TY - GEN
T1 - Error regularized Turbo-MIMO MMSE-SIC detection with imperfect channel state information
AU - Krebs, Alexander
AU - Joham, Michael
AU - Utschick, Wolfgang
N1 - Publisher Copyright:
© VDE Verlag GMBH · Berlin · Offenbach, Germany.
PY - 2015
Y1 - 2015
N2 - In our previous study [1], we have found that the performance of low-complexity successive interference cancellation (SIC) detection algorithms in Turbo multiple-input multipleoutput (MIMO) systems can be improved significantly by a simple regularization technique that mitigates the propagation of detection errors during the detection and the decoding cycle. Since SIC based detection is prone to imperfect channel state information (ICSI), in this work we extend our study to take into account the effect of ICSI resulting from least squares (LS) Gaussian channel estimation aided by orthogonal pilot sequences. We introduce the ICSI-aware linear, SIC, and maximum-likelihood (ML) Turbo- MIMO equalizer and the ICSI-aware SIC error regularization and present its application in a simulation for a Turbo-MIMO iterative receiver with feedback of a-posteriori information from the channel decoder to the symbol detector.
AB - In our previous study [1], we have found that the performance of low-complexity successive interference cancellation (SIC) detection algorithms in Turbo multiple-input multipleoutput (MIMO) systems can be improved significantly by a simple regularization technique that mitigates the propagation of detection errors during the detection and the decoding cycle. Since SIC based detection is prone to imperfect channel state information (ICSI), in this work we extend our study to take into account the effect of ICSI resulting from least squares (LS) Gaussian channel estimation aided by orthogonal pilot sequences. We introduce the ICSI-aware linear, SIC, and maximum-likelihood (ML) Turbo- MIMO equalizer and the ICSI-aware SIC error regularization and present its application in a simulation for a Turbo-MIMO iterative receiver with feedback of a-posteriori information from the channel decoder to the symbol detector.
UR - http://www.scopus.com/inward/record.url?scp=84979703429&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84979703429
T3 - Proceedings of 19th International ITG Workshop on Smart Antennas, WSA 2015
BT - Proceedings of 19th International ITG Workshop on Smart Antennas, WSA 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 19th International ITG Workshop on Smart Antennas, WSA 2015
Y2 - 3 March 2015 through 5 March 2015
ER -