Open AccessEffects of coupling and overspeeding on performance of predictor antenna systems in wireless moving relays
Author(s) -
Jamaly Nima,
Svensson Tommy,
Derneryd Anders
Publication year - 2019
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2018.5633
Subject(s) - multipath propagation , decoupling (probability) , antenna (radio) , electronic engineering , base station , wireless , computer science , coupling (piping) , engineering , channel (broadcasting) , control theory (sociology) , telecommunications , control (management) , control engineering , artificial intelligence , mechanical engineering
Using predictor antenna systems for modern wireless moving relays and base stations on top of vehicles such as buses, trains etc. proves to be a reliable approach for collecting channel state information to such fast moving nodes. Recently, it has been shown that coupling between different ports of a multiport antenna system used as a part of a predictor system can reduce the prediction performance. In this study, by integrating position and velocity vectors in the channel covariance matrix as seen at the antenna ports in a rich multipath environment, the authors quantify the impact of antenna coupling on prediction performance. Moreover, practically these predictor systems are designed for a certain target velocity. They further quantify the adverse effect of velocities, different from the target velocity, on prediction performance. In case open‐circuit decoupling is necessary, the sensitivity of the predictor antenna system performance with respect to the accuracy of the input network parameters is disclosed.