Computer Science – Information Theory
Scientific paper
2007-06-08
Computer Science
Information Theory
21 pages, 8 figures, submitted for publication to "IEEE JSAC Special Issue on Multiuser Detection for Advanced Communication S
Scientific paper
We apply the replica method to analyze vector precoding, a method to reduce transmit power in antenna array communications. The analysis applies to a very general class of channel matrices. The statistics of the channel matrix enter the transmitted energy per symbol via its R-transform. We find that vector precoding performs much better for complex than for real alphabets. As a byproduct, we find a nonlinear precoding method with polynomial complexity that outperforms NP-hard Tomlinson-Harashima precoding for binary modulation on complex channels if the number of transmit antennas is slightly larger than twice the number of receive antennas.
Guo Dongning
Moustakas Aris L.
Mueller Ralf R.
No associations
LandOfFree
Vector Precoding for Wireless MIMO Systems: A Replica Analysis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Vector Precoding for Wireless MIMO Systems: A Replica Analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vector Precoding for Wireless MIMO Systems: A Replica Analysis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-652732