Performance of distributed channel selection for cognitive MANET in the presence of intentional jamming

Abstract

Currently, a number of different radio systems which are set up and work during a mission is growing rapidly. A traditional way to ensure coexistence of the radio systems and minimize interferences is a frequency allocation plan (pre-assigned frequencies) which is believed to be inefficient, whereas Dynamic Spectrum Access (DSA) is thought to introduce a more efficient spectrum usage. By using policy a Cognitive Radio (CR) has some autonomy to make decisions about the spectrum usage. We use sensing policies to optimize CR work against different types of frequency hopping jammers. We focus on operational usage of the policies implemented in CR, and operational assessment of services used in different types of missions, by definition of the mission service utility function. Furthermore, we compare simulation results and practical network implementation during real missions and military exercises. In this paper we focused on the assessment of influence of fast hopping signals on operational capabilities of the CR network and its ability to meet the information exchange requirement, as it is a part of military radio system, and therefore must ensure command services with required quality.