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 language | English (US) |
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Title of host publication | Proceedings of the WoWMoM 2015 |
Subtitle of host publication | A World of Wireless Mobile and Multimedia Networks |
Editors | Luciano Bononi, Guevara Noubir, Victoria Manfredi |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781479984619 |
DOIs | |
State | Published - Jul 14 2015 |
Event | 16th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WoWMoM 2015 - Boston, United States Duration: Jun 14 2015 → Jun 17 2015 |
Publication series
Name | Proceedings of the WoWMoM 2015: A World of Wireless Mobile and Multimedia Networks |
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Other
Other | 16th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WoWMoM 2015 |
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Country/Territory | United States |
City | Boston |
Period | 6/14/15 → 6/17/15 |
Bibliographical note
Publisher Copyright:© 2015 IEEE.
Keywords
- Cognitive radio networks
- conflict graph
- dual decomposition
- interference management