Optimized Unequal APSK Constellation Mapping and Demapping for Non-equiprobable Transmission Systems

2020 IEEE 10th International Conference on Electronics Information and Emergency Communication (ICEIEC)(2020)

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摘要
Amplitude phase shift keying(APSK) is an emerging modulation scheme due to its considerable shaping gain. In this paper, unequal APSK constellation mapping aiming at non-equiprobable transmission system is concerned. A simplified and optimized mapping and demapping method for non-equiprobable symbols’ transmission is proposed. Simulation results show that the proposed mapping and demapping method outperforms conventional constellations and mappings.
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关键词
non-equiprobable symbols,16APSK constellation,mapping optimization
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