대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)
- 대한전자공학회 2001년도 제14회 신호처리 합동 학술대회 논문집
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- Pages.85-88
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- 2001
블라인드 동채널 신호 분리를 위한 순차적인 Joint Maximum Likelihood 알고리듬
A Sequential Joint Maximum Likelihood Algorithm for Blind Co-Channel Signal Separation
- Inseon Jang (Department of Computer Science & Engineering Pohang University of Science and Technology) ;
- Park, Seungjin (Department of Computer Science & Engineering Pohang University of Science and Technology)
- 발행 : 2001.09.01
초록
In this paper we consider a problem of blind co-channel signal separation, the goal of which is to estimate multiple co-channel digitally modulated signals using an antenna array. We employ the joint maximum likelihood estimation and present a sequential algorithm, which is referred to as sequential joint maximum likelihood (SJML) algorithm. It separates multiple co-channel signal on-line and converges fast in overdetermined noisy communication environment. And the computational complexity of SJML for M-QAM (M=8, 16, 64,...) signals is less expensive compared to the SLSP. Useful behavior of this algorithm are confirmed by simulations.
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