Research Article
Receiver Design for Underwater Wireless Optical Communication Link based on APD
@INPROCEEDINGS{10.1109/ChinaCom.2012.6417495, author={Shijian Tang and Yuhan Dong and Xuedan Zhang}, title={Receiver Design for Underwater Wireless Optical Communication Link based on APD}, proceedings={7th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2012}, month={10}, keywords={underwater wireless optical communication link misalignment offset distance avalanche photodiode}, doi={10.1109/ChinaCom.2012.6417495} }- Shijian Tang
Yuhan Dong
Xuedan Zhang
Year: 2012
Receiver Design for Underwater Wireless Optical Communication Link based on APD
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2012.6417495
Abstract
In this paper, we present a gain control scheme of receiver based on avalanche photodiodes (APDs) for underwater wireless optical communication links. We first derive the approximate expression of optimal gain of APD. Then based on beam-spread function, a closed-form expression of relationship of optimal gain of APD, link range and receiver offset distance is derived. Then a self-adaptive gain control scheme is designed to keep the gain of receiver as optimal gain when the receiver deviates unpredictably. We also evaluate the dynamic range of receiver gain. Our results are beneficial for receiver design and link reliability improvement.
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