Wednesday, 21 September, 2011
14:30 -- 16:15
Room A

We.9.A • OFDM II

Chair: Andrew Ellis; University of Cork, Ireland
We.9.A.1 • 14:30
Efficient and Robust MIMO DSP Equalization in POLMUX OFDM Transmission with Direct Detection
Neda Cvijetic1, Narayan Prasad1, Milorad Cvijetic2, Ting Wang1; 1NEC Laboratories America, USA; 2NEC Corp. of America, USA.
We identify a novel efficiency-versus-robustness trade-off in POLMUX-OFDM-DD systems and present the first DSP-based switching rule that exploits it. We experimentally report 20.4% and 36.8% complexity reductions for 20km 16-QAM and 800km QPSK transmission, respectively.
We.9.A.2 • 14:45
Practical Carrier Recovery Method for Carrier-Assisted PDM-CO-OFDM Transmissions
Wei-Ren Peng1, Itsuro Morita1, Hidenori Takahashi1, Hideaki Tanaka1; 1KDDI R&D Labs, Japan.
For carrier-assisted PDM-CO-OFDM systems, we proposed and demonstrate a practical carrier recovery method applying a very-simple moving average filter (MAF). Besides simplicity, we also confirm its excellent performance from the results of a 16-QAM, 40-Gbps OFDM transmission experiment.
We.9.A.3 • 15:00
Real-Time Experimental Demonstration of a Versatile Optical OFDM Symbol Synchronisation Technique Using Low-Power DC Offset Signalling
Jianming Tang1, Roger Giddings1; 1School of Electronic Engineering, Bangor University, United Kingdom.
A simple, bandwidth overhead-free, bit-rate-independent optical OFDM symbol synchronisation technique is proposed and experimentally demonstrated at 11.25Gb/s, for the first time, which can support asynchronous receiver clocking, live symbol synchronisation and added extra network security.
We.9.A.4 • 15:15
Companding Transform based SPM Compensation in Coherent Optical OFDM Transmission
HwanSeoK Chung1, Sun Hyok Chang1, Kwangjoon Kim1; 1ETRI, Republic of Korea.
We demonstrate a mitigation of fiber nonlinearity using μ-law companding transform in coherent optical OFDM transmission. After transmission of 1,040 km over SMF, the proposed scheme shows 5.5 dB OSNR improvements over non-companded signal.
We.9.A.5 • 15:30
Design and Simulation of 25 Gb/s Optical OFDM Transceiver ASICs
Peter Milder1, Rachid Bouziane2, Robert Koutsoyannis1, Christian R. Berger1, Yannis Benlachtar2, Robert Killey2, Madeleine Glick3, James C. Hoe1; 1Electrical and Computer Engineering, Carnegie Mellon University, USA; 2Electronic and Electrical Engineering, University College London, United Kingdom; 3Intel Labs Pittsburgh, USA.
We select the optimum design parameters for real-time optical OFDM transceivers running at 25 Gb/s and analyze power consumption and ASIC footprint for a variety of configurations based on synthesis for a 65nm standard-cell library.
We.9.A.6 • 15:45
Real-time Polarization Division Multiplexed Coherent Optical OFDM Receiver at 9.83-GS/s for 28.6-Gb/s Single-band Intradyne Detection
Noriaki Kaneda1, Timo Pfau1, Stephen Corteselli1, Qi Yang2, Andreas Leven3, Young-Kai Chen1; 1Alacatel-Lucent, USA; 2State Key Laboratory of Optical Communication Technologies and Networks, China; 3Alcatel-Lucent, Germany.
Real-time polarization division multiplexed coherent optical OFDM receiver is demonstrated to receive 28.6-Gb/s data per optical wavelength in single intradyne detection. QPSK modulated sub-carriers are detected using 9.83-GS/s ADCs and DSP implemented on three FPGAs.
We.9.A.7 • 16:00
Realization of a Real-Time 93.8-Gb/s Polarization- Multiplexed OFDM Transmitter with 1024-Point IFFT
Beril Inan1, Susmita Adhikari2, Ozgur Karakaya1, Peter Kainzmaier3, Micheal Mocker3, Heinrich von Kirchbauer3, Norbert Hanik1, Sander Jansen3; 1Technische Universitaet Muenchen, Germany; 2Christian-Albrechts-Universitaet, Germany; 3Nokia Siemens Networks GmbH & Co. KG, Germany.
We demonstrate a 93.8-Gb/s real-time optical OFDM transmitter with 1024-point IFFT using polarization-multiplexing and 4-QAM modulation. A required OSNR of 26.5 dB is measured for a BER of 10-3.