The Cicada Attack: Degradation and Denial of Service in IR Ranging
The authors explain that an interferer with malicious intentions can significantly degrade the performance of Impulse-Radio (IR) ranging. The cicada attack they have developed can decrease the distance (degradation of service) measured by ranging algorithms designed to cope with weak NLOS conditions; it can also jam communication (denial of service). The attack is easy to mount and can be effective even against receivers designed to cope with benign multi-user interference. They also sketch possible countermeasures. A distinguishing feature of IR-UWB is the ability to perform high-precision ranging in multipath environments and/or under interference. This makes IR-UWB an ideal candidate for implementing services such as indoor localization, tracking, or physical access control.