode tapered structures","authors":"Chyong-Hua Chen","doi":"10.1109/WOCC.2012.6198165","DOIUrl":"https://doi.org/10.1109/WOCC.2012.6198165","url":null,"abstract":"A compact waveguide crossing constructed by three cascaded multimode tapers on each branch is numerically analyzed by finite difference time domain method, which possesses the size of 3920 nm×3920 nm, the insertion loss of 0.187 dB and the crosstalk of -47.58 dB at the wavelength of 1550 nm and broad transmission spectrum ranging from 1500 to 1600 nm.","PeriodicalId":118220,"journal":{"name":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","volume":"78 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114112464","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}
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