The Finest Superframe Interval and GTS Provision Scheme (FSGPS) for Time-Sensitive IEEE 802.15.4 Applications

Abstract

The IEEE 802.15.4 medium access control (MAC) is a widely used protocol for low rate wireless personal area network because of its vital features, such as low power consumption, low data rate, short-range and real-time communications. Its unique guaranteed time slot (GTS) mechanism makes it an appropriate communication protocol in healthcare monitoring and other critical applications. Nevertheless, this GTS mechanism has few a constraints. One of the key limitations is the scarcity of GTS slots and the static nature of the GTS allocation mechanism. In this paper, we propose a scheme called the Finest Superframe interval and GTS provision scheme (FSGPS) that aims to reduce the limitations of IEEE 802.15.4 MAC to make it more suitable for time-sensitive services. To address the impacts of the quasi-static nature of WBAN, we in this paper consider temporal path loss variation in our simulations that accounts for real-time variation associated with the nodes. Through extensive simulations, we show that our proposed FSGPS outperforms IEEE 802.15.4 MAC in respect of several key performance metrics.

Decision Model of Wireless Communication Scheme Evaluation via Interval Number

“…It is necessary to use the system analysis method to analyze the functions and relationships of each system structure module, the goals and standards to be achieved by the system, and the environment that is interdependent with the system. e effectiveness evaluation index system is established based on the comprehensive collection of the relevant information of the system [21]. Generally, there are many factors that affect the evaluation results of the evaluation system, among which no one can be reflected in the effectiveness evaluation.…”