A blind widely linear minimum-output-energy algorithm

In this paper, a novel blind minimum-output-energy (MOE) algorithm for adjustment of the unbiased widely linear (WL) minimum mean-squared error (MMSE) filters for multiple access interference (MAI) suppression for direct-sequence code-division multiple access (DS-CDMA) is introduced and analyzed. We...

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Bibliographic Details
Main Authors: Schober, R., Gerstacker, W.H., Lampe, L.H.-J.
Format: Conference Proceeding
Language:English
Subjects:
Algorithm design and analysis
Convergence
Direct-sequence code-division multiple access
Multiaccess communication
Multiple access interference
Nonlinear filters
Signal analysis
Signal to noise ratio
Steady-state
Stochastic processes
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Summary:In this paper, a novel blind minimum-output-energy (MOE) algorithm for adjustment of the unbiased widely linear (WL) minimum mean-squared error (MMSE) filters for multiple access interference (MAI) suppression for direct-sequence code-division multiple access (DS-CDMA) is introduced and analyzed. We analyze the steady-state signal-to-interference-plus-noise ratio (SINR) and the convergence of the proposed blind WL stochastic gradient algorithm. Wherever possible comparisons with the linear blind MOE algorithm are made. Both analytical considerations and simulations show in good agreement the superiority of the novel WL adaptive algorithm. Nevertheless, it requires a lower computational complexity than its linear counterpart.
ISSN:1525-3511
1558-2612
DOI:10.1109/WCNC.2003.1200420