Open AccessEffect of imperfect CSI on STBC‐MISO system via antenna selection
Author(s) -
Guowei Lei,
Yuanan Liu,
Xuefang Xiao
Publication year - 2016
Publication title -
iet signal processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.384
H-Index - 42
eISSN - 1751-9683
pISSN - 1751-9675
DOI - 10.1049/iet-spr.2015.0127
Subject(s) - space–time block code , mimo , channel state information , block code , channel (broadcasting) , computer science , imperfect , control theory (sociology) , statistics , antenna (radio) , qam , algorithm , telecommunications , quadrature amplitude modulation , mathematics , bit error rate , wireless , decoding methods , artificial intelligence , linguistics , philosophy , control (management)
It is widely known that transmit antenna selection (TAS) in space‐time block codes (STBC)‐MISO system mainly depends on the estimation of channel state information (CSI). In the study, to investigate the performances of TAS in STBC‐multi‐input multi‐output (MIMO) system based on CSI, the probability density function of channel gain coefficients is firstly given for STBC‐MIMO. To evaluate the performance of TAS, order statistics theory is employed to describe the statistics characteristics of channel gain coefficients in STBC‐MISO, and the coefficient of channel order statistics is derived. Furthermore, some general conclusions for perfect and imperfect CSI are derived for STBC‐MISO system. Based on the analysis, Chernoff approximated upper bounds of linear modulated signals (MPSK, QAM) for the system are derived. Finally, simulations and discussions are given to validate the analysis in the system.