Versatile Analytical Model for Delay and Energy Evaluation in WPANs: A Case Study for IEEE 802.15.4 CSMA-CA

摘要

This paper proposes a versatile analytical model to predict the medium access control (MAC) layer performance metrics (throughput, average MAC service time, successful transmission probability) as well as the energy consumption of wireless personal area networks (WPANs) under all possible transmission modes (unacknowledged, limited and unlimited acknowledged modes) with both saturated and unsaturated traffic patterns. This rigorous analytical approach produces straightforward equations that are used to predict the operational parameters required to optimise the throughput of networks. This paper uses the state-of-the-art IEEE 802.15.4 CSMA-CA protocol to demonstrate the use of the modelling approach. The numerical results obtained from the analytical model are verified through comparison with simulation.