Date Added: Sep 2009
In this paper, the authors study tactical covert timing networks with dynamic spectrum access capability amidst adversaries. They present a two-tier game framework to model the attack-defense scenario. There are very few studies available in the literature on covert timing channels with multiple parallel transmissions. This paper presents a new paradigm combining the time diversity provided by covert timing channels and frequency diversity provided by dynamic spectrum switching, to combat jamming. The dynamic sensing of different spectrum bands and subsequent jamming by the attacker, and the camouflaging defense by the covert network are modeled as a two-tier game.