Proximity-based wireless access control through considerate jamming

As diverse types of wireless devices emerge, it becomes difficult to apply the existing wireless security measures to them without efforts. Those devices lack conventional user interfaces or they are resource-constrained to process the security protocols. Meanwhile, many of them are used within a geographical boundary to access to the basestation. This motivates us to develop a complementary non-cryptographic technique to secure communication of such wireless devices. In this paper, we present considerate jamming, a novel wireless access control mechanism allowing access to only the wireless devices within a given boundary. The proposed mechanism does not require any modification in the wireless clients, but instead it is implemented with separate jamming devices and the modified basestation. We provide the theoretical model with system parameters and validate it through simulation.