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T-Comm_Article 9_11_2021

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RESOURCE ALLOCATION MODEL FOR LTE TECHNOLOGY
WITH FUNCTIONALITY OF NB-IOT AND RESERVATION

Sergey N. Stepanov, Moscow Technical University of Communications
and Informatics, Moscow, Russia, stpnvsrg@gmail.com
Juvent Ndayikunda, Moscow Technical University of Communications
and Informatics, Moscow, Russia, juvndayi@mail.ru
Margarita G. Kanishcheva, Moscow Technical University of Communications
and Informatics, Moscow, Russia, margo.kan@list.ru

Abstract
The tremendous growth in the volume of multimedia data streams to be collected by multiple video cameras and a large number of sensors or smart meters in the Internet of Things application is one of the main challenges in the transition from 4G to true 5G network systems. The necessity of conjoint servicing of heterogeneous data over the existing infrastructure has been recognized and supported by 3GPP by introducing the standardization and formalization of Narrowband Internet of Things (NB-IoT) technology. The NB-IoT is the most promising technology for big data collection in the IoT landscape thanks to its particular characteristics such as long-range coverage (10 km), high energy efficient consumption and low-cost radio design. The same spectrum is shared between LTE high-rate end equipment and NB-IoT low-rate end devices. However, the challenge is how to share efficiently the available radio resources between multiple complex devices with priorities of some type of data flow. The model of resource sharing for conjoint servicing for both traffic originated by video surveillance cameras and by sensors is constructed. Access control offering priority to one type of flows is used to create the differentiated servicing of the incoming sessions. Probability values of the constructed model’s stationary states are used to determine the main performance measures. The constructed mathematical model can be used to study the reservation based resource allocation and sharing scenarios between the LTE and NB-IoT traffic flow over 3GPP LTE with NB-IoT functionality.

Keywords: reservation strategy, resource sharing, Internet of Things, LTE, performance measures, system of state equations

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Information about authors:

Sergey N. Stepanov, professor, doctor of science, MTUCI, head of the chair of communication networks and commutation systems, Moscow, Russia
Juvent Ndayikunda, PhD student, MTUCI, the chair of communication networks and commutation systems, Moscow, Russia
Margarita G. Kanishcheva, PhD student, MTUCI, the chair of communication networks and commutation systems, Moscow, Russia