How to Choose the Relevant MAC Protocol for Wireless Smart Parking Urban Networks?

TL;DR

This paper evaluates how different MAC protocols perform in wireless smart parking networks, emphasizing the importance of adaptive protocol selection based on traffic models and network configuration for optimal performance.

Contribution

It analyzes traffic models from real data and compares four MAC protocols, highlighting the impact of network parameters on delay and performance in smart parking systems.

Findings

Packet interarrival time becomes less heavy-tailed when collecting sensor groups.

Choosing the right MAC protocol depends on network configuration and traffic conditions.

Information delay is influenced by traffic and MAC parameters.

Abstract

Parking sensor network is rapidly deploying around the world and is regarded as one of the first implemented urban services in smart cities. To provide the best network performance, the MAC protocol shall be adaptive enough in order to satisfy the traffic intensity and variation of parking sensors. In this paper, we study the heavy-tailed parking and vacant time models from SmartSantander, and then we apply the traffic model in the simulation with four different kinds of MAC protocols, that is, contention-based, schedule-based and two hybrid versions of them. The result shows that the packet interarrival time is no longer heavy-tailed while collecting a group of parking sensors, and then choosing an appropriate MAC protocol highly depends on the network configuration. Also, the information delay is bounded by traffic and MAC parameters which are important criteria while the timely message is required.