Signal constellation kuumbwa

Zhi Zhang et al.kubva kuSchool of Communication and Information Engineering, University of Electronic Science and Technology yeChina 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 zvichibva paruzivo rwenhamba (SI) (kuburikidza nekutsiviwa kwenzvimbo yenyeredzi).Zvadaro, kutevedzana kweSI kwakavharidzirwa uye kwakavharidzirwa 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 kugadzirisa mashandiro ekutumira nekugamuchira masaini, asi zvakare kupa chengetedzo yakakwana yekuramba kurwiswa kubva kusiri pamutemo optical network unit (ONU), pasina mubvunzo ichava netarisiro yakanaka yekushandisa mu ramangwana.