Nonlinear Channel Estimation and Signal Detection for Quantized OFDM System

作者：Liu, Ting^*; Jiang, Hao; Chen, Zhen; Zhang, Hongming; Yang, Xi; Shu, Feng

来源：IEEE Communications Letters, 2023, 27(10): 2772-2776.

DOI：10.1109/LCOMM.2023.3302311

• OFDM
• nonlinear measurements
• channel estimation
• signal detection

This letter studies the channel estimation and signal detection in the nonlinear orthogonal frequency division multiplexing (OFDM) system. The pilot-assisted channel estimator is obtained based on the theory of the Bayesian posteriori minimum mean square error (MMSE). Moreover, the quadrature amplitude modulation (QAM) signal detection is achieved in the principle of extrinsic expectation and extrinsic variance passing. Numerical results verify the superior performance of our proposal with relatively low computational complexity.

• 单位
  海南大学