Paper ID | SPCOM-6.5 | ||
Paper Title | MULTI-BRANCH TOMLINSON-HARASHIMA PRECODING FOR RATE SPLITTING BASED SYSTEMS WITH MULTIPLE ANTENNAS | ||
Authors | Andre Robert Flores, Rodrigo de Lamare, Pontifical Catholic University of Rio de Janeiro, Brazil; Bruno Clerckx, Imperial College London, United Kingdom | ||
Session | SPCOM-6: System Design and Optimization | ||
Location | Gather.Town | ||
Session Time: | Friday, 11 June, 11:30 - 12:15 | ||
Presentation Time: | Friday, 11 June, 11:30 - 12:15 | ||
Presentation | Poster | ||
Topic | Signal Processing for Communications and Networking: [SPC-MIMO] Multiple-Input Multiple-Output | ||
IEEE Xplore Open Preview | Click here to view in IEEE Xplore | ||
Abstract | Rate splitting (RS) has emerged as a valuable technology for wireless communications systems due to its capability to deal with uncertainties in the channel state information at the transmitter (CSIT). RS with linear and non-linear precoders, such as the Tomlinson-Harashima (THP) precoder, have been explored in the downlink (DL) of multiuser multi antenna systems. In this work, we propose a multi-branch (MB) scheme for a RS-based multiple-antenna system, which creates patterns to order the transmitted symbols and enhances the overall sum rate performance compared to existing approaches. Analytical expressions to describe the signal-to-interference-plus-noise ratio (SINR) and compute the sum rate are derived. Simulation results show that the proposed MB-THP for RS outperforms conventional THP and MB-THP schemes. |