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In cognitive radio networks (CRNs), primary-user (PUs) localization is a key aspect for improving network performance in terms of reliability and power adaptation. However, energy efficiency becomes a critical issue for localization in CRNs due to the limited energy storage in CR devices. In this paper, we propose an energy-efficient cooperative localization algorithm (EE-CLA) for PU positioning using...
In cognitive radio networks (CRNs), knowledge of the primary users (PUs) position can be used to avoid harmful interference to the primary network, while at the same time be exploited to improve CR performance. In this paper, a localization algorithm is developed to calculate PUs position and a novel location based CR (LCR) routing protocol is proposed that has the following properties: (i) it considers...
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