By Topic

Joint maximum-likelihood frequency synchronization and channel estimation in MIMO-OFDM systems with timing ambiguity

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

3 Author(s)
Salari, S. ; Fac. of Comput. & Electr. Eng., K.N. Toosi Univ. of Technol., Tehran, Iran ; Heydarzadeh, M. ; Cances, J.P.

In this paper, based on two different signal models, two different maximum-likelihood (ML) schemes for joint carrier frequency offset (CFO), timing ambiguity, and channel estimation in multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems have been proposed. The first scheme jointly estimates the timing offset, CFO and MIMO channel coefficients, but the complexity is high due to the need of multi-dimensional searches. The second scheme has a reduced complexity, but its performance slightly degrades compared with the first one. The cramer-rao bounds (CRBs) are also developed to evaluate the performance of the proposed schemes. Simulation results show that the performances of the proposed schemes are quite satisfying.

Published in:

Wireless Communication Systems (ISWCS), 2012 International Symposium on

Date of Conference:

28-31 Aug. 2012