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Article Dans Une Revue EURASIP Journal on Advances in Signal Processing Année : 2014

CP decomposition approach to blind separation for DS-CDMA system using a new performance index

Résumé

In this paper, we present a canonical polyadic (CP) tensor decomposition isolating the scaling matrix. This has two major implications: (i) the problem conditioning shows up explicitly and could be controlled through a constraint on the so-called coherences and (ii) a performance criterion concerning the factor matrices can be exactly calculated and is more realistic than performance metrics used in the literature. Two new algorithms optimizing the CP decomposition based on gradient descent are proposed. This decomposition is illustrated by an application to direct-sequence code division multiplexing access (DS-CDMA) systems; computer simulations are provided and demonstrate the good behavior of these algorithms, compared to others in the literature.
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Dates et versions

hal-01120562 , version 1 (26-02-2015)

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Awatif Rouijel, Khalid Minaoui, Pierre Comon, Driss Aboutajdine. CP decomposition approach to blind separation for DS-CDMA system using a new performance index. EURASIP Journal on Advances in Signal Processing, 2014, 2014, pp.128-139. ⟨10.1186/1687-6180-2014-128⟩. ⟨hal-01120562⟩
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