{"title":"Effectiveness evaluation of MIMO in polarized OAM multiplexing","authors":"Mikito Ito;Shuhei Saito;Hirofumi Suganuma;Kayo Ogawa;Fumiaki Maehara","doi":"10.23919/comex.2023XBL0156","DOIUrl":null,"url":null,"abstract":"Adopting polarization for orbital angular momentum (OAM) multiplexing can suppress beam divergence because of using the lower OAM modes, which leads to extending the link distance. In this study, we investigate the effectiveness of multiple-input multiple-output (MIMO) on the polarized OAM multiplexing under the restriction of the same total transmit power and total number of antenna elements. To evaluate the combined effects of polarization and MIMO on system capacity, we conducted computer simulations. Moreover, we investigate the system capacity when only lower OAM modes are available, and compare it with the case without mode limitations. The results of our study provide valuable insights into the potential benefits of using polarization and MIMO for OAM multiplexing.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 3","pages":"60-63"},"PeriodicalIF":0.3000,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10400562","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEICE Communications Express","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10400562/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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Abstract
Adopting polarization for orbital angular momentum (OAM) multiplexing can suppress beam divergence because of using the lower OAM modes, which leads to extending the link distance. In this study, we investigate the effectiveness of multiple-input multiple-output (MIMO) on the polarized OAM multiplexing under the restriction of the same total transmit power and total number of antenna elements. To evaluate the combined effects of polarization and MIMO on system capacity, we conducted computer simulations. Moreover, we investigate the system capacity when only lower OAM modes are available, and compare it with the case without mode limitations. The results of our study provide valuable insights into the potential benefits of using polarization and MIMO for OAM multiplexing.
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