By Topic

Power Allocation for MMSE Feedback Precoder on Multi-Antenna Broadcast Channels

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Kuan Lun Huang ; Univ. of New South Wales, Sydney ; Jinhong Yuan

In this paper, we study the minimum-mean-squared- error feedback precoder (MMSE-FBP) for the multiple-input multiple-output (MIMO) Gaussian broadcast channel (BC). It has recently been shown that MMSE-FBP can achieve higher sum capacity than zero-forcing and MMSE precoders, however, it still leaves a gap to the MIMO BC sum capacity. We propose two new schemes involving dynamic power allocation among users. These new schemes build on top of the MMSE-FBP structure and are able to achieve the MIMO BC sum capacity. We also discuss how our new schemes compare with an existing one and demonstrate how the transmitter and receivers can be simplified if the system is operating in mid to high SNR region.

Published in:

Wireless Broadband and Ultra Wideband Communications, 2007. AusWireless 2007. The 2nd International Conference on

Date of Conference:

27-30 Aug. 2007