Designing a Hybrid DSA System
George F. Elmasry · 2020
This chapter covers the dynamic spectrum access (DSA) design approaches that need to be thought of in cognitive networks, taking into consideration a variety of reasons to include the optimization of control traffic volume, the speed of making DSA decisions, the interdependency between DSA decisions and other cognitive networking processes, and the need for the different hierarchies of DSA decisions to work in harmony. To make the best case for using a hybrid DSA design, it uses examples from military communications systems where spectrum access needs to be more dynamic and the networks are heterogeneous and hierarchical. The case of designing DSA solutions for a mix of heterogeneous hierarchical MANETs is the best example that can be used to illustrate the reasons for using a hybrid DSA design. The chapter considers the case of sensing the presence of a signal where the local decision fusion engine was able to collect a knowledge repository.