Diversity vs. Adaptivity in Multiple Antenna Systems

Authors:

Abstract:

An information theoretic analysis of multiple antenna systems shows that the possible gain due to transmitter-sided channel knowledge is usually small for uncorrelated fading. However, it is not obvious how these results translate to real-world transmission strategies. Thus, in this paper the error performance of adaptive bit and power loading with perfect channel state information is compared to that of high-rate multistratum space-time codes relying only on transmit diversity. We demonstrate that the latter may even outperform the adaptive scheme if discrete rate constraints are taken into account.

Document type:

Conference Paper

Publication:

New York, USA, 5. - 8. June 2005

Conference:

IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2005)

Index:

247

Files:

Paper