Joint Optimization of the Worst-Case Robust MMSE MIMO Transceiver
2011 (English)In: IEEE Signal Processing Letters, ISSN 1070-9908, E-ISSN 1558-2361, Vol. 18, no 5, 295-298 p.Article in journal (Refereed) Published
We consider a robust MIMO transceiver design to minimize mean square errors, by taking into account the imperfect channel state information from a worst-case robustness perspective. We show that for a given precoder, the optimal robust equalizer is obtained through channel diagonalization, and vice versa. Thus, a joint but usually suboptimal transceiver design can be readily obtained through alternately optimizing the equalizer and precoder, where in each iteration only a scalar problem is to be solved. We further propose efficient algorithms for the scalar optimization problems.
Place, publisher, year, edition, pages
2011. Vol. 18, no 5, 295-298 p.
Imperfect CSI, MIMO transceiver, MMSE, SDP, minimax, worst-case robustness
IdentifiersURN: urn:nbn:se:kth:diva-48674DOI: 10.1109/LSP.2011.2123092ISI: 000288334600006OAI: oai:DiVA.org:kth-48674DiVA: diva2:458289
QC 201111242011-11-222011-11-222013-04-16Bibliographically approved