13 May 2016 Constellation labeling optimization for bit-interleaved coded APSK
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This paper investigates the constellation and mapping optimization for amplitude phase shift keying (APSK) modulation, which is deployed in Digital Video Broadcasting Satellite - Second Generation (DVB-S2) and Digital Video Broadcasting - Satellite services to Handhelds (DVB-SH) broadcasting standards due to its merits of power and spectral efficiency together with the robustness against nonlinear distortion. The mapping optimization is performed for 32-APSK according to combined cost functions related to Euclidean distance and mutual information. A Binary switching algorithm and its modified version are used to minimize the cost function and the estimated error between the original and received data. The optimized constellation mapping is tested by combining DVB-S2 standard Low-Density Parity-Check (LDPC) codes in both Bit-Interleaved Coded Modulation (BICM) and BICM with iterative decoding (BICM-ID) systems. The simulated results validate the proposed constellation labeling optimization scheme which yields better performance against conventional 32-APSK constellation defined in DVB-S2 standard.
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Xingyu Xiang, Xingyu Xiang, Zijian Mo, Zijian Mo, Zhonghai Wang, Zhonghai Wang, Khanh Pham, Khanh Pham, Erik Blasch, Erik Blasch, Genshe Chen, Genshe Chen, "Constellation labeling optimization for bit-interleaved coded APSK", Proc. SPIE 9838, Sensors and Systems for Space Applications IX, 98380Q (13 May 2016); doi: 10.1117/12.2225414; https://doi.org/10.1117/12.2225414

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