Research Article
New Method of Implementation for Channel Estimation in LTE System based on GPP
@INPROCEEDINGS{10.1109/ChinaCom.2012.6417596, author={Ri Li and Kai Niu and Kuilin Chen and Lifeng He}, title={New Method of Implementation for Channel Estimation in LTE System based on GPP}, proceedings={First International Workshop on C-RAN}, publisher={IEEE}, proceedings_a={C-RAN}, year={2013}, month={2}, keywords={lte simd gpp real time channel estimation interpolation}, doi={10.1109/ChinaCom.2012.6417596} }- Ri Li
Kai Niu
Kuilin Chen
Lifeng He
Year: 2013
New Method of Implementation for Channel Estimation in LTE System based on GPP
C-RAN
IEEE
DOI: 10.1109/ChinaCom.2012.6417596
Abstract
Long Term Evolution (LTE) system supports high-speed data transmission, thus high demand for real-time is a challenging and crucial problem. Meanwhile, channel estimation is the important module for the whole physical layer process. In this paper, the Single Instruction Multiple Data (SIMD) technology as a new method for signal processing is applied to implement this module based on general purpose processor (GPP). Through theoretical analysis and comparison between different algorithms for channel estimation, least square (LS) with linear interpolation is adopted to meet the requirement of real-time. The latency of the proposed processing method is evaluated by simulations. The simulation results show that the proposed method is much more efficient than the conventional processing without SIMD.