Soft-Sensing CQI Feedback-Based Access Scheme in Cognitive Radio Networks
作者： Sara A Attalla , Karim G Seddik , Amr A El-Sherif , Sherif I Rabia , None
DOI: 10.1109/TCCN.2018.2826539
关键词:
摘要: In this paper, an access scheme for cognitive radio networks is proposed in which secondary users (SUs) make use of the primary user(s) (PUs) channel quality feedback information. SUs decide their transmission strategy based on PUs’ indicator (CQI) available PU network and SUs’ sensing activity. We consider two energy approaches, namely, hard-sensing, soft-sensing. An SU accesses with probabilities are selected to maximize service rate while ensuring requirements defined as queues’ stability. The system modeled using a multi-dimensional Markov chain. Closed-form expressions users’ throughput average packet delays derived. Moreover, selection formulated constrained optimization problem. Performance scheme, terms user delay, shown be superior other systems do not leverage CQI 1 Part paper was published [1] .
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