Enhancing random access success probability for NB-IoT over NTN

Narrow band Internet of Things (NB-IoT) is a technology that has been growing in recent years and will continue to play an important role in fifth (5G) and sixth (6G) generations of mobile communications in upcoming years. NB-IoT covers a big part of the communication market segment with several exa...

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Detalles Bibliográficos
Autor: Moliner Préjano, Álvaro
Tipo de recurso: tesis de maestría
Fecha de publicación:2023
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/402428
Acceso en línea:https://hdl.handle.net/2117/402428
Access Level:acceso abierto
Palabra clave:Internet of things
Wireless communication systems
Non-Terrestrial Networks (NTN)
Narrow-band Internet of Things (NB-IoT)
3rd Generation Partnership Project (3GPP)
Random Access (RA)
Redes no Terrestres (NTN)
Internet de las cosas de banda estrecha (NB-IoT)
Acceso Aleatorio (RA)
Internet de les coses
Comunicació sense fil, Sistemes de
Descripción
Sumario:Narrow band Internet of Things (NB-IoT) is a technology that has been growing in recent years and will continue to play an important role in fifth (5G) and sixth (6G) generations of mobile communications in upcoming years. NB-IoT covers a big part of the communication market segment with several examples including monitoring of smart cities, agriculture, cattle and forest or a variety of industrial applications. Some of these scenarios are remote places where there is not an accessible terrestrial network and there is also not a great demand of service to deploy a new one. One solution to address this issue is the use of Non-Terrestrial Networks (NTN) which would guarantee satellite connectivity to these remote areas. On this project, a MATLAB code has been developed to simulate a satellite scenario where several NB-IoT devices will try to access the satellite using a Random Access (RA) procedure. With the help of the simulations, it has been determined which parameters of the RA are the most critical to the system capacity. Four methods are proposed which can help to equalize the capacity across the NTN cell to guarantee fairness for all User Equipment (UEs).