Diversity-Multiplexing Tradeoff of MIMO Systems with Partial Power Control

Thanh Tung Kim, M. Skoglund
2006 International Zurich Seminar on Communications  
The tradeoff between the diversity and multiplexing gains that can be simultaneously achieved over a slowly fading multiple-antenna channel with partial transmit side information is characterized in a recursive manner. It is assumed that the information rate grows as the long-term average transmit power increases, but does not adapt to the channel state. Partial power control is shown to be instrumental in achieving the optimal tradeoff over such a system. Our results indicate that the
more » ... e that the diversity gain can be increased considerably even with coarsely quantized channel state information, especially at low multiplexing gains.
doi:10.1109/izs.2006.1649091 fatcat:p62jgtfkgzdohnissbpmfiv5n4