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19922026
most citedWidely-Linear Digital Self-Interference Cancellation in Direct-Conversion Full-Duplex Transceiver

287 citations

Showing 2015Show all

9 papers · 1 filter

quant-ph2015★ 17 cited

Localization and limit laws of a three-state alternate quantum walk on a two-dimensional lattice

Takuya Machida, C. M. Chandrashekar

A two-dimensional discrete-time quantum walk (DTQW) can be realized by alternating a two-state DTQW in one spatial dimension followed by an evolution in the other dimension. This w…

cs.IT2015★ 21 cited

Sparse approximation based on a random overcomplete basis

Yoshinori Nakanishi-Ohno, Tomoyuki Obuchi, Masato Okada +1

We discuss a strategy of sparse approximation that is based on the use of an overcomplete basis, and evaluate its performance when a random matrix is used as this basis. A small co…

math.NA2015★ 1 cited

A genuinely stable Lagrange-Galerkin scheme for convection-diffusion problems

Masahisa Tabata, Shinya Uchiumi

We present a Lagrange-Galerkin scheme free from numerical quadrature for convection-diffusion problems. Since the scheme can be implemented exactly as it is, theoretical stability…

astro-ph.HE2015★ 18 cited

Probing the nature of the TeV gamma-ray binary HESS J0632+057 by monitoring Be disk variability

Yuki Moritani, Atsuo T. Okazaki, Alex C. Carciofi +9

We report on monitoring observations of the TeV gamma-ray binary HESS J0632+057, which were carried out to constrain the interaction between the Be circumstellar disk and the compa…

math.ST2015

Holonomic gradient method for distribution function of a weighted sum of noncentral chi-square random variables

Tamio Koyama, Akimichi Takemura

We apply the holonomic gradient method to compute the distribution function of a weighted sum of independent noncentral chi-square random variables. It is the distribution function…

quant-ph2015★ 4 cited

A limit law of the return probability for a quantum walk on a hexagonal lattice

Takuya Machida

A return probability of random walks is one of the interesting subjects. As it is well known, the return probability strongly depends on the structure of the space where the random…

physics.soc-ph2015★ 1 cited

Collective motion of oscillatory walkers

Takahiro Ezaki, Ryosuke Nishi, Daichi Yanagisawa +1

We study a system of interacting self-propelled particles whose walking velocity depends on the stage of the locomotion cycle. The model introduces a phase equation in the optimal…

physics.soc-ph2015★ 5 cited

Dynamics of assembly production flow

Takahiro Ezaki, Daichi Yanagisawa, Katsuhiro Nishinari

Despite recent developments in management theory, maintaining a manufacturing schedule remains difficult because of production delays and fluctuations in demand and supply of mater…

physics.soc-ph2015

Taming macroscopic jamming in transportation networks

Takahiro Ezaki, Ryosuke Nishi, Katsuhiro Nishinari

In transportation networks, a spontaneous jamming transition is often observed, e.g in urban road networks and airport networks. Because of this instability, flow distribution is s…