Evaluating the performance of eMTC and NB-IoT for smart city applications

Mohieddine El Soussi, Pouria Zand, Frank Pasveer, Guido Dolmans

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

48 Citations (Scopus)

Abstract

Low power wide area network (LPWAN) is a wireless telecommunication network that is designed for interconnecting devices with low bitrate focusing on long range and power efficiency. In this paper, we study two recent technologies built from existing Long-Term Evolution (LTE) functionalities: Enhanced machine type communications (eMTC) and Narrow band internet of things (NB-IoT). These technologies are designed to coexist with existing LTE infrastructure, spectrum, and devices. We compare the performance of both systems in terms of energy consumption, latency, and scalability. We introduce a model for calculating the energy consumption and study the effect of clock drift and propose a method to overcome it. We also propose a model for analytically evaluating the latency and the maximum number of devices in a network. Furthermore, we implement the main functionalities of both technologies and simulate the end-to-end latency and the maximum number of devices in a discrete-event network simulator NS-3. Numerical results show that 8 years battery life time can be achieved by both technologies in a poor coverage scenario and that depending on the coverage conditions and data length, one technology consumes less energy than the other. The results also show that eMTC can serve more devices in a network than NB-IoT, while providing a latency that is 10 times lower.

Original languageEnglish
Title of host publication2018 IEEE International Conference on Communications, ICC 2018 - Proceedings
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages7
ISBN (Electronic)978-1-5386-3180-5
ISBN (Print)978-1-5386-3181-2
DOIs
Publication statusPublished - 27 Jul 2018
Event2018 IEEE International Conference on Communications (ICC 2018) - Kansas City, MO, USA, Kansas City, United States
Duration: 20 May 201824 May 2018

Conference

Conference2018 IEEE International Conference on Communications (ICC 2018)
Country/TerritoryUnited States
CityKansas City
Period20/05/1824/05/18

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