Research Article
Performance Evaluation of Channel Coding and Aperture Averaging for the Satellite-To-Ground Optical Communications with APD Receivers
@INPROCEEDINGS{10.1109/ChinaCom.2011.6158282, author={Huixi Liao and Qingjun Zhang and Jing Ma and Liying Tan}, title={Performance Evaluation of Channel Coding and Aperture Averaging for the Satellite-To-Ground Optical Communications with APD Receivers}, proceedings={6th International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2012}, month={3}, keywords={channel coding aperture averaging satellite-to-ground optical communications atmospheric turbulence}, doi={10.1109/ChinaCom.2011.6158282} }- Huixi Liao
Qingjun Zhang
Jing Ma
Liying Tan
Year: 2012
Performance Evaluation of Channel Coding and Aperture Averaging for the Satellite-To-Ground Optical Communications with APD Receivers
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2011.6158282
Abstract
In this paper, the synergy of the channel coding and aperture averaging is applied to the downlink optical channel for the low earth orbit (LEO) satellite. Bit error rates (BER) of the convolutional code and low-density parity code (LDPC) are evaluated versus different diameters for the optical systems with avalanche photodiode (APD) receivers. Results indicate that when the temporal correlation time τ0=10 ms, the convolutional code satisfying the real-time delay constraint has practically no interest, because it doesn't show significant performance improvement over the no-coding case. Moreover, the aperture averaging is shown to be robust across the a large range of zenith angles ζ≤80o .
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