Spectrum allocation for cognitive radio use
Emmanouil Panaousis, Christos Politis · Research Repository (Kingston University London) · 2009
One of the most regulated and scarce natural resources of all time is radio spectrum. Access to it has been chronically bounded ever since RF transmissions were first regulated in the early 20th century. There are several efforts to reduce interference with the most important and effective the allocation of spectrum to specific technologies. Additionally, new technologies that use spectrum more efficiently and more cooperatively, analogue switch-off and spectrum refarming, may help to overcome the spectrum shortage. These technologies come with great advances in the field of wireless communications and networking. In this paper we discuss the situation of the current spectrum allocation. Additionally, we explain the reasons of the growth need for utilisation of the license-exempt (LE) spectrum bands. The vast allocations of the latter could be enforced by using the technology of cognitive radios (CRs).