Title :
Diversity Multiplexing Tradeoff in MIMO Frequency Selective Channels with Partial CSIT
Author :
Peng, Yong ; Josiam, Kaushik ; Rajan, Dinesh
Author_Institution :
Dept. of Electr. Eng., Southern Methodist Univ., Dallas, TX
fDate :
6/1/2008 12:00:00 AM
Abstract :
In this letter, we derive the optimal diversity- multiplexing tradeoff for a frequency selective MIMO channel with resolution-constrained channel feedback. The additional degree of freedom provided by the channel multipaths is succinctly captured in the tradeoff characterization. For instance, in a L-path SISO channel, with K-level feedback, the maximum diversity increase is exponential in K.
Keywords :
MIMO communication; diversity reception; feedback; multipath channels; multiplexing; radio transmitters; wireless channels; MIMO frequency selective channels; channel state information at the transmitter; diversity multiplexing tradeoff; multipath channel; partial CSIT; resolution-constrained channel feedback; Fading; Feedback; Frequency diversity; MIMO; Mutual information; OFDM modulation; Optimal control; Receiving antennas; Transmitters; Wideband;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2008.080228
