@inproceedings{2d18efacaf2c4adfa3419eb208eee263,
title = "Effect of common carrier frequency offset at the OFDMA receiver",
abstract = "The effect of a common carrier frequency offset (CFO) at the OFDMA receiver is explored in this paper. In conventional CFO compensation methods for OFDMA systems, the CFOs are usually compensated for by directly eliminating the intercarrier interference (ICI) caused by the residual CFOs for individual users. Besides the ICI, the multiuser interference can be also introduced at the OFDMA receiver due to different CFO values for the users. From the theoretical and simulated analysis, we find that the mean square error performance of the demodulated output signal is related to a common CFO value which can be adjusted before the DFT. A new common CFO estimation method is then verified by numerical results to demonstrate that a better bit error rate performance can be obtained by using the proposed common CFO correction algorithm compared to conventional CFO compensation methods in OFDMA systems.",
keywords = "Carrier frequency offset, Mean square error, Multiuser interference, OFDMA",
author = "Chang, {Dah Chung} and Lai, {Yen Heng} and Hsu, {Yi Chia}",
year = "2009",
doi = "10.1109/ISCAS.2009.5117720",
language = "???core.languages.en_GB???",
isbn = "9781424438280",
series = "Proceedings - IEEE International Symposium on Circuits and Systems",
pages = "201--204",
booktitle = "2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009",
note = "2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009 ; Conference date: 24-05-2009 Through 27-05-2009",
}