Method for controlling random access for the efficient sensing of the cooperative spectrum in a cognitive radio-based frequency resource sharing system
US9077446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2011 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Nov 15, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0816
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An embodiment of the present invention relates to a method for performing spectrum sensing to detect a signal for a terminal of a primary user in each sensing node. The method for performing sensing may comprise the steps of: performing, by the sensing node, spectrum sensing to detect a signal for a terminal of a primary user; computing, by the sensing node, a local test statistic on the basis of the result of the spectrum sensing; calculating, by the sensing node, the transmission probability on the basis of the computed local test statistic; and transmitting, by the sensing node, sensing information to a convergence center on the basis of the calculated transmission probability. In this case, the convergence center can determine whether the signal for a primary user exists on the basis of the transmitted sensing information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.