Performance Analysis of IEEE 802.15.4 real-time Enhancement

The IEEE 802.15.4e amendment provides different modalities over which Wireless Sensor Networks (WSNs) can be deployed, even with strict requirements in terms of latency and determinism; still, there seems to be room for improvement. This paper proposes two enhancements for IEEE 802.15.4e LLDN mode: (1) allowing a reduced and more predictable configuration time and (2) focusing on the worst-case latency for high-priority traffic. A comparison with standard LLDN is then performed and evaluated, either through Monte Carlo simulations or analytically.