Unveiling SparkLink Low Energy: A Comparative Measurement Study
Boya Liu, Zhenyu Ren, Yanbo Zhang, Mo Li, Jiaxin Liang, Bin He, Jie Li, Hao Wu, Jingbin Zhou · ACM Transactions on Internet of Things · 2025
SparkLink Low Energy (SLE) is a new short-range wireless communication technology designed to satisfy the increasing demands of future short-range scenarios. While SLE promises fundamental improvements over traditional Bluetooth, a thorough real-world evaluation is lacking. This article provides a detailed evaluation framework that includes access layer benchmarking and end-to-end application validation, presenting the first comprehensive comparison between SLE and traditional Bluetooth technologies. Benchmarking reveals SLE offers a 4× increase in data rate, a 3.84× reduction in latency, and a 10 dB improvement in sensitivity. To evaluate SLE against actual application QoS requirements, we implement an end-to-end evaluation system for validation across three practical application scenarios. Based on experimentation and parameter analysis, we propose a design for QoS-centered optimization. These results underscore SLE’s fundamental advancements over Bluetooth and its potential in real-world applications, offering insights for further optimization of this communication technology.