AAU logo

Guest Lecture by Prof. Dirk Slock, EURECOM


15.05.2018 kl. 10.45 - 15.05.2018 kl. 12.00


“Variational Bayesian Learning for Channel Estimation and Transceiver Determination”

We consider the design of linear precoders for the MISO Interfering Broadcast Channel (IBC) with partial Channel State Information at the Transmitter (CSIT) in the form of both channel estimates and channel covariance information. Most of the results can also be transposed to the SIMO Interfering Multiple Access Channel with linear receivers. We first point out that in the case of reduced rank covariance matrices, there is significant gain in sum rate by using LMMSE as opposed to Least-Squares (LS) channel estimates. We also analyze various beamforming designs exploiting partial CSIT. Then we go beyond assuming the availability of covariance CSIT and propose variational Bayesian learning (VBL) techniques to acquire it assuming TDD channel reciprocity. In particular a Space Alternating version of Variational Estimation (SAVE) allows a well founded alternative to AMP based techniques while being of similar complexity. The SAVE techniques can also be applied to obtain reduced complexity iterative techniques for determining the transmit/receive signals or beamformers themselves.

Dirk T. M. Slock (F’06) received the engineering degree from the University of Ghent, Ghent, Belgium, in 1982 and the M.S. degree in electrical engineering, the M.S. degree in statistics, and the Ph.D. degree in electrical engineering, all from Stanford University, Stanford, CA, USA, in 1986, 1989, and 1989, respectively.

He has been a Professor with EURECOM, Biot, France, since 1991. He invented semiblind channel estimation, the chip equalizer-correlator receiver (3G), MIMO-CDD, which is now part of Long-Term Evolution, and the single antenna interference cancellation (GSM standard). He has (co)authored more than 460 papers.

Prof. Slock received a Best Paper Award from the IEEE Signal Processing Society and from EURASIP in 1992 as well as two IEEE Global Communications Conference, in 1998, one IEEE Signal Processing and Communications Applications in 2004, and one IEEE International Workshop on Signal Processing Advances in Wireless Communications in 2005 Best Student Paper Awards.

All are welcome!


Free of Charge


Wireless Communication Networks, department of Electronic Systems


Aalborg University, Fredrik Bajers Vej 7, B2-104

Gå til arrangementslisten

Alle arrangementer

Se listen