An efficient sparse channel estimator combining time-domain LS and iterative shrinkage for OFDM systems with IQ-imbalances.
Feng ShuJunhui ZhaoXiaohu YouMichael Mao WangQian ChenStevan M. BerberPublished in: Sci. China Inf. Sci. (2012)
Keyphrases
- ofdm system
- estimation algorithm
- recursive least squares
- channel estimation
- soft thresholding
- wireless communication
- orthogonal frequency division multiplexing
- carrier frequency offset
- multipath
- computationally efficient
- maximum likelihood
- denoising
- fading channels
- frequency selective
- image denoising
- bit error rate
- wavelet domain
- wireless communication systems
- sparse representation
- decision directed
- least squares
- frequency domain
- adaptive filtering
- communication systems
- signal to noise ratio
- computer simulation