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Narrowband Internet of Things (NB-IoT) and LTE Systems Co-Existence Analysis

  • Bowen Yang
  • , Lei Zhang
  • , Deli Qiao
  • , Guodong Zhao
  • , Muhammad Ali Imran
  • University of Glasgow
  • University of Electronic Science and Technology of China

Research output: Contribution to journalConference articlepeer-review

Abstract

In this paper, we establish a comprehensive uplink system model for in-band and guard-band Narrowband Internet of Things (NB-IoT) with arbitrary sample duration in the NB-IoT device. The mathematical expressions of received LTE and NB-IoT signals are derived. Moreover, the close-form interference power on the LTE signal from the adjacent NB-IoT signal is given analytically. The result shows that the sample duration of NB-IoT device has significant impact on its desired signal and on the interference to the LTE user equipment (UE). Numerical results show that the analytical expressions match the simulated ones perfectly, which verifies the effectiveness of proposed system model and derivations. The work in this paper provides a valid guidance for NB-IoT system deployment and co-existence analysis.

Original languageEnglish
Article number8647484
JournalProceedings - IEEE Global Communications Conference, GLOBECOM
DOIs
StatePublished - 2018
Event2018 IEEE Global Communications Conference, GLOBECOM 2018 - Abu Dhabi, United Arab Emirates
Duration: 9 Dec 201813 Dec 2018

Keywords

  • Narrowband Internet of Things (NB-IoT)
  • mixed numerology
  • multi-service co-existence
  • network slicing

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