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The New Block Circulant Hadamard Matrices

새로운 블록순환 Hadamard 행렬

  • Park, Ju Yong (Department of Internet, Information & Communication, Shyngyeong University) ;
  • Lee, Moon Ho (Division of Electronic Engineering, Chonbuk National University) ;
  • Duan, Wei (Division of Electronic Engineering, Chonbuk National University)
  • 박주용 (신경대학교 인터넷정보통신학과) ;
  • 이문호 (전북대학교 전자공학부) ;
  • 단위 (전북대학교 전자공학부)
  • Received : 2013.11.08
  • Accepted : 2014.03.01
  • Published : 2014.05.25

Abstract

In this paper we review the typical Toeplitz matrices and block circulant matrices, and propose the a circulant Hadamard matrix which is consisted of +1 and -1, but its structure is different from typical Hadamard matrix. The proposed circulant Hadamard matrix decreases computational complexities to $Nlog_2N$ additions through high speed algorithm compare to original one. This matrix is able to be applied to Massive MIMO channel estimation, FIR filter design, amd signal processing.

본 논문에서는 기존 Toeplitz행렬(matrix)과 블록 순환(block circulant)행렬에 대해 검토하고, 새로운 순환 Hadamard 행렬을 제안했다. 제안한 순환 Hadamard 행렬은 +1과 -1로 구성되나 구조가 기존 Hadamard 행렬과는 다르다. 고속 알고리즘을 통해 원래의 계산량을 $Nlog_2N$개의 덧셈으로 줄일 수 있다. 이 행렬은 Massive MIMO 채널 추정 및 FIR 필터 설계, 신호처리 등에 응용이 가능하다.

Keywords

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