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http://dx.doi.org/10.12673/jant.2019.23.4.322

Cognitive User's Quality of Service Enhancement by using Spectrum Hole Grouping in Cellular Cognitive Radio Networks  

Lee, Jin-yi (Department of Electronic Engineering, Chungwoon University)
Publication Information
Journal of Advanced Navigation Technology / v.23, no.4, 2019 , pp. 322-327 More about this Journal
Abstract
In this paper, we propose first a scheme of grouping spectrum holes that are created in the multiple channels of primary users, and then by using the scheme we enhance quality of service (QoS) of wideband cognitive radio users in cellular cognitive radio networks. In our scheme, spectrum holes created in each primary channel are predicted by Wiener prediction process, and then the predicted spectrum holes happened in the same time are grouped into a group. The wideband cognitive radio users explore the group of spectrum holes to improve their QoS. Simulation results show that their handoff calls dropping rate and initial calls blocking rate are significantly reduced in our scheme, compared to those in the single primary channel.
Keywords
Spectrum hole grouping; Wiener prediction process; Wideband cognitive radio user; Handoff calls dropping rate; Cellular cognitive radio network;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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