Open AccessDuality of antennas and subcarriers in massive MIMO‐OFDM downlink system
Author(s) -
Bannour Ahmed,
Sun Yichuang
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2015.0355
Subject(s) - mimo , mimo ofdm , orthogonal frequency division multiplexing , telecommunications link , duality (order theory) , multi user mimo , computer science , electronic engineering , 3g mimo , multiplexing , telecommunications , mathematics , engineering , beamforming , channel (broadcasting) , discrete mathematics
Massive multiple‐input–multiple‐output (MIMO) can significantly outperform conventional MIMO in terms of spectrum efficiency and link reliability. For massive MIMO, there are still theoretical and practical issues that have to be addressed. The capacity of the massive MIMO‐orthogonal frequency division multiplexing (OFDM) downlink system is derived and analysed and the duality of antennas and subcarriers in such system is demonstrated analytically and by simulation. A detailed comparison between massive MIMO, massive MIMO‐OFDM and MIMO‐OFDM with large subcarriers is presented.