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Narrowband Internet of Things (NB-IoT) is a new access technology introduced by 3GPP. It aims to support massive machine-type communications services in wide area. This work presents an analytical model to estimate access success probability and average access delay of random access (RA) procedure for three coverage enhancement (CE) levels in NB-IoT. The behavior of RA procedure in NB-IoT is analyzed and accuracy of the analysis is verified by computer simulations.
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Harwahyu et al. (2017) studied this question.
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