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Machine Intelligence Research

Erschienen in:

01.08.2014 | Regular paper

Distributed Power Control in Cooperative Cognitive Ad hoc Networks

verfasst von: Wen-Jiang Feng, Rong Jiang, Guo-Ling Liu

Erschienen in: Machine Intelligence Research | Ausgabe 4/2014

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Abstract

In this paper, a relay selection strategy and distributed power control algorithm are proposed for the underlay spectrum sharing mode based cooperative cognitive ad hoc network with energy-limited users. The study aims to minimize the total power consumption of cooperative cognitive ad hoc network while ensuring the quality of service (QoS) requirement of cognitive user and keeping the interference to primary user below interference tolerance. The power control problem is transformed into a convex optimization problem. Based on Lagrange dual decomposition theory, a gradient iterative algorithm is constructed to search for the optimal solution and complete distributed power optimization. Simulation results show that the algorithm converges fast and reduces transmit power of cognitive users effectively while guaranteeing the QoS requirement.

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Titel: Distributed Power Control in Cooperative Cognitive Ad hoc Networks
verfasst von: Wen-Jiang Feng
Rong Jiang
Guo-Ling Liu
Publikationsdatum: 01.08.2014
Verlag: Springer-Verlag
Erschienen in: Machine Intelligence Research / Ausgabe 4/2014
Print ISSN: 2731-538X
Elektronische ISSN: 2731-5398
DOI: https://doi.org/10.1007/s11633-014-0807-4

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