Abstract
This paper proposes a modified architecture of the Long-Term Evolution (LTE) mobile network to provide services for the Internet of Things (IoT). This is achieved by allocating a narrow bandwidth and transferring the scheduling functions from the eNodeB base station to an NB-IoT controller. A method for allocating uplink and downlink resources of the LTE/NB-IoT hybrid technology is applied to ensure the Quality of Service (QoS) from end-to-end. This method considers scheduling traffic/resources on the NB-IoT controller, which allows eNodeB planning to remain unchanged. This paper also proposes a prioritization approach within the IoT traffic to provide End-to-End (E2E) QoS in the integrated LTE/NB-IoT network. Further, we develop “smart queue” management algorithms for the IoT traffic prioritization. To demonstrate the feasibility of our approach, we performed a number of experiments using simulations. We concluded that our proposed approach ensures high end-to-end QoS of the real-time traffic by reducing the average end-to-end transmission delay.
Highlights
Internet of Things along with Big Data, virtualization and fifth-generation mobile networks (5G)make one of the most promising areas of today’s development technologies [1]
We form of discrete events events simulator simulator and developed our java-based simulator for Long-Term Evolution (LTE)/Nb-Internet of Things (IoT)
We modified the structure of Narrowband IoT (NB-IoT) frame, where a logical data channel is allocated to reduce the delay and communication of the NB-IoT controller
Summary
Internet of Things along with Big Data, virtualization and fifth-generation mobile networks (5G). Make one of the most promising areas of today’s development technologies [1]. 50 applications’ areas; to name a few, this includes intelligent sensors (for electricity, gas, water), facility management, home and commercial real-estate security and fire alarm systems, personal electronic health sensors, human, animal or object tracking systems, smart city infrastructure (e.g., street lamps or trash canisters, smart home and connected industrial tools). With developments of the Internet of Things, the number of connections to mobile networks is increasing steadily. Sensors 2020, 20, 2324 connected to the internet in the world will be around 28 billion. In the years to come, the number of the intermachine connections, i.e., Machine-to-Machine (M2M) will grow by 25% per year.
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