Efficient Joint Channel Estimation, Detection, and Decoding for MIMO URLLC Systems

The authors propose two novel trainable joint channel estimation, detection, and decoding (JCDD) receivers for MIMO ultra-reliable and low-latency communication (URLLC) systems encoded by short low-density parity-check (LDPC) codes. The receivers integrate the channel estimation, data detection, and LDPC decoding into a unified framework to mitigate error propagation and processing delay issues in traditional turbo receivers.