Turbo Product Code-aided Spatiotemporal 2-d Coded Mimo for Urllc
The ultra-reliable low-latency communication (URLLC) scenario beyond the fifth-generation mobile networks requires latency to shift from ms-level to ms-level while maintaining low packet error rates. Short block-length codes can reduce latency but suffer from performance degradation. Asymptotic analyses indicate that increasing spatial degrees of freedom in multiple-input multiple-output (MIMO) systems help to achieve target error rates with a fixed block length and signal-to-noise ratio. To approach the upper bound of the average maximal achievable information rate in massive MIMO systems, spatiotemporal 2-D channel coding has been proposed. However, a considerable gap remains between the performance of the existing coding scheme and the theoretical capacity bound. To bridge this gap, this article introduces turbo product codes aided spatiotemporal 2-D coded MIMO systems (TPCAS-MIMO). Multi-level design on the baseband MIMO transceiver, involving encoding, interleaving, modulation, detection, and decoding schemes, is explored to boost the performance of TPCAS-MIMO with low latency for URLLC. In comparison to prior arts, this work achieves a 5.5 dB SNR gain at a frame error rate of 10(-5) using (64, 42)(2) polar turbo product codes in a 64 x 128 MIMO system, narrowing to a mere 2.5 dB gap from the theoretical capacity bound.
WOS:001518840100001
Purple Mountain Laboratories
Purple Mountain Laboratories
Purple Mountain Laboratories
Purple Mountain Laboratories
École Polytechnique Fédérale de Lausanne
Purple Mountain Laboratories
Purple Mountain Laboratories
Purple Mountain Laboratories
Purple Mountain Laboratories
Purple Mountain Laboratories
2025-06-24
REVIEWED
EPFL