Underlay multi-hop cognitive networks with orthogonal access

Antonio G. Marques, Sergio Molinero, Georgios B Giannakis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Stochastic algorithms to allocate resources across different layers in an underlay multi-hop cognitive radio with primary and secondary users are presented. The algorithms aim to maximize the utility of the secondary users, while adhering to average interfering power constraints and accounting for the presence of imperfections in the state information. Interference among secondary users is modeled using a binary conflict graph, so that close-by secondary devices cannot transmit simultaneously. The optimal resource allocation dictates the power transmitted by each user, the rates at the transport, network and physical level, and the links to be activated. The design is casted as a nonlinear constrained optimization, and the solution is obtained using stochastic dual decomposition. Nu- merical experiments validate the theoretical claims.

Original languageEnglish (US)
Title of host publicationProceedings of the WoWMoM 2015
Subtitle of host publicationA World of Wireless Mobile and Multimedia Networks
EditorsVictoria Manfredi, Guevara Noubir, Luciano Bononi
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479984619
DOIs
StatePublished - Jul 14 2015
Event16th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WoWMoM 2015 - Boston, United States
Duration: Jun 14 2015Jun 17 2015

Publication series

NameProceedings of the WoWMoM 2015: A World of Wireless Mobile and Multimedia Networks

Other

Other16th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WoWMoM 2015
CountryUnited States
CityBoston
Period6/14/156/17/15

Keywords

  • Cognitive radio networks
  • conflict graph
  • dual decomposition
  • interference management

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  • Cite this

    Marques, A. G., Molinero, S., & Giannakis, G. B. (2015). Underlay multi-hop cognitive networks with orthogonal access. In V. Manfredi, G. Noubir, & L. Bononi (Eds.), Proceedings of the WoWMoM 2015: A World of Wireless Mobile and Multimedia Networks [7158197] (Proceedings of the WoWMoM 2015: A World of Wireless Mobile and Multimedia Networks). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WoWMoM.2015.7158197