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Browsing by Author "Sauer, Michael"

Now showing 1 - 7 of 7
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    13.75-Gb/s OFDM Signal Generation for 60-GHz RoF System within 7-GHz License-Free Band via Frequency Sextupling
    (2009)
    Shih, Po-Tsung
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    Lin, Chun-Ting
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    Huang, Han-Sheng
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    Jiang, Wen-Jr
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    Chen, Jyehong
    A 60-GHz RoF system with frequency sextupling is experimentally demonstrated. Based on modified SSB, a 13.75-Gb/s OFDM signal is generated within the 7-GHz license-free band. No penalty is observed after transmission over 25-km single-mode fiber.
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    14 Gbps 60 GHz RoF Link Employing a Simple System Architecture and OFDM Modulation
    (2009)
    Ng\'oma, Anthony
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    Sauer, Michael
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    Annunziata, Frank
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    Jiang, Wen-, Jr.
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    Shih, Po-Tsung
    A radio-over-fiber system with a simple architecture is used to transport a 14 Gbps OFDM signal occupying the full 60 GHz band. Fiber lengths exceeding 3km are supported without any dispersion compensation.
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    21 Gbps OFDM Wireless Signal Transmission at 60 GHz Using a Simple IMDD Radio-over-Fiber System
    (2010)
    Ng\'oma, Anthony
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    Shih, Po-Tsung
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    George, Jacob
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    Annunziata, Frank
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    Sauer, Michael
    A simple double-sideband IMDD RoF system is successfully employed to directly transport a 21 Gbps OFDM signal at 60 GHz over 500 m of standard single-mode fiber and 10 m wireless distance. (C)2010 Optical Society of America
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    2x21 Gbps Symmetrical Full-Duplex Transmission of OFDM Wireless Signals over a Bidirectional IMDD Radio-over-Fiber System at 60 GHz
    (2010)
    Shih, Po-Tsung
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    Ng'oma, Anthony
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    Lin, Chun-Ting
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    Annunziata, Frank
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    Chen, Jyehong
    A full-duplex bidirectional 60 GHz RoF system for in-building wireless applications employing DSB IMDD techniques is experimentally demonstrated. Symmetrical 2x21 Gbps transmission over 500-m standard single mode fiber and 2.5-m wireless distance is successfully achieved.
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    Simple 14-Gb/s Short-Range Radio-Over-Fiber System Employing a Single-Electrode MZM for 60-GHz Wireless Applications
    (2010-08-15)
    Jiang, Wen-Jr
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    Lin, Chun-Ting
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    Ng'oma, Anthony
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    Shih, Po-Tsung
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    Chen, Jason Jyehong
    This paper demonstrates the feasibility of a simple multigigabit-per-second (Gbps) radio-over-fiber (RoF) system employing multilevel orthogonal frequency-division-multiplexing (OFDM) signal modulation at 60 GHz and a single-electrode Mach-Zehnder modulator (MZM). In this paper, the impact of fiber chromatic dispersion and OFDM beat noise on the performance of the RoF system are investigated by theoretical analysis, VPI WDM-TransmissionMaker simulation and experimental demonstration. A 13.875-Gb/s QPSK OFDM signal occupying the full 7-GHz license-free band at 60 GHz with frequency multiplication for the RoF link is demonstrated. After 3 km of standard single-mode fiber transmission with no dispersion compensation, the power penalty is less than 3 dB.
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    Simple Multi-Gbps 60 GHz Radio-over-Fiber Links Employing Optical and Electrical Data Up-conversion and Feed-Forward Equalization
    (2009)
    Ng\'oma, Anthony
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    Sauer, Michael
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    Annunziata, Frank
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    Jiang, Wen-, Jr.
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    Lin, Chun-Ting
    We show that optical up-conversion performs better than electrical up-conversion in simple IMDD-based 60GHz radio-over-fiber links. Feed-forward equalization improved the performances of both systems, enabling error-free transmission of 4 Gbps over 500m of single-mode fiber. (C) 2008 Optical Society of America
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    Transmission of 20-Gb/s OFDM signals occupying 7-GHz license-free band at 60 GHz using a RoF system employing frequency sextupling optical up-conversion
    (2010-06-07)
    Shih, Po-Tsung
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    Lin, Chun-Ting
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    Jiang, Wen-Jr
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    Huang, Han-Sheng
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    Chen, Jyehong
    This work describes a proposed 60-GHz radio-over-fiber (RoF) system employing a frequency sextupling optical up-conversion scheme. Based on the modified single sideband modulation scheme, spectrally efficient vector signals were transmitted with no performance degradation due to dispersion-induced fading. Wavelength-division-multiplexed optical up-conversion can be realized using the proposed system. Since the required transmitter bandwidth is significantly reduced, radio-frequency components with lower bandwidth and higher reliability can be utilized. Both 13.75-Gb/s QPSK-OFDM and 20.625-Gb/s 8QAM-OFDM signals were experimentally demonstrated. After transmission over 25-km of standard single mode fiber, no significant received power penalty was observed. (C) 2010 Optical Society of America