Title :
Low-Complexity Decision Feedback Channel Estimation Approach for High Mobility OFDM
Author :
Yang Xiao-ping ; Gu Ya-ping ; Zhang Jun
Author_Institution :
Shanghai Acoust. Lab., Inst. of Acoust., Shanghai, China
Abstract :
Orthogonal frequency-division multiplexing (OFDM) wireless communication systems suffer severe inter- channel interference(ICI) due to high Doppler frequency spread, the paper investigate a kind of channel estimation approach that combines the multiply continue OFDM symbols and decision feedback technology. Further, we present a low-complexity algorithm to evaluate the ICI components for decision feedback, computer simulation result demonstrates the approach improves performance considerably and the low-complexity algorithm conducts a little loss of performance.
Keywords :
OFDM modulation; adjacent channel interference; channel estimation; ICI components; OFDM symbols; OFDM wireless communication systems; computer simulation; high-Doppler frequency spread; high-mobility OFDM; interchannel interference; low-complexity decision feedback channel estimation approach; orthogonal frequency division multiplexing; Channel estimation; Complexity theory; Doppler effect; Estimation; Noise; OFDM; Proposals;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-684-2
DOI :
10.1109/WiCOM.2012.6478567
