[en] Satisfying the quality of service (QoS) requirements of users in the form of channel availability and service retainability within the resource limited environment has been a major problem in cognitive radio networks. In this connection, several research studies have been carried out in the literature to improve the QoS of users by proposing dynamic channel reservation algorithms. However, the studies have a number of limitations in their conceptual and mathematical modeling of channel availability and service retainability, which render their performance evaluation unreliable. In this paper, we address these limitations for leading to more realistic, reliable, and practically valid modeling. For conceptual modeling, we use connection availability in place of channel availability, motivated by the fact that the latter does not necessarily lead to a successful establishment of connection and, thus, is not a suitable performance indicator. For instance, obtaining a channel for transmission is of no avail if the intended receiver is inaccessible. Similarly, we consider service retainability with accessibility/inaccessibility of the intended receiver incorporated. For mathematical modeling, we use CTMC and the resultant closed from expressions to include all the required states of channel availability yet unsuccessful connection establishment. Additionally, we derive closed form equations for channel availability and service retainability that are in exact conformance with the CTMC model. Results confirm that considering the impact of receiver’s accessibility leads to performance difference for the channel availability and service retainability presented in the sate-of-the-art.
Electrical & electronics engineering
Author, co-author :
Khan, Abd Ullah
Khan, Wali Ullah ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
External co-authors :
On reliability in the performance analysis of cognitive radio networks
Alternative titles :
[en] On reliability in the performance analysis of cognitive radio networks
Publication date :
Journal title :
Journal of King Saud University - Computer and Information Sciences
Balapuwaduge, I.A., Li, F.Y., Pla, V., Dynamic spectrum reservation for CR networks in the presence of channel failures: Channel allocation and reliability analysis. IEEE Trans. Wireless Commun. 17:2 (2018), 882–898.
Abbas, G., et al. FMCPR: Flexible multiparameter-based channel prediction and ranking for CR-enabled massive IoT. IEEE Internet Things J., 2021 In press.
Khan, A.U., Abbas, G., et al. Spectrum utilization efficiency in CRNs with hybrid spectrum access and channel reservation: a comprehensive analysis under prioritized traffic. Future Gener. Comput. Syst., 2021 In press.
Khan, A.U., et al. Spectrum utilization efficiency in the cognitive radio enabled 5G-based IoT. J. Netw. Comput. Apps 164:102686 (2020), 1–16.
Khan, A.U., Abbas, G., et al. Spectrum efficiency in CRNs using hybrid dynamic channel reservation and enhanced dynamic spectrum access. Ad Hoc Net. 107:102246 (2020), 1–16.
Zaghouani, M.H., et al., 2021. Reliability analysis of Cognitive Radio Networks with balking and reneging. In: Intl. Conf. on Inf. and Digit. Technol. (IDT), Zilina, Slovakia, 2021, pp. 212–215.
Nemouchi, H., et al., 2021. Simulation Analysis in Cognitive Radio Networks with Unreliability and Abandonment, in: Info. Technol. and Mathematical Modelling. Queueing Theory and Appl. Cham: Springer International Publishing, 2021, pp. 31–45.
Zaghouani, M.H., et al., 2019. Reliability Analysis of Cognitive Radio Networks. In: Intl. Conf. on Inf. and Digit. Technol. (IDT), Zilina, Slovakia, 2019.
Younes, O., Thomas, N., 2013. A path connection availability model for MANETs with random waypoint mobility. In: Computer Performance Engineering, M. Tribastone and S. Gilmore, Eds. Berlin, Heidelberg: Springer, Berlin Heidelberg, pp. 111–126.
Cardote, A., Sargento, S., Steenkiste, P., 2010. On the connection availability between relay nodes in a VANET. In: 2010 IEEE Globecom Workshops, pp. 181–185.
Shooman, A.M., 1995. Algorithms for network reliability and connection availability analysis. In: Proceedings of Electro/International 1995, pp. 309–333.
Tse, D.N.C., Zeitouni, O., Linear multiuser receivers in random environments. IEEE Trans. Inf. Theory 46:1 (2000), 171–188.