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http://dx.doi.org/10.17661/jkiiect.2019.12.4.406

Priority-Based Random Access control for M2M Service in 3GPP LTE-A System  

Kim, Nam-Sun (Division of Electrical & Electronic Engineering, Daejin University)
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.12, no.4, 2019 , pp. 406-412 More about this Journal
Abstract
In this paper, we propose two algorithms for classifying services with similar delay characteristics into three classes and allocating radio resources according to priority in LTE-A system where H2H and M2M services coexist. The first is to allocate resources from the higher priority class to the lower priority class, and each class gives priority to H2H over M2M, and the other is to give priority to H2H regardless of delay characteristics except for the class with the highest priority. The RA success probability was analyzed according to the access rate(${\alpha}$) of M2M devices in each class. In comparison with the conventional systems, it was improved from 0.5 to 0.52 for ${\alpha}_{2M}=0.05$ in two classes. In the three classes, the success probability was slightly increased from 0.5 to 0.57 for ${\alpha}_{2M}={\alpha}_{3M}=1$ and from 0.5 to 0.58 for ${\alpha}_{2M}=0.5$ and ${\alpha}_{3M}=0.1$. Although 6 services are considered in the proposed scheme, the RA success probability is almost similar to the previous scheme because the average arrival rate of H2H of each class is set to the same.
Keywords
3GPP LTE-A; H2H; M2M; Random Access; Success Probability;
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Times Cited By KSCI : 1  (Citation Analysis)
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