Reliability Analysis of Slotted Aloha with Capture for an OWC-based IoT system

In this article, we consider a random access scheme for an indoor Internet of Things (IoT) framework that uses optical wireless communication (OWC). We focus on a Slotted ALOHA (SA)-based solution where a number of OWC IoT users contend to send data to a central OWC receiver. In any given slot, and...

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Bibliographic Details
Main Authors: Petkovic, Milica, Devaja, Tijana, Vukobratovic, Dejan, Escribano, Francisco J., Stefanovic, Cedomir
Format: Conference Proceeding
Language:English
Subjects:
Interference
Internet of Things
Probability
Reliability
Throughput
Uplink
Wireless communication
Online Access:Request full text
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Summary:In this article, we consider a random access scheme for an indoor Internet of Things (IoT) framework that uses optical wireless communication (OWC). We focus on a Slotted ALOHA (SA)-based solution where a number of OWC IoT users contend to send data to a central OWC receiver. In any given slot, and for a randomly selected active user, we consider the reliability of decoding the user's data packet at the receiver. This is done by deriving the signal-to-noise-and-interference-ratio (SINR) statistics from a randomly chosen user and evaluating the probability that the user's SINR is below a given threshold. By placing our analysis in the context of an indoor OWC IoT uplink setup, and employing the standard OWC channel model, we investigate the trade-offs between the reliability and the OWC system parameters such as the cell area or the transmitter's semiangle. We obtain valuable insights into the design of an SA-based random access solution for a typical indoor OWC cell.
ISSN:2154-0225
DOI:10.1109/ISWCS49558.2021.9562172