| Exploiting polarization for spectrum awareness in cognitive satellite communications |
| English |
| Sharma, S. K. [Interdisciplinary Centre for Security, Reliability, and Trust, University of Luxembourg, Belgium] |
| Chatzinotas, Symeon  [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) >] |
| Ottersten, Björn [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) >] |
| 31-Oct-2014 |
| Exploiting polarization for spectrum awareness in cognitive satellite communications |
| IGI Global |
| 856-883 |
| Yes |
| [en] probability of detection ; sensing efficiency ; energy detection ; dual polarized antenna ; polarization states |
| [en] The continuously increasing demand of spectrum and current static spectrum allocation policies are rendering the available radio spectrum scarce. To address the problem of spectrum scarcity in the satellite paradigm, cognitive satellite communications has been considered as a promising technique. In addition to the existing spectrum sharing dimensions such as frequency, time, and space, polarization can be exploited as an additional degree of freedom in order to explore the spectral gaps in the underutilized licensed spectrum. In this context, this chapter firstly provides an overview of the existing works in polarization-based spectrum sharing. Secondly, it presents the theoretical analysis of energy detection technique for dual polarized Additive White Gaussian Noise and Rayleigh fading channels considering the spectral coexistence scenarios of dual and hybrid satellite systems. Thirdly, it provides the comparison of different combining techniques in terms of the sensing performance. Finally, it provides interesting future research directions in this domain. © 2015 by IGI Global. All rights reserved. |
| http://hdl.handle.net/10993/26381 |
| 10.4018/978-1-4666-6571-2.ch033 |
| 9781466665729; 1466665718; 9781466665712 |
