@article{LONG2009, 
author = {Yi LONG and Linling KUANG and Jianhua LU},
title = {Precoded OFDM System for ICI Mitigation over Time-Frequency Selective Fading Channels},
year = {2009},
journal = {Tsinghua Science and Technology},
volume = {14},
number = {2},
pages = {206-211},
keywords = {orthogonal frequency-division multiplexing (OFDM), time-varying, multipath, intercarrier interference},
url = {https://www.sciopen.com/article/10.1016/S1007-0214(09)70031-8},
doi = {10.1016/S1007-0214(09)70031-8},
abstract = {In orthogonal frequency-division multiplexing (OFDM) systems, the capability to support high mobility is greatly limited by the intercarrier interference (ICI) caused by time-frequency selective fading channels. This paper presents a precoded OFDM system for ICI mitigation. A precoder is introduced to relieve the ICI by transmitting N-point composite information symbols at twice the subcarrier interval. A Hadamard-matrix-like pilot pattern is used to recover the composite information symbols in a postprocessor at the receiver. Simulations show that, compared to the conventional self-cancellation scheme, this scheme gives much better signal-to-interference-noise ratio performance with much less overhead. Furthermore, the scheme can support twice the vehicle speed in time-frequency selective fading channels than the standard OFDM systems without ICI mitigation.}
}