Research Article
An Optimized Pilot-Assisted Channel Estimation Method for Low-Dispersive Channels
@INPROCEEDINGS{10.1007/978-3-030-77424-0_5, author={Quang-Kien Trinh and Thi-Hong-Tham Tran and Thi-Bac Dang and Van-Thanh Nguyen}, title={An Optimized Pilot-Assisted Channel Estimation Method for Low-Dispersive Channels}, proceedings={Industrial Networks and Intelligent Systems. 7th EAI International Conference, INISCOM 2021, Hanoi, Vietnam, April 22-23, 2021, Proceedings}, proceedings_a={INISCOM}, year={2021}, month={5}, keywords={Channel estimation OFDM Comb-type Pilot DVB-T}, doi={10.1007/978-3-030-77424-0_5} }- Quang-Kien Trinh
Thi-Hong-Tham Tran
Thi-Bac Dang
Van-Thanh Nguyen
Year: 2021
An Optimized Pilot-Assisted Channel Estimation Method for Low-Dispersive Channels
INISCOM
Springer
DOI: 10.1007/978-3-030-77424-0_5
Abstract
In this paper, we present a novel pilot-assisted channel estimation algorithm for orthogonal frequency-division multiplexing (OFDM) wireless communication systems. The proposed method uses fewer pilots, which helps to increase the bandwidth (BW) efficiency while maintaining the adequate bit-error-rate (BER). A systematical approach for optimization of the pilot pattern applied in the low-dispersive channels is proposed and the performances using both the proposed and conventional estimation methods are quantitatively compared the performance in terms of BER for a case study of DVB-T/T2 system in 2K mode. MATLAB simulations are performed to evaluate the methods in the cases of the specific channel models (urban and rural models). From the simulation results, the novel estimation method gives out mostly the same BER while requiring only about 25% pilot number per symbol, compared with the conventional methods.
