Wireless LAN White Papers
Low-Complexity Time-Domain ICI Equalization for OFDM Communications Over Rapidly Varying Channels
Overview This paper considers wireless OFDM communications over rapidly varying channels as occurring e.g. in high-mobility scenarios. Here, InterCarrier Interference (ICI) is the major source of impairment that limits the transmission quality. This paper proposes novel equalizers to combat ICI and enable reliable communications even at high Doppler frequencies. In contrast to existing frequency-domain approaches, the schemes operate in the time domain. This allows a low-complexity implementation without introducing any systematic channel approximation errors. Numerical simulations illustrate the effectiveness of the approach and show that in conjunction with channel coding the methods achieve significant Doppler diversity.
| Publisher | Vienna University of Technology | File Format | |
|---|---|---|---|
| Date Published | November 2006 | ||
| Format | White Papers | ||
| Topics | |||
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