2023/05/30 by Elisa Conti, Conti, Elisa, Amina Piemontese +5
Computer Science · Engineering · Mathematics · #Advanced MIMO Systems Optimization #Advanced Wireless Communication Techniques #Algorithm #Channel (broadcasting) #Computer science #Context (archaeology) #Convergence (economics) #Detector #Electronic engineering #Engineering #Fading #Mathematical optimization #Mathematics #Scheduling (production processes) #Telecommunications #Wireless Communication Networks Research
paper · pdf · doi:10.48550/arxiv.2305.19439
openalex publication_date 2023/05/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This paper aims at tackling the problem of signal detection in flat-fading channels. In this context, receivers based on the expectation propagation framework appear to be very promising although presenting some critical issues. We develop a new algorithm based on this framework where, unlike previous works, convergence is achieved after a single forward-backward pass, without additional inner detector iterations. The proposed message scheduling, together with novel adjustments of the approximating distributions' parameters, allows to obtain significant performance advantages with respect to the state-of-the-art solution. Simulation results show the applicability of this algorithm when sparser pilot configurations have to be adopted and a considerable gain compared to the current available strategies.