Analysis of Downlink Connectivity in NB-IoT Networks Employing NOMA with Imperfect SIC - Inria - Institut national de recherche en sciences et technologies du numérique
Conference Papers Year : 2021

Analysis of Downlink Connectivity in NB-IoT Networks Employing NOMA with Imperfect SIC

Shashwat Mishra
Lou Salaun
K Giridhar
  • Function : Author

Abstract

We study the problem of maximizing the number of served devices in a non-orthogonal multiple access (NOMA) based Narrowband Internet of Things (NB-IoT) network for supporting massive connectivity in the downlink. We analyze this problem under practical system limitations of imperfect successive interference cancellation (SIC) at the receiver along with data rate, power and bandwidth constraints. We propose a strategy for joint device and power allocation through an iterative solution for a system of linear equations on each sub-carrier that maximizes the number of connected devices. We evaluate the performance of the proposed solution over a wide range of service scenarios through extensive computer simulations and demonstrate the sensitivity of connectivity in power domain NOMA based NB-IoT systems to the residual interference resulting from imperfect SIC.
Fichier principal
Vignette du fichier
Downlink Connectivity in NB-IoT NOMA with Imperfect SIC.pdf (190.33 Ko) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-03200918 , version 1 (17-04-2021)

Identifiers

  • HAL Id : hal-03200918 , version 1

Cite

Shashwat Mishra, Lou Salaun, Chung Shue Chen, K Giridhar. Analysis of Downlink Connectivity in NB-IoT Networks Employing NOMA with Imperfect SIC. 2021 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit): 6G Enabling Technologies, Jun 2021, Porto, France. ⟨hal-03200918⟩
42 View
154 Download

Share

More