235 citations · 521 across the 63 of their papers we have counts for
53 papers · 1 filter
Ordinary Differential Equation-based Sparse Signal Recovery
Tadashi Wadayama, Ayano Nakai-Kasai
This study investigates the use of continuous-time dynamical systems for sparse signal recovery. The proposed dynamical system is in the form of a nonlinear ordinary differential e…
Gradient Flow Decoding for LDPC Codes
Tadashi Wadayama, Kensho Nakajima, Ayano Nakai-Kasai
The power consumption of the integrated circuit is becoming a significant burden, particularly for large-scale signal processing tasks requiring high throughput. The decoding proce…
MMSE Signal Detection for MIMO Systems based on Ordinary Differential Equation
Ayano Nakai-Kasai, Tadashi Wadayama
Motivated by emerging technologies for energy efficient analog computing and continuous-time processing, this paper proposes continuous-time minimum mean squared error estimation f…
Proximal Decoding for LDPC-coded Massive MIMO Channels
Tadashi Wadayama, Satoshi Takabe
We propose a novel optimization-based decoding algorithm for LDPC-coded massive MIMO channels. The proposed decoding algorithm is based on a proximal gradient method for solving an…
Acceleration of Cooperative Least Mean Square via Chebyshev Periodical Successive Over-Relaxation
Tadashi Wadayama, Satoshi Takabe
A distributed algorithm for least mean square (LMS) can be used in distributed signal estimation and in distributed training for multivariate regression models. The convergence spe…
Deep Unfolded Multicast Beamforming
Satoshi Takabe, Tadashi Wadayama
Multicast beamforming is a promising technique for multicast communication. Providing an efficient and powerful beamforming design algorithm is a crucial issue because multicast be…