The Experts below are selected from a list of 7209 Experts worldwide ranked by ideXlab platform
Ming-fang Huang - One of the best experts on this subject based on the ideXlab platform.
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210-km Bidirectional Transmission system with a novel four-port interleaver to facilitate unidirectional amplification
IEEE Photonics Technology Letters, 2006Co-Authors: Ming-fang Huang, J. Chen, Kai-ming FengAbstract:A novel Bidirectional Transmission system is proposed and experimentally demonstrated using a four-port interleaver to enable unidirectional amplification. Following Bidirectional Transmission through 210 km of standard single-mode fibers, sensitivity variations of less than 0.2 dB, with a bit-error rate level of 10/sup -9/ at 10 Gb/s, were observed between Bidirectional and unidirectional Transmissions.
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Wavelength-interleaving Bidirectional Transmission system using unidirectional amplification in a 5/spl times/100 km recirculating loop
IEEE Photonics Technology Letters, 2006Co-Authors: Ming-fang Huang, Kai-ming Feng, Jing-heng Chen, Tse-yu Lin, Chia-chien Wei, Sien ChiAbstract:This investigation presents a novel 50-GHz interleaved Bidirectional Transmission system with eight wavelengths that uses four-port interleavers in a Bidirectional recirculating loop. This Bidirectional configuration shares optical components in the fiber network and an interleaver is utilized to enable unidirectional amplification in an erbium-doped fiber amplifier to block noise associated with Rayleigh backscattering. After Bidirectional Transmission through 500-km LEAF fibers in the recirculating loop, power penalties of less than 2.5 dB were achieved at 10 Gb/s for all channels
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Novel four-port interleavers facilitate unidirectional amplification for wavelength-interleaving Bidirectional Transmission system
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006Co-Authors: Ming-fang Huang, Kai-ming Feng, Tse-yu Lin, Chia-chien Wei, Jason, Sien ChiAbstract:A novel 50-GHz interleaved Bidirectional Transmission system is proposed and experimentally demonstrated using a four-port interleaver to enable unidirectional amplification in a recirculating loop. After 500-Km, < 2.5-dB power penalty has been achieved at 10-Gb/s.
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Using a novel four-port interleaver to enable unidirectional amplification in a 210-km Bidirectional Transmission system
2005 IEEE LEOS Annual Meeting Conference Proceedings, 2005Co-Authors: Ming-fang Huang, Kai-ming Feng, Jing-heng Chen, Tse-yu Lin, Chia-chien Wei, Chung-yu Lai, Sien ChiAbstract:We proposed and experimentally demonstrated a Bidirectional Transmission system by using a novel four-port interleaver to enable unidirectional amplification. After 210-km Transmission, less than 0.2-dB sensitivity variations were observed between Bidirectional and unidirectional Transmissions
Sien Chi - One of the best experts on this subject based on the ideXlab platform.
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Novel four-port interleavers facilitate unidirectional amplification for wavelength-interleaving Bidirectional Transmission system
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006Co-Authors: Ming-fang Huang, Kai-ming Feng, Tse-yu Lin, Chia-chien Wei, Jason, Sien ChiAbstract:A novel 50-GHz interleaved Bidirectional Transmission system is proposed and experimentally demonstrated using a four-port interleaver to enable unidirectional amplification in a recirculating loop. After 500-Km, < 2.5-dB power penalty has been achieved at 10-Gb/s.
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Wavelength-interleaving Bidirectional Transmission system using unidirectional amplification in a 5/spl times/100 km recirculating loop
IEEE Photonics Technology Letters, 2006Co-Authors: Ming-fang Huang, Kai-ming Feng, Jing-heng Chen, Tse-yu Lin, Chia-chien Wei, Sien ChiAbstract:This investigation presents a novel 50-GHz interleaved Bidirectional Transmission system with eight wavelengths that uses four-port interleavers in a Bidirectional recirculating loop. This Bidirectional configuration shares optical components in the fiber network and an interleaver is utilized to enable unidirectional amplification in an erbium-doped fiber amplifier to block noise associated with Rayleigh backscattering. After Bidirectional Transmission through 500-km LEAF fibers in the recirculating loop, power penalties of less than 2.5 dB were achieved at 10 Gb/s for all channels
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Using a novel four-port interleaver to enable unidirectional amplification in a 210-km Bidirectional Transmission system
2005 IEEE LEOS Annual Meeting Conference Proceedings, 2005Co-Authors: Ming-fang Huang, Kai-ming Feng, Jing-heng Chen, Tse-yu Lin, Chia-chien Wei, Chung-yu Lai, Sien ChiAbstract:We proposed and experimentally demonstrated a Bidirectional Transmission system by using a novel four-port interleaver to enable unidirectional amplification. After 210-km Transmission, less than 0.2-dB sensitivity variations were observed between Bidirectional and unidirectional Transmissions
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Repeated Bidirectional Transmission Using Two 4-Port Optical Circulators and a Bidirectional EDFA without Isolators
Optical Fiber Technology, 1999Co-Authors: Shien-kuei Liaw, Sien ChiAbstract:Abstract By using a newly designed Bidirectional erbium-doped fiber amplifier, we demonstrated a 2 × 2.5 Gb/s repeated Bidirectional Transmission over a 100-km single-mode fiber. Two tunable optical bandpass filters were used to suppress the Rayleigh backscattering and amplified spontaneous emission in the Bidirectional Transmission system. The bit error rate performances were measured for both directions. A negligible power penalty of 0.2 dB for the 2 × 2.5 Gb/s Transmission due to backreflections was observed when comparing the Bidirectional Transmission with single-channel, unidirectional Transmission.
Kai-ming Feng - One of the best experts on this subject based on the ideXlab platform.
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210-km Bidirectional Transmission system with a novel four-port interleaver to facilitate unidirectional amplification
IEEE Photonics Technology Letters, 2006Co-Authors: Ming-fang Huang, J. Chen, Kai-ming FengAbstract:A novel Bidirectional Transmission system is proposed and experimentally demonstrated using a four-port interleaver to enable unidirectional amplification. Following Bidirectional Transmission through 210 km of standard single-mode fibers, sensitivity variations of less than 0.2 dB, with a bit-error rate level of 10/sup -9/ at 10 Gb/s, were observed between Bidirectional and unidirectional Transmissions.
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Wavelength-interleaving Bidirectional Transmission system using unidirectional amplification in a 5/spl times/100 km recirculating loop
IEEE Photonics Technology Letters, 2006Co-Authors: Ming-fang Huang, Kai-ming Feng, Jing-heng Chen, Tse-yu Lin, Chia-chien Wei, Sien ChiAbstract:This investigation presents a novel 50-GHz interleaved Bidirectional Transmission system with eight wavelengths that uses four-port interleavers in a Bidirectional recirculating loop. This Bidirectional configuration shares optical components in the fiber network and an interleaver is utilized to enable unidirectional amplification in an erbium-doped fiber amplifier to block noise associated with Rayleigh backscattering. After Bidirectional Transmission through 500-km LEAF fibers in the recirculating loop, power penalties of less than 2.5 dB were achieved at 10 Gb/s for all channels
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Novel four-port interleavers facilitate unidirectional amplification for wavelength-interleaving Bidirectional Transmission system
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006Co-Authors: Ming-fang Huang, Kai-ming Feng, Tse-yu Lin, Chia-chien Wei, Jason, Sien ChiAbstract:A novel 50-GHz interleaved Bidirectional Transmission system is proposed and experimentally demonstrated using a four-port interleaver to enable unidirectional amplification in a recirculating loop. After 500-Km, < 2.5-dB power penalty has been achieved at 10-Gb/s.
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Using a novel four-port interleaver to enable unidirectional amplification in a 210-km Bidirectional Transmission system
2005 IEEE LEOS Annual Meeting Conference Proceedings, 2005Co-Authors: Ming-fang Huang, Kai-ming Feng, Jing-heng Chen, Tse-yu Lin, Chia-chien Wei, Chung-yu Lai, Sien ChiAbstract:We proposed and experimentally demonstrated a Bidirectional Transmission system by using a novel four-port interleaver to enable unidirectional amplification. After 210-km Transmission, less than 0.2-dB sensitivity variations were observed between Bidirectional and unidirectional Transmissions
Jiangnan Xiao - One of the best experts on this subject based on the ideXlab platform.
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Full-duplex Bidirectional Transmission of 10-Gb/s millimeter-wave QPSK signal in E-band optical wireless link.
Optics express, 2014Co-Authors: Yuan Fang, Nan Chi, Jiangnan XiaoAbstract:We experimentally demonstrated full-duplex Bidirectional Transmission of 10-Gb/s millimeter-wave (mm-wave) quadrature phase shift keying (QPSK) signal in E-band (71–76 GHz and 81–86 GHz) optical wireless link. Single-mode fibers (SMF) are connected at both sides of the antenna for uplink and downlink which realize 40-km SMF and 2-m wireless link for Bidirectional Transmission simultaneously. We utilized multi-level modulation format and coherent detection in such E-band optical wireless link for the first time. Mm-wave QPSK signal is generated by photonic technique to increase spectrum efficiency and received signal is coherently detected to improve receiver sensitivity. After the coherent detection, digital signal processing is utilized to compensate impairments of devices and Transmission link.
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OFC - Full-duplex Bidirectional Transmission of 10-Gb/s millimeter-wave QPSK signal in E-band optical wireless link
Optical Fiber Communication Conference, 2014Co-Authors: Yuan Fang, Junwen Zhang, Jiangnan XiaoAbstract:We proposed and experimentally demonstrated full-duplex Bidirectional Transmission of 10-Gb/s millimeter-wave QPSK signal in E-band optical wireless link with coherent detection and digital signal processing for emergency communication.
Domenico Giustiniano - One of the best experts on this subject based on the ideXlab platform.
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Intra-Frame Bidirectional Transmission in Networks of Visible LEDs
IEEE ACM Transactions on Networking, 2016Co-Authors: Qing Wang, Domenico GiustinianoAbstract:The optical antenna’s directionality of nodes forming a visible light communication (VLC) network, i.e., their field-of-view (FOV), varies greatly from device to device. This encompasses wide FOVs of ambient light infrastructure and directional FOVs of light from low-end embedded devices. This variety of light propagation can severely affect the Transmission reliability, despite pointing the devices to each other may seem enough for a reliable communication. The presence of interference among nodes with different FOVs makes traditional access protocols in VLC unreliable, and it also exacerbates the hidden-node problem. In this paper, we propose a carrier sensing multiple access/collision detection and hidden avoidance (CSMA/CD-HA) medium access control protocol for a network, where each node solely uses one light-emitting diode to transmit and receive data. The CSMA/CD-HA can enable in-band intra-frame Bidirectional Transmission with just one optical antenna. The key idea is to exploit the intra-frame data symbols without the emission of light to introduce an embedded communication channel. This approach enables the Transmission of additional data while receiving in the same optical frequency band, and it makes the communication robust to different types of FOVs. We implement the CSMA/CD-HA protocol in a software-defined embedded platform running Linux, and evaluate its performance through analysis and experiments. Results show that collisions caused by hidden nodes can largely be reduced, and our protocol can increase the saturation throughput by nearly up to 50% and 100% under the two- and four-node scenarios, respectively.
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communication networks of visible light emitting diodes with intra frame Bidirectional Transmission
Conference on Emerging Network Experiment and Technology, 2014Co-Authors: Qing Wang, Domenico GiustinianoAbstract:Unlike traditional radio frequency communication of consumer devices, the "optical antenna" direction of Visible Light Communication (VLC), i.e., the Field-Of-View (FOV), varies greatly from device to device. This encompasses wide FOVs of ambient infrastructure and directional FOVs of light emitted by low-end embedded devices. This variety of light wave propagation can severely affect the Transmission reliability, despite ``pointing'' devices to each other may seem enough for a reliable link. In particular, the fact that FOVs are unknown makes traditional access protocols in VLC unreliable in presence of interference among nodes of different FOVs and exacerbates the hidden-node problem. In this paper, we propose a Carrier Sensing Multiple Access/Collision Detection&Hidden Avoidance (CSMA/CD-HA) Medium Access Control protocol for a network where each node solely uses one Light Emitting Diode (LED) to transmit and receive data. The CSMA/CD-HA can enable in-band intra-frame Bidirectional Transmission with just one optical antenna. The key idea is to exploit the intra-frame data symbols without emission of light to introduce an embedded communication channel. This approach enables the Transmission of additional data while receiving in the same optical channel and it makes the communication robust to different types of FOVs. We build a software-defined embedded platform running on Linux operating system, implement the CSMA/CD-HA protocol, and evaluate its performance through experiments. Results show that collisions caused by hidden nodes can be reduced and our protocol can increase the saturation throughput by nearly up to 50% and 100% under the two-node and four-node scenarios, respectively.
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CoNEXT - Communication Networks of Visible Light Emitting Diodes with Intra-Frame Bidirectional Transmission
Proceedings of the 10th ACM International on Conference on emerging Networking Experiments and Technologies, 2014Co-Authors: Qing Wang, Domenico GiustinianoAbstract:Unlike traditional radio frequency communication of consumer devices, the "optical antenna" direction of Visible Light Communication (VLC), i.e., the Field-Of-View (FOV), varies greatly from device to device. This encompasses wide FOVs of ambient infrastructure and directional FOVs of light emitted by low-end embedded devices. This variety of light wave propagation can severely affect the Transmission reliability, despite ``pointing'' devices to each other may seem enough for a reliable link. In particular, the fact that FOVs are unknown makes traditional access protocols in VLC unreliable in presence of interference among nodes of different FOVs and exacerbates the hidden-node problem. In this paper, we propose a Carrier Sensing Multiple Access/Collision Detection&Hidden Avoidance (CSMA/CD-HA) Medium Access Control protocol for a network where each node solely uses one Light Emitting Diode (LED) to transmit and receive data. The CSMA/CD-HA can enable in-band intra-frame Bidirectional Transmission with just one optical antenna. The key idea is to exploit the intra-frame data symbols without emission of light to introduce an embedded communication channel. This approach enables the Transmission of additional data while receiving in the same optical channel and it makes the communication robust to different types of FOVs. We build a software-defined embedded platform running on Linux operating system, implement the CSMA/CD-HA protocol, and evaluate its performance through experiments. Results show that collisions caused by hidden nodes can be reduced and our protocol can increase the saturation throughput by nearly up to 50% and 100% under the two-node and four-node scenarios, respectively.