ICT Express (Jun 2022)

Estimation of channel MSE for ATSC 3.0 receiver and its applications

  • Yu-Sun Liu,
  • Chun-Hung Huang,
  • Shingchern D. You

Journal volume & issue
Vol. 8, no. 2
pp. 202 – 206

Abstract

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In this paper, we propose a method to estimate the mean square error (MSE) of the estimated channel for ATSC (Advanced Television Systems Committee) 3.0 systems. When combining the channel MSE and noise variance, we can better estimate the a priori LLR (log likelihood ratio) for the sum–product algorithm. The experimental results show that doing so yields better BER (bit error rate) performance in the 0 dB echo channel. The improvement in the 2-D channel estimation is about 0.2 dB. In the 1-D estimation case, the proposed approach is essential to decode codewords.

Keywords