Interference coordination via power domain channel estimation

Abstract : A novel technique is proposed which enables each transmitter to acquire global channel state information (CSI) from the sole knowledge of individual received signal power measurements, which makes dedicated feedback or inter-transmitter signaling channels unnecessary. To make this possible, we resort to a completely new technique whose key idea is to exploit the transmit power levels as symbols to embed information and the observed interference as a communication channel the transmitters can use to exchange coordination information. Although the used technique allows any kind of low-rate information to be exchanged among the transmitters, the focus here is to exchange local CSI. The proposed procedure also comprises a phase which allows local CSI to be estimated. Once an estimate of global CSI is acquired by the transmitters, it can be used to optimize any utility function which depends on it. While algorithms which use the same type of measurements such as the iterative water-filling algorithm (IWFA) implement the sequential best-response dynamics (BRD) applied to individual utilities, here, thanks to the availability of global CSI, the BRD can be applied to the sum-utility. Extensive numerical results show that significant gains can be obtained and, this, by requiring no additional online signaling.
Type de document :
Article dans une revue
IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers, 2017, 16 (10), pp.6779-6794. 〈10.1109/twc.2017.2731340 〉
Liste complète des métadonnées

Littérature citée [33 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-01745369
Contributeur : Samson Lasaulce <>
Soumis le : mercredi 28 mars 2018 - 10:40:14
Dernière modification le : mardi 27 novembre 2018 - 14:41:00
Document(s) archivé(s) le : jeudi 13 septembre 2018 - 11:03:41

Fichier

TWV_ARXIV_final(5).pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Chao Zhang, Vineeth Varma, Samson Lasaulce, Raphaël Visoz. Interference coordination via power domain channel estimation. IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers, 2017, 16 (10), pp.6779-6794. 〈10.1109/twc.2017.2731340 〉. 〈hal-01745369〉

Partager

Métriques

Consultations de la notice

150

Téléchargements de fichiers

18