A Simple Message Passing Detector Based on QR-Decomposition for MIMO Systems
Akihide David Shigyo, Koji Ishibashi · 2018
This paper proposes a simple message passing detector with QR-decomposition for multi-input multi-output (MIMO) systems. Our message passing algorithm exploits the structure of QR-decomposed received signals and achieves optimum maximum likelihood (ML) detection with less complexity. Computer simulations confirm the superior performance of our proposed approach to conventional message passing techniques such as belief propagation (BP).