Combating BLE Weak Links by Combining PHY Layer Symbol Extension and Link Layer Coding

IF 9.2 2区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Transactions on Mobile Computing Pub Date : 2025-06-16 DOI:10.1109/TMC.2025.3579934

Renjie Li;Yeming Li;Jiamei Lv;Hailong Lin;Yi Gao;Wei Dong

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引用次数: 0

Abstract

Bluetooth Low Energy (BLE) technology supports various Internet-of-Things (IoT) applications. However, because of their limited transmission power and channel interference, their performance is deficient over weak links. Extending physical layer symbols or using error correction code to the link layer is effective somehow. Introducing excessive BLE bits to both respectively can also decrease the network throughput. To optimize the BLE technology performance, we propose CPL, a combining PHY and link layer optimization technology that adaptively allocates BLE bits to both the physical layer and link layer. Then we propose the Cross-Layer BLE Bits Dynamic Allocation Model that unifies the gain of BLE bits in different layers. Finally, we propose an Interference-Aware Controlled CFO Fine-Tuning Method that calibrates the model according to different interference patterns. We implement CPL on Commercial-Off-The-Shelf (COTS) BLE chips and SDR. The experiment results show that under various interference conditions, CPL achieves 50× and 32.16% throughput improvement over RSBLE and Symphony. CPL reduces energy consumption by 60.42% to 97.95% compared to RSBLE, and 11.04% to 25.15% compared to Symphony.

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结合物理层符号扩展和链路层编码对抗BLE弱链路

蓝牙低功耗（BLE）技术支持各种物联网（IoT）应用。然而，由于其传输功率有限和信道干扰，在薄弱环节中性能较差。在链路层扩展物理层符号或使用纠错码是有效的。在两者中分别引入过多的BLE位也会降低网络吞吐量。为了优化BLE技术的性能，我们提出了CPL，这是一种结合物理层和链路层的优化技术，可以自适应地将BLE位分配到物理层和链路层。在此基础上，提出了统一各层BLE位增益的跨层BLE位动态分配模型。最后，我们提出了一种干扰感知控制CFO微调方法，根据不同的干扰模式对模型进行校准。我们在商用现货（COTS） BLE芯片和SDR上实现CPL。实验结果表明，在各种干扰条件下，CPL的吞吐量比RSBLE和Symphony分别提高了50倍和32.16%。CPL与RSBLE相比能耗降低60.42%至97.95%，与Symphony相比能耗降低11.04%至25.15%。

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来源期刊

IEEE Transactions on Mobile Computing 工程技术-电信学

CiteScore

12.90

自引率

2.50%

发文量

403

审稿时长

6.6 months

期刊介绍： IEEE Transactions on Mobile Computing addresses key technical issues related to various aspects of mobile computing. This includes (a) architectures, (b) support services, (c) algorithm/protocol design and analysis, (d) mobile environments, (e) mobile communication systems, (f) applications, and (g) emerging technologies. Topics of interest span a wide range, covering aspects like mobile networks and hosts, mobility management, multimedia, operating system support, power management, online and mobile environments, security, scalability, reliability, and emerging technologies such as wearable computers, body area networks, and wireless sensor networks. The journal serves as a comprehensive platform for advancements in mobile computing research.