Skip to Main content Skip to Navigation
Theses

Spectrum Sharing under Interference Constraints

Abdoulaye Bagayoko 1
1 ICI
ETIS - UMR 8051 - Equipes Traitement de l'Information et Systèmes
Abstract : In this thesis, we address the problem of spectrum-sharing for wireless communication where multiple users attempt to access a common spectrum resource under mutual interference constraints. Our objective is to evaluate the gains of sharing by investigating different scenarios of spectrum access. Studying the Gaussian Interference Channel with interferences considered as noise, we found a geometrical description and several characteristics of the achievable rate region. Considering a more realistic scenario, with each user having a certain QoS, we found necessary and sufficient condition to be fulfilled for simultaneous communications over the two-user Gaussian Interference Channel. Furthermore, we proposed two lower bounds for a single-primary-user mean rate, depending on the secondary user power control scheme. Specially, we investigated an original power control policy, for a secondary user, under outage performance requirement for both users and partial knowledge of the channel state information. Finally, considering a spectrumsharing with a licensee or primary user and several secondary or cognitive users, we showed the existence of an exclusive region around the primary receiver and we characterized the effects of shadowing and path-loss on this exclusive region (or no-talk zone).
Mots-clés : non renseignés
Complete list of metadatas

Cited literature [57 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00767930
Contributor : Michel Jordan <>
Submitted on : Saturday, January 5, 2013 - 6:55:12 PM
Last modification on : Thursday, December 17, 2020 - 12:14:32 PM
Long-term archiving on: : Friday, March 31, 2017 - 7:36:16 PM

Identifiers

  • HAL Id : tel-00767930, version 1

Citation

Abdoulaye Bagayoko. Spectrum Sharing under Interference Constraints. Signal and Image Processing. Université de Cergy Pontoise, 2010. English. ⟨tel-00767930⟩

Share

Metrics

Record views

378

Files downloads

994