35 citations · 102 across the 9 of their papers we have counts for
9 papers
On the Capacity of Generalized Quadrature Spatial Modulation
Kein Yukiyoshi, Naoki Ishikawa
In this letter, the average mutual information (AMI) of generalized quadrature spatial modulation (GQSM) is first derived for continuous-input continuous-output channels. Our mathe…
Accelerating Grover Adaptive Search: Qubit and Gate Count Reduction Strategies with Higher-Order Formulations
Yuki Sano, Kosuke Mitarai, Naoki Yamamoto +1
Grover adaptive search (GAS) is a quantum exhaustive search algorithm designed to solve binary optimization problems. In this paper, we propose higher-order binary formulations tha…
Optimal but Low-Complexity Optimization Method for Nonsquare Differential Massive MIMO
Yuma Katsuki, Naoki Ishikawa
In this paper, we propose an optimal but low-complexity optimization method for nonsquare differential massive MIMO. While a discrete nonlinear optimization is required for the con…
A New Noncoherent Gaussian Signaling Scheme for Low Probability of Detection Communications
Yuma Katsuki, Giuseppe Thadeu Freitas de Abreu, Koji Ishibashi +1
We propose a novel, Gaussian signaling mechanism for low probability of detection (LPD) communication systems with either single or multiple antennas. The new scheme is designed to…
Quantum Search Algorithm for Binary Constant Weight Codes
Kein Yukiyoshi, Naoki Ishikawa
A binary constant weight code is a type of error-correcting code with a wide range of applications. The problem of finding a binary constant weight code has long been studied as a…
Qubit Reduction and Quantum Speedup for Wireless Channel Assignment Problem
Yuki Sano, Masaya Norimoto, Naoki Ishikawa
In this paper, we propose a novel method of formulating an NP-hard wireless channel assignment problem as a higher-order unconstrained binary optimization (HUBO), where the Grover…
Quantum Algorithm for Higher-Order Unconstrained Binary Optimization and MIMO Maximum Likelihood Detection
Masaya Norimoto, Ryuhei Mori, Naoki Ishikawa
In this paper, we propose a quantum algorithm that supports a real-valued higher-order unconstrained binary optimization (HUBO) problem. This algorithm is based on the Grover adapt…
Noncoherent Massive MIMO with Embedded One-Way Function Physical Layer Security
Yuma Katsuki, Giuseppe Thadeu Freitas de Abreu, Koji Ishibashi +1
We propose a novel physical layer security scheme that exploits an optimization method as a one-way function. The proposed scheme builds on nonsquare differential multiple-input mu…
50 Years of Permutation, Spatial and Index Modulation: From Classic RF to Visible Light Communications and Data Storage
Naoki Ishikawa, Shinya Sugiura, Lajos Hanzo
In this treatise, we provide an interdisciplinary survey on spatial modulation (SM), where multiple-input multiple-output microwave and visible light, as well as single and multica…