Abstract
The Internet of Things (IoT) is one of the promising paradigms that enable massive machines and devices to communicate with each other in future communication networks to promote a high level of awareness about our world and improve our daily life. IoT devices (IoTDs) communicate with an IoT base station (IoTBS) or IoT gateway (IoTG) by sharing the resources of other cellular users (CUEs). Due to the leakage of the spectral efficiency, interference exists among IoTG and base station (BS) due to CUEs and IoTDs. In this paper, a new framework is proposed called the interference control model. This proposed model aims to control the interference among IoTG and BS and is based on using the Lagrange optimization technique to reduce interference and maximize the energy efficiency and reliability of the IoT and cellular networks in fifth-generation (5G) systems. First, we formulate the multi-objective optimization problem to achieve the objective of the proposed model. Then, based on the optimization strategy, we derive the closed-form expressions of key quality-of-service (QoS) performance such as system reliability, throughput, and energy efficiency. Finally, the proposed algorithm has been evaluated and examined through different assumptions and several simulation scenarios. The obtained results validate the effectiveness and the accuracy of our proposed idea and also indicate significant improvement in the network performance of IoT and cellular networks.
Highlights
With the rapid development of the Internet of Things (IoT), where all the physical and smart things such as machines, vehicles, and devices are connected through wireless networks to exchange information about themselves and their surroundings, it is a challenge to fulfil user requirements with the required system performance
We investigate the effect of the interference occurring due to the number of transmitting IoT devices (IoTDs) on base stations (BSs) and the number of cellular users (CUEs) on the IoT gateway (IoTG) and find an adequate solution to decrease interference using an optimization strategy to enhance the IoT and cellular network performance in terms of reliability and efficiency under different environmental conditions
The performance of the proposed approach through MATLAB simulation is examined in terms of reliability, system outage probability, energy efficiency, and overall system throughput and is compared with previous related work [15,18]
Summary
With the rapid development of the Internet of Things (IoT), where all the physical and smart things such as machines, vehicles, and devices are connected through wireless networks to exchange information about themselves and their surroundings, it is a challenge to fulfil user requirements with the required system performance. We investigate the effect of the interference occurring due to the number of transmitting IoT devices (IoTDs) on base stations (BSs) and the number of cellular users (CUEs) on the IoT gateway (IoTG) and find an adequate solution to decrease interference using an optimization strategy to enhance the IoT and cellular network performance in terms of reliability and efficiency under different environmental conditions. These findings are used to identify, based on different constraints and requirements, the suitable and acceptable distance between CUE and IoTG and IoTD and BS that can decrease interference and optimize system performance for the whole network in a changing environment.
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