Interference Resistant Waveform for Cognitive Radio MANET

The problem of waveforms constructing for mobile ad hoc networks with cognitive radio (MANET-CR) is discussed. This is one of the main questions limiting widely use this very attractive technique, that not need deployment of expensive communication infrastructure. The paper presents the structure of CR nodes with complex management procedures, using advanced Dynamic Spectrum Management together with the concept of policy-based radio. Here, the basic policy is to avoid interference generated by other users or interfering devices. The experiments were performed in a real environment, using the elaborated testbed. The results show that the use of sensing and cognitive management mechanisms enables more efficient use of the spectrum while maintaining reasonable overhead values related to the management procedures.