Title :
OFDM and Its Wireless Applications: A Survey
Author :
Hwang, Taewon ; Yang, Chenyang ; Wu, Gang ; Li, Shaoqian ; Li, Geoffrey Ye
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul
fDate :
5/1/2009 12:00:00 AM
Abstract :
Orthogonal frequency-division multiplexing (OFDM) effectively mitigates intersymbol interference (ISI) caused by the delay spread of wireless channels. Therefore, it has been used in many wireless systems and adopted by various standards. In this paper, we present a comprehensive survey on OFDM for wireless communications. We address basic OFDM and related modulations, as well as techniques to improve the performance of OFDM for wireless communications, including channel estimation and signal detection, time- and frequency-offset estimation and correction, peak-to-average power ratio reduction, and multiple-input-multiple-output (MIMO) techniques. We also describe the applications of OFDM in current systems and standards.
Keywords :
MIMO communication; OFDM modulation; channel estimation; frequency estimation; intersymbol interference; signal detection; wireless channels; MIMO techniques; OFDM system; channel estimation; frequency-offset estimation; intersymbol interference; multiple-input-multiple-output techniques; orthogonal frequency division multiplexing system; peak-to-average power ratio reduction; signal detection; time-offset estimation; wireless channels; wireless communications; Channel estimation; frequency-offset estimation; intercarrier interference (ICI); multicarrier (MC); multiple-input–multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM); peak-to-average power reduction; time-offset estimation; wireless standards;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2008.2004555
