Open AccessMassive OAM‐MIMO transmission scheme for 5G networks and beyond
Author(s) -
Mao Fuchun,
Ni Chunming,
Zhang Zuoshan,
Li Tinghua,
Yang Chengfu,
Zhang Jialin
Publication year - 2021
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/cmu2.12135
Subject(s) - mimo , computer science , multipath propagation , transmission (telecommunications) , spatial multiplexing , angular momentum , topology (electrical circuits) , channel capacity , telecommunications , multiplexing , multi user mimo , electronic engineering , 3g mimo , array gain , channel (broadcasting) , antenna (radio) , antenna array , physics , electrical engineering , engineering , quantum mechanics
Abstract The combination of orbital angular momentum (OAM) and massive multiple‐input multiple‐output (MIMO) brings the possibility of almost infinite transmission capability, which may be applied in the coming 5th generation networks and beyond. In this study, a uniform line array (ULA)‐based massive OAM‐MIMO scheme in a multipath scene is presented. The cumulative phase of OAM carriers and multiple reference coordinate systems relative to each transmitting antenna are used to describe the OAM‐MIMO wireless channel model theoretically. The performance indices of interest including capacity, energy efficiency, and capacity gain are numerically investigated in detail. The results indicate that the presented ULA‐based massive OAM‐MIMO scheme performs better overall than a conventional MIMO scheme via enhancing the OAM multiplexing intensity, and multi‐fold capacity gain can be obtained especially in the low signal‐to‐noise rate communications.