Design studies for ASIC implementations of 28 GS/s optical QPSK- and 16-QAM-OFDM transceivers

Rachid Bouziane; Peter Milder; Robert Koutsoyannis; Yannis Benlachtar; James C. Hoe; Markus Püschel; Madeleine Glick; Robert I. Killey

doi:10.1364/OE.19.020857

Design studies for ASIC implementations of 28 GS/s optical QPSK- and 16-QAM-OFDM transceivers

Rachid Bouziane
, Peter Milder
, Robert Koutsoyannis
, Yannis Benlachtar
, James C. Hoe
, Markus Püschel
, Madeleine Glick
, Robert I. Killey

Electrical Engineering

University College London
Carnegie Mellon University
Swiss Federal Institute of Technology Zurich
Intel

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

We designed at the register-transfer-level digital signal processing (DSP) circuits for 21.8 Gb/s and 43.7 Gb/s QPSK- and 16-QAM-encoded optical orthogonal frequency division multiplexing (OFDM) transceivers, and carried out synthesis and simulations assessing performance, power consumption and chip area. The aim of the study is to determine the suitability of OFDM technology for low-cost optical interconnects. Power calculations based on synthesis for a 65nm standardcell library showed that the DSP components of the transceiver (FFTs, equalisation, (de)mapping and clipping/scaling circuits) consume 18.2 mW/Gb/s and 12.8 mW/Gb/s in the case of QPSK and 16-QAM respectively.

Original language	English
Pages (from-to)	20857-20864
Number of pages	8
Journal	Optics Express
Volume	19
Issue number	21
DOIs	https://doi.org/10.1364/OE.19.020857
State	Published - Oct 10 2011

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abstract = "We designed at the register-transfer-level digital signal processing (DSP) circuits for 21.8 Gb/s and 43.7 Gb/s QPSK- and 16-QAM-encoded optical orthogonal frequency division multiplexing (OFDM) transceivers, and carried out synthesis and simulations assessing performance, power consumption and chip area. The aim of the study is to determine the suitability of OFDM technology for low-cost optical interconnects. Power calculations based on synthesis for a 65nm standardcell library showed that the DSP components of the transceiver (FFTs, equalisation, (de)mapping and clipping/scaling circuits) consume 18.2 mW/Gb/s and 12.8 mW/Gb/s in the case of QPSK and 16-QAM respectively.",

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AU - Milder, Peter

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AU - Benlachtar, Yannis

AU - Hoe, James C.

AU - Püschel, Markus

AU - Glick, Madeleine

AU - Killey, Robert I.

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Design studies for ASIC implementations of 28 GS/s optical QPSK- and 16-QAM-OFDM transceivers

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