2 citations · 2 across the 8 of their papers we have counts for
4 papers · 1 filter
Expectation Propagation-Based Signal Detection for Highly Correlated MIMO Systems
Kabuto Arai, Takumi Yoshida, Takumi Takahashi +1
Large-scale multiple-input-multiple-output (MIMO) systems typically operate in dense array deployments with limited scattering environments, leading to highly correlated and ill-co…
Joint Pilot Allocation and Sequence Design for MIMO-OFDM Systems With Channel Sparsity
Kabuto Arai, Koji Ishibashi, Hiroki Iimori +3
This paper proposes a joint optimization of pilot subcarrier allocation and non-orthogonal sequence for multiple-input-multiple-output (MIMO)-orthogonal frequency-division multiple…
Revisiting Beamforming Design for Stable Millimeter-Wave Communications Under Blockages
Kanta Terui, Kabuto Arai, Koji Ishibashi
This paper investigates robust analog beamforming for millimeter-wave (mmWave) communications under stochastic path blockages using multi-panel arrays. Conventional designs concent…
Adaptively Weighted Averaging Over-the-Air Computation and Its Application to Distributed Gaussian Process Regression
Koya Sato, Koji Ishibashi
This paper introduces a noise-tolerant computing method for over-the-air computation (AirComp) aimed at weighted averaging, which is critical in various Internet of Things (IoT) ap…