摘要
An optical Amplitude and Pulse Position Modulation (APPM) mapping scheme for strong turbulent atmospheric channel is proposed to optimize Bit Error Rate (BER) performance. In this scheme, a non-equidifferent amplitude series is designed based on quantitative BER analysis of the specific A×M APPM demapping procedures containing time slot selection and amplitude decision in selected time slot, which are different from traditional ones. Simulation results of 4×4, 4×8 and 4×16 APPM show 4, 3.4 and 6.9 dB SNR gain against traditional APPM scheme respectively. Thus significant BER performance improvement is achieved which helps to enhance reliability of free-space optical communication systems.
源语言 | 英语 |
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文章编号 | 7084361 |
页(从-至) | 35-42 |
页数 | 8 |
期刊 | China Communications |
卷 | 12 |
期 | 3 |
DOI | |
出版状态 | 已出版 - 1 3月 2015 |
已对外发布 | 是 |