分类：无线安全研究    下载：0    浏览：92    时间：2026-07-29

Hacking Bluetooth enabled mobile phones and beyond – Full Disclosure Adam Laurie Marcel Holtmann Martin Herfurt 21C3: The Usual Suspects

分类：设计开发    下载：0    浏览：1083    时间：2017-08-19

Abstract∗: Bluetooth is a personal wireless communication technology and is being applied in many scenarios. Current existing MAC (Medium Access Control) scheduling scheme only provides best-effort service for all master-slave connections. It is very challenging to provide QoS (Quality of Service) support for different connections due to the feature of Master Driven TDD (Time Division Duplex). This paper addresses the issue of how to enhance QoS support in a Bluetooth piconet. We propose an MAC scheduling algorithm which can provide different QoS for different connections based on priorities. Considering the feature of Master Driven TDD, we define token counters to estimate traffic of real-time slaves. To increase bandwidth utilization, a backoff mechanism is then presented for best-effort slaves to decrease the frequency of polling idle slaves. Simulation results demonstrate that our scheme achieves better performance over the existing schemes. Keywords: Bluetooth, Piconet, Master, Slave, QoS,MAC, Scheduling