By Topic

Performance of space-time codes over a flat-fading channel using a subspace-invariant detector

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
$33 $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

1 Author(s)
K. W. Forsythe ; Lincoln Lab., MIT, Lexington, MA, USA

Multiple-input, multiple-output (MIMO) communications has received considerable attention in recent years. The flat-fading channel, with identical, independently distributed gains between all transmitter and receiver pairs has been one of the MIMO channels studied extensively. Many studies have focused on channel capacity and coding in additive white Gaussian noise. When the noise background has an unknown spatial covariance due to interference, receivers that adapt to the noise background can be more robust. One way of achieving robustness builds invariances into the detector, creating a channel model that incorporates adaptive beamforming naturally into signal detection and coding. In the particular case of frequency-hopped waveforms with random fading and hop to hop white noise, the capacity of this channel can be evaluated. A family of space-time codes for the invariant detector is investigated and its performance compared with the derived capacity bounds. Theoretical predictions of performance in interference and in different fading conditions are presented and compared with simulation results for a concatenated coding architecture involving space-time inner codes and low density parity-check outer code.

Published in:

Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on  (Volume:1 )

Date of Conference:

3-6 Nov. 2002