22 citations · 76 across the 26 of their papers we have counts for
4 papers · 1 filter
Multiuser Detection by MAP Estimation with Sum-of-Absolute-Values Relaxation
Hampei Sasahara, Kazunori Hayashi, Masaaki Nagahara
In this article, we consider multiuser detection that copes with multiple access interference caused in star-topology machine-to-machine (M2M) communications. We assume that the tr…
Symbol Detection for Frame-Based Faster-than-Nyquist Signaling via Sum-of-Absolute-Values Optimization
Hampei Sasahara, Kazunori Hayashi, Masaaki Nagahara
In this letter, we propose a new symbol detection method for faster-than-Nyquist signaling (FTNS) systems. Based on frame theory, we formulate a symbol detection problem as a under…
Digital Cancelation of Self-Interference for Single-Frequency Full-Duplex Relay Stations via Sampled-Data Control
Hampei Sasahara, Masaaki Nagahara, Kazunori Hayashi +1
In this article, we propose sampled-data design of digital filters that cancel the continuous-time effect of coupling waves in a single-frequency full-duplex relay station. In this…
Sampled-data Optimization for Self-interference Suppression in Baseband Signal Subspaces
Hampei Sasahara, Masaaki Nagahara, Kazunori Hayashi +1
In this article, we propose a design method of selfinterference cancelers for wireless relay stations taking account of the baseband signal subspace. The problem is first formulate…