Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2001.09a
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- Pages.85-88
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- 2001
A Sequential Joint Maximum Likelihood Algorithm for Blind Co-Channel Signal Separation
블라인드 동채널 신호 분리를 위한 순차적인 Joint Maximum Likelihood 알고리듬
- 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)
- Published : 2001.09.01
Abstract
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.
Keywords