Industrial Cooperation Foundation Chonbuk National University

Other

Moon Ho Lee

Seong Ho Bae

Xiao-Dong Zhang

Danping Xu

Mustafa M Matalgah

Wei Song

Han Hai

Dae Chul Park

Provided herein is a fast block circulant generated Hadamard matrix which is called jacket matrices of orders N=2p,4p,4p,np, wherein k is a positive integer. The block Toeplitz circulant jacket matrices possess many properties of Walsh-Hadamard Toeplitz transform and also have the construction of block circulant, which can be applied to fast algorithms for decomposition easily. The matrix decomposition is of the form of the products of block identity Imatrix and block Hadamard Hmatrix. The block Toeplitz circulant jacket matrices can be applied to the Kronecker MIMO channel.

MIMO communication method and system using the block circulant jacket matrices

A signal transformation apparatus, a signal transformation method, and a recording medium are provided. The signal transformation apparatus selects any one of DCT-II, DST-II, DFT, and HWT, and transforms and outputs the input signal according to the selected transform. Therefore, the hybrid architecture of low complexity can be attained.

Signal transformation apparatus applied hybrid architecture, signal transformation method, and recording medium

It is well known that relay-based DF cooperative wireless networks outperform AF cooperative networks. However, this performance enhancement is achievable through considerable signal processing (precoding/decoding) at relay nodes. To reduce the precoding/decoding complexity, a method for precoding and decoding a distributive MIMO channel in the relay-based DF cooperative wireless network using EVD based on properties of Jacket transformations is provided.

Method for precoding and decoding distributing MIMO channels in relay-based DF cooperative wireless networks

A signal processing device and an image processing device are provided. The signal processing device includes a matrix calculator for performing a matrix operation selected by a switch part among a DCT matrix operation, a Haar matrix operation, and a Slant matrix operation, with respect to an input signal. Thus, the signal processing device can be implemented in a hybrid architecture capable of selectively processing the DCT-II transform, the Haar transform, and the Slant transform with a single chip.

Signal processing device and image processing device

A space defining structure for magnetic homogenization is disclosed. The space defining structure of this invention is specifically designed to homogenize the magnetic field within its interior space, thus minimizing a malfunctioning or damage of electronic equipment or ill-effect on living matters within houses and buildings due to a localized geomagnetic disturbance. Such a localized geomagnetic disturbance may be generated by a variety of magnetic structures, such as the interior structures of the earth's crust, for example, stratum structures, underground water and water veins, a variety of magnetic materials, a variety of electronic devices or the reinforcing bars of the houses or buildings. The space defining structure for magnetic homogenization of this invention consists of a magnetic field focusing member forming the bottom wall of the space structure. The space defining structure also has at least one magnetic field dispersing member extending from the magnetic field focusing member while defming the desired interior space of the structure in cooperation with the magnetic field focusing member

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Jeonju-si, South Korea

Moon Ho Lee