Coarse frame and carrier synchronization of OFDM systems: A new metric and comparison Academic Article

abstract

• We propose a fast and reduced complexity frame and carrier acquisition scheme for orthogonal frequency-division multiplex systems which assumes either a continuous or a burst mode operation in additive white Gaussian noise and frequency-selective channels. By exploiting the repetitive structure of a training symbol, a robust frame synchronizer is obtained and shown to resume to finding the peak of a certain correlation metric that is obtained by invoking maximum likelihood principles. A modified carrier estimator that can correct frequency offsets up to two subcarrier spacings is also proposed. The efficiency of the proposed synchronization algorithms is illustrated by both theoretical performance analysis and computer simulations.

authors

• Serpedin, Erchin

published proceedings

• IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS

altmetric score

• 9

author list (cited authors)

• Shi, K., & Serpedin, E.

citation count

• 109

complete list of authors

• Shi, K||Serpedin, E

publication date

• July 2004

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Transactions on Wireless Communications  Journal

keywords

• Maximum Likelihood (ml) Estimation
• Orthogonal Frequency-division Multiplexing (ofdm)
• Synchronization
• Training Symbol

Digital Object Identifier (DOI)

• 10.1109/twc.2004.828282

start page

• 1271

end page

• 1284

volume

• 3

issue

• 4

URL

• http://dx.doi.org/10.1109/twc.2004.828282