Research Article
An Improved Channel Estimation Method for LTE PUSCH
@INPROCEEDINGS{10.4108/icst.chinacom.2014.256311, author={chong ma and tao peng and zhonghua he and muhua chen}, title={An Improved Channel Estimation Method for LTE PUSCH}, proceedings={9th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2015}, month={1}, keywords={channel estimation virtual channnel frequency response frequency domain window function denoise strategy}, doi={10.4108/icst.chinacom.2014.256311} }- chong ma
tao peng
zhonghua he
muhua chen
Year: 2015
An Improved Channel Estimation Method for LTE PUSCH
CHINACOM
IEEE
DOI: 10.4108/icst.chinacom.2014.256311
Abstract
The DFT-based channel estimation method is widely used in OFDM systems due to a good balance between computation complexity and performance. But this DFT-based method encounters degradation of performance caused by the energy leakage from non-sample locations of the multipath timing. To alleviate the leakage effect, a channel estimation method by adding virtual channel frequency response (VCFR) was proposed in[7]. However, this VCFR method cannot adapt to the complicated situations of the uplink reception for LTE Physical Uplink Shared Channel(PUSCH). Owing to the above issue, an improved method which adopts a novel frequency window function and a new noise reduction strategy is presented. The superiority of the proposed method over other VCFR channel estimation methods is verified in performance and flexibility to various multipath fading channels