# A Low-Complexity Algorithm for NB-IoT Networks

### Salem Alemaishat

#### Abstract

The NB-IoT is a brand-new narrowband IoT technology based on cellular networks. It is an international standard defined by the 3GPP organization. It can be widely deployed worldwide. It focuses on low-power wide area networks and operates based on licensed spectrum. It can be directly deployed in The LTE network has low deployment costs and smooth upgrade capabilities. One of the most influencing factor in NB-IoT networks is time delay, which affects the system performance. Therefore, this paper proposes an efficient algorithm to estimate such factor based on the idea of ICI cancellation method to gradually mitigate the interference between signals in each cell. The proposed algorithm deploys time-frequency cross-correlation overlapping in each iteration based on the conventional correlation method to further enhance the time delay estimation accuracy. Furthermore, based on the noise threshold, a first arrival path algorithm is proposed to eradicate the multipath fading. Simulation results show that the proposed algorithm can effectively improve the time delay as compared with existing algorithms.

Download#### Paper Citation

#### in Harvard Style

Alemaishat S. (2021). **A Low-Complexity Algorithm for NB-IoT Networks**. In *Proceedings of the 6th International Conference on Internet of Things, Big Data and Security - Volume 1: IoTBDS,* ISBN 978-989-758-504-3, pages 205-214. DOI: 10.5220/0010439802050214

#### in Bibtex Style

@conference{iotbds21,

author={Salem Alemaishat},

title={A Low-Complexity Algorithm for NB-IoT Networks},

booktitle={Proceedings of the 6th International Conference on Internet of Things, Big Data and Security - Volume 1: IoTBDS,},

year={2021},

pages={205-214},

publisher={SciTePress},

organization={INSTICC},

doi={10.5220/0010439802050214},

isbn={978-989-758-504-3},

}

#### in EndNote Style

TY - CONF

JO - Proceedings of the 6th International Conference on Internet of Things, Big Data and Security - Volume 1: IoTBDS,

TI - A Low-Complexity Algorithm for NB-IoT Networks

SN - 978-989-758-504-3

AU - Alemaishat S.

PY - 2021

SP - 205

EP - 214

DO - 10.5220/0010439802050214