par Hofbauer, Christian;Lebrun, Yann;Ramon, Valéry;Bourdoux, André 
;Horlin, François ;Huemer, Mario
Référence Lecture notes in computer science, 5717 LNCS, page (477-484)
Publication Publié, 2009-02
;Horlin, François ;Huemer, MarioRéférence Lecture notes in computer science, 5717 LNCS, page (477-484)
Publication Publié, 2009-02
Article révisé par les pairs
| Résumé : | Spatial Multiplexing (SM) is an effective means for enhancing the transmission data rate inMultiple-InputMultiple-Output(MIMO) systems, particularlywhen used in combinationwith precoding techniques. However, it is not always obvious to connect the performance of such a system to its number of data streams and antennas. In this paper, the diversity order of aSMMIMOsystemusing aMinimumMean SquareError (MMSE) receiver is analytically calculated when a precoder based on transmit antenna correlation is included at the transmitter. It is shown that it is given by d = Nr - N s + 1 where Nr is the number of receive antennas and Ns is the number of data streams. This result is confirmed by simulations. Although enabling a Signal-to-Noise Ratio (SNR) gain, such a precoder is thus not able to improve the diversity order with respect to a non-precoded SM MIMO system. © 2009 Springer-Verlag Berlin Heidelberg. |
