Throughput and Delay Performance of Slotted Aloha in SmartBANs under Saturation Conditions

TL;DR

This paper models and evaluates the throughput and delay performance of the slotted Aloha protocol in SmartBANs under saturation, using a DTMC approach validated by simulations.

Contribution

It introduces a detailed DTMC model for the protocol's performance analysis and demonstrates its accuracy through simulation validation.

Findings

The model accurately predicts saturation throughput and delay.

Simulation results closely match theoretical predictions.

The model can be used for protocol optimization.

Abstract

This letter evaluates the performance of the slotted Aloha protocol defined by the European Telecommunication Standard Institute (ETSI) SmartBAN specification, under saturation conditions. For this purpose, we develop a two-dimensional Discrete Time Markov Chain (DTMC) to model the operational details of the protocol and assess its performance in terms of saturation throughput and average end-to-end delay. The accuracy of the proposed model is validated by means of simulation which reveals a very good match among theoretical and simulation results. The model can be used for protocol performance prediction and optimization purposes.