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Proceedings Paper

Hybrid frequency-time domain Tx and Rx I/Q imbalance compensation for coherent optical OFDM transmission
Author(s): Simin Chen; Abdullah Al Amin; William Shieh
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Paper Abstract

A compensation scheme for transmitter (Tx) and receiver (Rx) I/Q imbalance with the interference of carrier frequency offset for CO-OFDM transmission is demonstrated. It has low over-head using only two specific designed symbols for Rx side I/Q imbalance and two for that of Tx side, respectively. Rx compensation is performed in time domain after OFDM frame synchronization and the Tx I/Q imbalance is compensated in frequency domain after channel and phase estimation. The bit error rate (BER) and Q improvement are evaluated experimentally to demonstrate the effectiveness of compensation algorithms. This scheme performs better with the increase of OSNR.

Paper Details

Date Published: 18 February 2011
PDF: 6 pages
Proc. SPIE 7988, Optical Transmission Systems, Switching, and Subsystems VIII, 79880Q (18 February 2011); doi: 10.1117/12.888150
Show Author Affiliations
Simin Chen, The Univ. of Melbourne (Australia)
Abdullah Al Amin, The Univ. of Melbourne (Australia)
William Shieh, The Univ. of Melbourne (Australia)

Published in SPIE Proceedings Vol. 7988:
Optical Transmission Systems, Switching, and Subsystems VIII
Yikai Su; Ernesto Ciaramella; Xiang Liu; Naoya Wada, Editor(s)

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