Open AccessPrecoding design for STBC‐MIMO system with imperfect feedback in spatially correlated Rayleigh channel
Author(s) -
Xu Weiye,
Bao Yongqiang,
Yu Xiangbin
Publication year - 2014
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.2014.1621
Subject(s) - precoding , space–time block code , mimo , imperfect , computer science , electronic engineering , channel (broadcasting) , zero forcing precoding , control theory (sociology) , telecommunications , engineering , linguistics , philosophy , control (management) , artificial intelligence
By minimising the pairwise error probability (PEP) bound subject to the fixed power constraint, a suboptimal precoding scheme for space–time block‐coded multiple‐input–multiple‐output (STBC‐MIMO) systems with mean and covariance feedback in spatially correlated Rayleigh fading channels is developed, which can include the mean‐feedback only and covariance‐feedback only as its special cases. This scheme can achieve performances close to the existing optimal scheme while being more computationally efficient. The simulation results show that the proposed scheme can provide better performances than the conventional equal power scheme, and achieve almost the same performances as the existing optimal scheme.