WiBWi: Encoding-based Bidirectional Physical-Layer Cross-Technology Communication between BLE and WiFi

Yuanhe Shu, Jingwei Wang, L. Kong, Jiadi Yu, Guisong Yang, Yueping Cai, Zhen Wang, M. K. Khan
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引用次数: 1

Abstract

The booming of mobile technologies and Internet of Things (IoTs) have facilitated the explosion of wireless devices and brought convenience to people's daily lives. Coming with the explosive growth of wireless devices, incompatibility of heterogeneous wireless technologies hindered the growing demands for everything connected. And spectrum sharing among heterogeneous wireless technologies has led to severe Cross-Technology Interference (CTI), which is a vital obstacle for network reliability and spectrum utilization. Researches in recent years have shown that Cross-Technology Communication (CTC) turns out to be a promising solution with broad perspective for the coexistence of heterogeneous wireless technologies. However, due to the physical layer incompatibility of WiFi and Bluetooth Low Energy (BLE), the researches about CTC between these two most wildly used wireless technologies are limited by now. In this paper, we propose WiBWi, a payload encoding-based bidirectional CTC scheme between BLE and WiFi, which can achieve near-optimal throughput and powerful robustness. For uplink, i.e., BLE to WiFi communication, WiBWi leverages a novel extended WiFi preamble detection rule and probabilistic inference based encode mapping to achieve fast and reliable communication. For downlink, i.e., WiFi to BLE communication, WiBWi introduces an encoding mapping scheme in the sight of BLE receiver with little modification to accomplish high throughput and robustness. Extensive evaluation shows that WiBWi can offer near-optimal throughput (near the maximum throughput of BLE) and extremely low bit error rate (less than 1%).
WiBWi: BLE与WiFi之间基于编码的双向物理层跨技术通信
移动技术和物联网的蓬勃发展,推动了无线设备的爆炸式增长,为人们的日常生活带来了便利。随着无线设备的爆炸式增长,异构无线技术的不兼容性阻碍了人们对万物互联的需求。而异构无线技术之间的频谱共享导致了严重的跨技术干扰(CTI),这是影响网络可靠性和频谱利用率的重要障碍。近年来的研究表明,跨技术通信(CTC)是一种很有前途的解决方案,为异构无线技术共存提供了广阔的前景。然而,由于WiFi和低功耗蓝牙(Bluetooth Low Energy, BLE)的物理层不兼容,目前对这两种应用最广泛的无线技术之间的CTC的研究还很有限。在本文中,我们提出了WiBWi,一种介于BLE和WiFi之间的基于有效载荷编码的双向CTC方案,可以实现近乎最优的吞吐量和强大的鲁棒性。对于上行链路,即BLE到WiFi通信,WiBWi利用了一种新颖的扩展WiFi前导检测规则和基于概率推理的编码映射,实现了快速可靠的通信。对于下行链路,即WiFi到BLE通信,WiBWi在BLE接收器的视线中引入了一种编码映射方案,修改很少,实现了高吞吐量和鲁棒性。广泛的评估表明,WiBWi可以提供近乎最佳的吞吐量(接近BLE的最大吞吐量)和极低的误码率(小于1%)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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