Rate adaptive transmission scheme for MIMO systems

Details Rate adaptive transmission scheme for MIMO systems Rate adaptive transmission scheme for MIMO systems

2005-03-29

2005-03-29

Pham, Chi (Department: 2663)

Multiplex communications

Communication over free space

C375S267000

Reexamination Certificate

active

06873606

ABSTRACT:
A rate adaptive transmission scheme for MIMO systems, which can transmit a variable number of data symbol streams, provide transmit diversity for each data symbol stream, and fully utilize the total transmit power of the system and the full power of each antenna. In one method, at least one data symbol stream is received for transmission from a plurality of antennas. Each data symbol stream is scaled with a respective weight corresponding to the amount of transmit power allocated to that stream. The scaled data symbol stream(s) are multiplied with a transmit basis matrix to provide a plurality of transmit symbol streams for the plurality of antennas. The transmit basis matrix (e.g., a Walsh-Hadamard matrix or a DFT matrix) is defined such that each data symbol stream is transmitted from all antennas and each transmit symbol stream is transmitted at (or near) the full power for the associated antenna.

REFERENCES:
patent: 20030003863 (2003-01-01), Thielecke et al.
patent: 20030076797 (2003-04-01), Lozano
patent: 20030186650 (2003-10-01), Liu
patent: 20030218973 (2003-11-01), Oprea et al.
patent: 20040023621 (2004-02-01), Sugar et al.
Pitas et al. “Multichannel Transforms for Signal/Image Processing”. IEEE. Oct. 1996. pp. 1402-1413.*
Miller et al. “Digital Prefiltering for Multiple-input, Multiple-Output Receivers”. IEEE. 2001. pp. 1696-1699.*
Nam et al. “Transmit Power Allocation for an Extended V-Blast System”. IEEE. Sep. 15-18, 2002. pp. 843-848.

Affiliated with

Also associated with

Rating

Rate adaptive transmission scheme for MIMO systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rate adaptive transmission scheme for MIMO systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rate adaptive transmission scheme for MIMO systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3409354