Poster Abstract: Jamming WLAN Data Frames and Acknowledgments using Commodity Hardware
Florian Klingler, Falko Dressler · 2019
Actively interfering wireless communication (also called jamming) to prevent a potential receiver to decode particular frames has recently attracted much interest in the research community. Reactive jammers extend this concept to allow on-demand selection whether to jam specific frames based on information included in the headers of those particular frames. Recently, several approaches were presented to allow reactive jamming by using commodity hardware, however, with certain limitations, e.g., a minimum necessary frame length. We go one step beyond and, to the best of our knowledge, present a first study on the feasibility of jamming even IEEE 802.11 control frames, such as unicast Acknowledgments (ACKs) following a reactive jamming approach. Our system has been implemented on commodity hardware. We further present analytical timing insights into the possibility of jamming control frames as well as regular data frames.