Speaker: Jun Luo, Nanyang Technological University

Time: 15:30—17:00 p.m., March 4, 2024, GMT+8

Venue: Room 1504, Science Building #1, yanyuan & Tencent Meeting ID: 656-451-396

Abstract: 

Given the increasing pervasiveness of Wi-Fi deployments and the awareness of Wi-Fi sensing capability, making sensing and communications both available on commodity Wi-Fi devices has become imperative. However, different from the well-studied ISAC (integrated sensing and communication) framework, transferring Wi-Fi toward ISAC faces two major challenges. On one hand, the focus is not designing (modulation) waveform but rather adapting what Wi-Fi communications already use towards sensing capability while maintaining communication quality. On the other hand, the security issue that was never considered under ISAC has to be seriously taken into account, simply because Wi-Fi's pervasive adoption.
In this talk, we first propose an evoluting path of making Wi-Fi ISAC-ready, without making any fundamental changes to existing Wi-Fi cards. Based on that, we also point out a potentially (easily mounted) attack that may exploit such ISAC Wi-Fi. Finally, we propose a security mechanism; it mimics what digital encryption does to digital messages, but it performs physical encryption on physical behaviors (e.g., hand gesture).

Source: School of Computer Science, PKU