By Topic

Precoder Designs for MIMO Broadcast Channels with Imperfect CSI

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)
Ubaidulla, P. ; Dept. of ECE, Indian Inst. of Sci., Bangalore ; Chockalingam, A.

In this paper, we propose two robust precoder designs for multiple-input multiple-output (MIMO) broadcast channels with imperfect channel state information (CSI). First,we consider a precoder design for a multiuser multiple-input single-output (MISO) downlink, where a base station (BS) equipped with multiple transmit antennas communicates with user terminals which are equipped with a single receive antenna. For this scenario, we propose a robust precoder design based on the minimization of the total BS transmit power under constraints on individual user signal-to-interference-plus-noise ratio (SINR). We show that this problem can be formulated as a second order cone program (SOCP) that can be solved efficiently. Next, we consider a precoder design for a multiuser MIMO downlink, where the user terminals are equipped with multiple receive antennas. For this scenario, we propose a robust joint precoder/receive filter design based on the minimization of a stochastic function of the sum mean square error (SMSE), under a constraint on the total BS transmit power. We solve this problem through an iterative algorithm, wherein the optimization is performed with respect to the transmit precoder and the receive filter in an alternating fashion.

Published in:

Networking and Communications, 2008. WIMOB '08. IEEE International Conference on Wireless and Mobile Computing,

Date of Conference:

12-14 Oct. 2008