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Conference papers

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

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.
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Contributor : Chung Shue Chen Connect in order to contact the contributor
Submitted on : Saturday, April 17, 2021 - 2:17:07 AM
Last modification on : Saturday, December 4, 2021 - 3:58:11 AM


Downlink Connectivity in NB-Io...
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  • HAL Id : hal-03200918, version 1


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⟩



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