Title :
Statistics-Based ICI Mitigation in OFDM over High-Mobility Channels with Line-of-Sight Components
Author :
Ma, Jun ; Orlik, Philip ; Zhang, Jinyun ; Li, Geoffrey Ye
Author_Institution :
Marvell Semicond. Inc., Santa Clara, CA, USA
fDate :
11/1/2011 12:00:00 AM
Abstract :
Statistics-based inter-subchannel interference (ICI) mitigation schemes are developed for orthogonal frequency division multiplexing (OFDM) transmission over high-mobility channels with line-of-sight components. By utilizing the channel statistics, we develop the Wiener filtering in the downlink and the transmit preprocessing in the uplink for ICI mitigation. Numerical and simulation results demonstrate that the proposed schemes effectively mitigate ICI and lower the error floor, especially in the presence of a strong line-of-sight path.
Keywords :
OFDM modulation; Wiener filters; intercarrier interference; interference suppression; mobility management (mobile radio); numerical analysis; statistical analysis; wireless channels; OFDM; Wiener filtering; channel statistics; error floor; high-mobility channels; line-of-sight components; line-of-sight path; numerical simulation; orthogonal frequency division multiplexing transmission; statistic-based ICI mitigation; statistic-based intersubchannel interference mitigation schemes; transmit preprocessing; Bit error rate; Correlation; Gain; Interference; OFDM; Signal to noise ratio; Inter-subchannel interference; OFDM; Wiener filtering; line-of-sight; transmit preprocessing;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2011.092011.101539
