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    Signal constellation kuumbwa

    Nguva yekutumira: Mar-05-2022

    Zhi Zhang et al. kubva kuSchool of Communication and Information Engineering, University of Electronic Science and Technology of China yakagadzira boka renyeredzi Reshaping chaotic encryption (CSCEn) chirongwa chine nhamba yekuparadzira inodzoreka, sezvinoratidzwa muFIG. 2. Chekutanga, orthogonal amplitude modulation (QAM) zviratidzo zvekutevedzana zvakakamurwa kuva akati wandei madiki-sequences, uye probabilistic shaping (PS) yakaitwa zvichienderana nenhamba yeruzivo (SI) (kuburikidza nekutsiviwa kwenzvimbo yenyeredzi). Zvadaro, kutevedzana kweSI kwakavharidzirwa uye kuvharidzirwa muzvikamu zvechaotic chiratidzo uchishandisa kiyi yekugovera algorithm. SI yakabviswa pamagumo ekugamuchira kuti idzore chiratidzo chepakutanga [2]. Vatsvagiri vakabudirira kufambisa iyo yakavanzika ps-16-qam siginecha pamusoro peyakajairwa single mode fiber (SSMF) ye25km. Nekuti chirongwa ichi hachingogone kuona kuchinjika kutumirwa nekudzika kwakadzika uye kuvandudza mashandiro ekutumira nekugamuchira masaini, asiwo kupa chengetedzo yakakwana yekuramba kurwiswa kubva zvisiri pamutemo optical network unit.ONU), pasina mubvunzo ichava netarisiro yakanaka yekushandisa mune ramangwana.
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