Open AccessOptimizing Signal Transmission in a MIMO System Influenced by Antenna Mutual Coupling
Author(s) -
Shengfu Lu,
Hon Tat Hui,
M.E. Bialkowski,
Xia Liu
Publication year - 2007
Publication title -
ecti transactions on electrical eng. / electronics and communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.148
H-Index - 7
ISSN - 1685-9545
DOI - 10.37936/ecti-eec.200862.171785
Subject(s) - mimo , antenna (radio) , transmission (telecommunications) , 3g mimo , coupling (piping) , electronic engineering , computer science , signal (programming language) , channel (broadcasting) , telecommunications link , power (physics) , control theory (sociology) , topology (electrical circuits) , telecommunications , engineering , physics , electrical engineering , mechanical engineering , control (management) , quantum mechanics , artificial intelligence , programming language
This paper is concerned with investigations into an optimal transmission scheme for a single-user Multiple Input Multiple Output (MIMO) system influenced by the antenna mutual coupling. The concept of "coupled power" relying on the transmitting and receiving mutual impedances is introduced. This concept is used to work out an optimal MIMO transmission scheme when a non-negligible mutual coupling between antenna elements exists. Numerical results illustrate that the proposed signal transmission scheme offers extra capacity to the system. A suitable choice of antenna elements separation to obtain an improved MIMO system performance is discussed for the case of a semi-correlated uplink channel.