Stability region characterization of a two-user age of information restricted cognitive radio model

Mohamed, Ali Gaber; Gamal, Mahmoud

doi:10.1016/j.aej.2023.04.015

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…However, following the PU delay, if there is an SU packet being processed, the PU packet has the ability to interrupt the transmission in order to receive its own service. However, the timing of the packets' arrival is a determining factor [26]. The PU packet experiences a delay of one unit of time.…”

Section: Delay By Pusmentioning

confidence: 99%

Optimizing Priority Queuing Systems with Server Reservation and Temporal Blocking for Cognitive Radio Networks

Behera,

Imoize,

Singh

et al. 2024

Telecom

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In the domain of cognitive radio (CR), unlicensed users have the opportunity to efficiently use available spectrum bands without interfering with licensed primary users (PUs). Our study addresses the challenge of secondary user (SU) spectrum shortage due to high arrival rates of licensed users. We propose two models aimed at improving the average total waiting time for SUs in such scenarios. These models incorporate non-acquired and preemptive priority mechanisms within the M/D/1 model of a PU delay system. Through quantitative evaluations and Monte Carlo simulations, we evaluate the performance of these models. Our findings show significant improvements in average waiting time for both PUs and SUs, especially under the priority scheme. Furthermore, we explore these models in the context of real-time systems, considering the limited buffer capacity for both user types. This further improves the average waiting time for PUs and SUs in both priority schemes. Our contribution lies in providing effective solutions to mitigate SU shortages in CR networks, providing insight into priority-based approaches and real-time system considerations.

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Section: Delay By Pusmentioning

confidence: 99%