The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
Vincenzo Maniscalco - One of the best experts on this subject based on the ideXlab platform.
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wireless ofdm oqam with a small number of Subcarriers
Wireless Communications and Networking Conference, 2008Co-Authors: G Garbo, Stefano Mangione, Vincenzo ManiscalcoAbstract:Orthogonal Frequency division multiplexing based on offset quadrature amplitude modulation (OFDM-OQAM) is a multicarrier signaling technique which trades off robustness for spectral efficiency when compared to conventional OFDM with a cyclic prefix. In this paper, a novel matrix model for passband OFDM-OQAM signaling with a small number of Subcarriers over a multipath Frequency selective fading channel is presented. Specifically, in OFDM-OQAM a Frequency selective channel is divided into many smaller but still Frequency selective overlapping channels, so approximating the Frequency response of a subchannel by the channel Frequency response sampled at the Subcarrier Frequency may be inadequate. Channel effects may be better characterized if the Frequency response of each subchannel is represented as a Taylor expansion at the Subcarrier Frequency. Simulation results show how the matrix model implemented by means of this approximation is a suitable model for OFDM-OQAM with a small number of Subcarriers.
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WCNC - Wireless OFDM-OQAM with a Small Number of Subcarriers
2008 IEEE Wireless Communications and Networking Conference, 2008Co-Authors: G Garbo, Stefano Mangione, Vincenzo ManiscalcoAbstract:Orthogonal Frequency division multiplexing based on offset quadrature amplitude modulation (OFDM-OQAM) is a multicarrier signaling technique which trades off robustness for spectral efficiency when compared to conventional OFDM with a cyclic prefix. In this paper, a novel matrix model for passband OFDM-OQAM signaling with a small number of Subcarriers over a multipath Frequency selective fading channel is presented. Specifically, in OFDM-OQAM a Frequency selective channel is divided into many smaller but still Frequency selective overlapping channels, so approximating the Frequency response of a subchannel by the channel Frequency response sampled at the Subcarrier Frequency may be inadequate. Channel effects may be better characterized if the Frequency response of each subchannel is represented as a Taylor expansion at the Subcarrier Frequency. Simulation results show how the matrix model implemented by means of this approximation is a suitable model for OFDM-OQAM with a small number of Subcarriers.
G Garbo - One of the best experts on this subject based on the ideXlab platform.
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wireless ofdm oqam with a small number of Subcarriers
Wireless Communications and Networking Conference, 2008Co-Authors: G Garbo, Stefano Mangione, Vincenzo ManiscalcoAbstract:Orthogonal Frequency division multiplexing based on offset quadrature amplitude modulation (OFDM-OQAM) is a multicarrier signaling technique which trades off robustness for spectral efficiency when compared to conventional OFDM with a cyclic prefix. In this paper, a novel matrix model for passband OFDM-OQAM signaling with a small number of Subcarriers over a multipath Frequency selective fading channel is presented. Specifically, in OFDM-OQAM a Frequency selective channel is divided into many smaller but still Frequency selective overlapping channels, so approximating the Frequency response of a subchannel by the channel Frequency response sampled at the Subcarrier Frequency may be inadequate. Channel effects may be better characterized if the Frequency response of each subchannel is represented as a Taylor expansion at the Subcarrier Frequency. Simulation results show how the matrix model implemented by means of this approximation is a suitable model for OFDM-OQAM with a small number of Subcarriers.
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WCNC - Wireless OFDM-OQAM with a Small Number of Subcarriers
2008 IEEE Wireless Communications and Networking Conference, 2008Co-Authors: G Garbo, Stefano Mangione, Vincenzo ManiscalcoAbstract:Orthogonal Frequency division multiplexing based on offset quadrature amplitude modulation (OFDM-OQAM) is a multicarrier signaling technique which trades off robustness for spectral efficiency when compared to conventional OFDM with a cyclic prefix. In this paper, a novel matrix model for passband OFDM-OQAM signaling with a small number of Subcarriers over a multipath Frequency selective fading channel is presented. Specifically, in OFDM-OQAM a Frequency selective channel is divided into many smaller but still Frequency selective overlapping channels, so approximating the Frequency response of a subchannel by the channel Frequency response sampled at the Subcarrier Frequency may be inadequate. Channel effects may be better characterized if the Frequency response of each subchannel is represented as a Taylor expansion at the Subcarrier Frequency. Simulation results show how the matrix model implemented by means of this approximation is a suitable model for OFDM-OQAM with a small number of Subcarriers.
Stefano Mangione - One of the best experts on this subject based on the ideXlab platform.
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wireless ofdm oqam with a small number of Subcarriers
Wireless Communications and Networking Conference, 2008Co-Authors: G Garbo, Stefano Mangione, Vincenzo ManiscalcoAbstract:Orthogonal Frequency division multiplexing based on offset quadrature amplitude modulation (OFDM-OQAM) is a multicarrier signaling technique which trades off robustness for spectral efficiency when compared to conventional OFDM with a cyclic prefix. In this paper, a novel matrix model for passband OFDM-OQAM signaling with a small number of Subcarriers over a multipath Frequency selective fading channel is presented. Specifically, in OFDM-OQAM a Frequency selective channel is divided into many smaller but still Frequency selective overlapping channels, so approximating the Frequency response of a subchannel by the channel Frequency response sampled at the Subcarrier Frequency may be inadequate. Channel effects may be better characterized if the Frequency response of each subchannel is represented as a Taylor expansion at the Subcarrier Frequency. Simulation results show how the matrix model implemented by means of this approximation is a suitable model for OFDM-OQAM with a small number of Subcarriers.
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WCNC - Wireless OFDM-OQAM with a Small Number of Subcarriers
2008 IEEE Wireless Communications and Networking Conference, 2008Co-Authors: G Garbo, Stefano Mangione, Vincenzo ManiscalcoAbstract:Orthogonal Frequency division multiplexing based on offset quadrature amplitude modulation (OFDM-OQAM) is a multicarrier signaling technique which trades off robustness for spectral efficiency when compared to conventional OFDM with a cyclic prefix. In this paper, a novel matrix model for passband OFDM-OQAM signaling with a small number of Subcarriers over a multipath Frequency selective fading channel is presented. Specifically, in OFDM-OQAM a Frequency selective channel is divided into many smaller but still Frequency selective overlapping channels, so approximating the Frequency response of a subchannel by the channel Frequency response sampled at the Subcarrier Frequency may be inadequate. Channel effects may be better characterized if the Frequency response of each subchannel is represented as a Taylor expansion at the Subcarrier Frequency. Simulation results show how the matrix model implemented by means of this approximation is a suitable model for OFDM-OQAM with a small number of Subcarriers.
Tsuyoshi Yoshida - One of the best experts on this subject based on the ideXlab platform.
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simple Frequency domain hybrid qam superchannel with path fitted pre filtering and collaborative Subcarrier Frequency self tuning for flexible roadm systems
Optical Fiber Communication Conference, 2017Co-Authors: Takahiro Kodama, Masashi Binkai, Tsuyoshi YoshidaAbstract:Flexible spectral efficiency was demonstrated by a Frequency-domain hybrid-QAM based 400 Gb/s superchannel with path-fitted pre-filtering. Subcarrier Frequency tuning was also evaluated through offline emulation of laser Frequency drift, and mitigated a 2.1 dB Q degradation.
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OFC - Simple Frequency-domain hybrid-QAM superchannel with path-fitted pre-filtering and collaborative-Subcarrier Frequency self-tuning for flexible ROADM systems
Optical Fiber Communication Conference, 2017Co-Authors: Takahiro Kodama, Masashi Binkai, Tsuyoshi YoshidaAbstract:Flexible spectral efficiency was demonstrated by a Frequency-domain hybrid-QAM based 400 Gb/s superchannel with path-fitted pre-filtering. Subcarrier Frequency tuning was also evaluated through offline emulation of laser Frequency drift, and mitigated a 2.1 dB Q degradation.
Takahiro Kodama - One of the best experts on this subject based on the ideXlab platform.
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Coupled-Subcarrier Frequency and Polarization Coded Probabilistic Constellation for ROADM Systems
Asia Communications and Photonics Conference, 2017Co-Authors: Takahiro Kodama, Masanori HanawaAbstract:A novel probabilistic-shaped 56 Gbaud DP-QPSK signal using coupled-Subcarrier Frequency and polarization coding was simultaneously mitigated fiber nonlinearlity, optical filtering and PDL effects. We show 1 dB Q improvement for cascaded ROADM system.
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simple Frequency domain hybrid qam superchannel with path fitted pre filtering and collaborative Subcarrier Frequency self tuning for flexible roadm systems
Optical Fiber Communication Conference, 2017Co-Authors: Takahiro Kodama, Masashi Binkai, Tsuyoshi YoshidaAbstract:Flexible spectral efficiency was demonstrated by a Frequency-domain hybrid-QAM based 400 Gb/s superchannel with path-fitted pre-filtering. Subcarrier Frequency tuning was also evaluated through offline emulation of laser Frequency drift, and mitigated a 2.1 dB Q degradation.
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OFC - Simple Frequency-domain hybrid-QAM superchannel with path-fitted pre-filtering and collaborative-Subcarrier Frequency self-tuning for flexible ROADM systems
Optical Fiber Communication Conference, 2017Co-Authors: Takahiro Kodama, Masashi Binkai, Tsuyoshi YoshidaAbstract:Flexible spectral efficiency was demonstrated by a Frequency-domain hybrid-QAM based 400 Gb/s superchannel with path-fitted pre-filtering. Subcarrier Frequency tuning was also evaluated through offline emulation of laser Frequency drift, and mitigated a 2.1 dB Q degradation.
