| HAL : hal-00014668, version 1 |
| arXiv : math.PR/0507172 |
| Fiche détaillée | Récupérer au format |
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| Deterministic equivalents for certain functionals of large random matrices |
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| W. HachemPhilippe Loubaton 1 |
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| (2005) |
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| Consider a $N\times n$ random matrix $ Y_n$ where the entries are independent but not identically distributed (matrices with a variance profile) Consider now a deterministic $N\times n$ matrix $A_n$ whose columns and rows are uniformly bounded for the Euclidean norm. Let $\Sigma_n=Y_n+A_n$. We prove in this article that there exists a deterministic equivalent to the empirical Stieltjes transform of the distribution of the eigenvalues of $\Sigma_n \Sigma_n^T$ which is itself the Stieltjes transform of a probability measure. This work is motivated by the context of performance evaluation of Multiple Inputs / Multiple Output (MIMO) wireless digital communication channels. As an application, we derive a deterministic equivalent to the mutual information of a wireless channel. |
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| 1 : | Laboratoire d'Informatique Gaspard-Monge (LIGM) |
| Université Paris-Est Marne-la-Vallée (UPEMLV) – ESIEE – Ecole des Ponts ParisTech – Fédération de Recherche Bézout – CNRS : UMR8049 | |
| 2 : | Laboratoire Traitement et Communication de l'Information [Paris] (LTCI) |
| Télécom ParisTech – CNRS : UMR5141 | |
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| Domaine | : | Mathématiques/Probabilités Mathématiques/Statistiques |
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| Lien vers le texte intégral : |
| hal-00014668, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00014668 | |
| oai:hal.archives-ouvertes.fr:hal-00014668 | |
| Contributeur : Olivier Cappé | |
| Soumis le : Mardi 29 Novembre 2005, 09:39:14 | |
| Dernière modification le : Mardi 29 Novembre 2005, 09:39:14 | |