MMSE solution for OFDMA systems with carrier frequency offset correction

Dah Chung Chang, Tsung Han Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The multi-access orthogonal frequency division multiplexing OFDMA) technology has drawn a lot of attention in next generation wireless mobile communications. It is well-known that carrier frequency offsets in OFDMA systems can destroy the orthogonality among subcarriers and produce intercarrier interference (ICI) and multiuser interference (MUI). In our previous works, we proposed a common carrier frequency offset (CCFO) correction scheme at the OFDMA receiver, which can reduce the ICI/MUI effect and the bit error rate. In the scheme, the CFO correction can be performed by adaptively converging the MSE between the demodulated output and the decision feedback data. This paper studies the minimum MSE solution for the CCFO value, and the result is exploited to verify the adaptive CCFO estimation algorithm by means of the decision feedback. Simulation results show that the adaptive decision feedback scheme for CCFO estimation is effective and the minimum MSE performance is well achieved.

Original languageEnglish
Title of host publication2010 IEEE 71st Vehicular Technology
StatePublished - 2010
Event2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring - Taipei, Taiwan
Duration: 16 May 201019 May 2010

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252


Conference2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring


  • Carrier frequency offset
  • Intercarrier interference
  • Mean square error
  • Multiuser interference


Dive into the research topics of 'MMSE solution for OFDMA systems with carrier frequency offset correction'. Together they form a unique fingerprint.

Cite this