Journal
ELECTRONICS
Volume 11, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/electronics11091460
Keywords
independent vector analysis; independent component analysis; permutation ambiguity; digital modulation; wireless communications
Categories
Funding
- Sichuan Science and Technology Program [2020JDJQ0061, 2021YFG0099]
- National Natural Science Foundation of China [61801319]
- Innovation Fund of Chinese Universities [2020HYA04001]
- Sichuan University of Science and Engineering Talent Introduction Project [2020RC33]
- Artificial Intelligence Key Laboratory of Sichuan Province Project [2021RZJ03, 2021RZJ04]
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This paper proposes an independent vector analysis (WA) detection receiver for blindly deconvolving the convolutive mixtures of digitally modulated signals for wireless communications. The method jointly carries out separation work for different frequency bin data fusion, and solves the random permutation problem of separation signals by exploiting the dependencies of frequency bins. Simulation results and analysis demonstrate the effectiveness of the proposed detection method.
For the purpose of overcoming the random permutation ambiguity of the frequency-domain-independent component analysis (FDICA) for blind separation of convolutive mixtures, this paper proposes an independent vector analysis (WA) detection receiver for blindly deconvolving the convolutive mixtures of digitally modulated signals for wireless communications. The foundation of IVA is through jointly carrying out separation work for different frequency bin data fusion, and the dependencies of frequency bins are exploited in solving the random permutation problem of separation signals. In addition, IVA uses multivariate prior distributions instead of the univariate distribution used in FDICA. Multivariate prior distribution is employed to preserve the interfrequency dependencies for individual sources, which can give rise to separation performance enhancement. Simulation results and analysis corroborate the effectiveness of the proposed detection method.
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