93 citations · 208 across the 52 of their papers we have counts for
3 papers · 1 filter
Grant-Free Access via Bilinear Inference for Cell-Free MIMO with Low-Coherent Pilots
Hiroki Iimori, Takumi Takahashi, Koji Ishibashi +2
We propose a novel joint activity, channel, and data estimation (JACDE) scheme for cell-free multiple-input multiple-output (MIMO) systems compliant with fifth-generation (5G) new…
Full-Duplex MIMO Systems with Hardware Limitations and Imperfect Channel Estimation
Hiroki Iimori, Giuseppe Thadeu Freitas de Abreu, Koji Ishibashi
We consider a bidirectional in-band full-duplex (FD) multiple-input multiple-output (MIMO) system subject to imperfect channel state information (CSI), hardware distortion, and lim…
Robust Symbol Detection in Overloaded NOMA Systems
Hiroki Iimori, Giuseppe Thadeu Freitas de Abreu, Hara Takanori +5
We present a framework for the design of low-complexity and high-performance receivers for multidimensional overloaded NOMA systems. The framework is built upon a novel compressive…