Abstract
The main aim is to exploit sparsity of the spectrum.This provides a more efficient use of the spectrum as well as reduce power consumption thereby enabling high priority communications to take precedence if needed. Varied devices will be able to detect other radios around them and work together to optimize the use of spectrum, allocate resources and more easily communicate to their peers.
Keywords
SPECTRUM I. INTRODUCTION Cognitive radios are aware of their surroundings and bandwidth availability and are able to