Sliding window energy detection for spectrum sensing under low SNR conditions
US9897634B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2014 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Aug 29, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0808
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and devices for spectrum sensing using sliding window energy detection are provided. A sliding window energy detection test having a number of continuously-performed tests can be analyzed according to a desired cumulative false alarm rate to provide a corresponding, testing threshold. Based on the testing threshold and target signal to noise ratio, a testing window length is selected such that the sliding window energy detection is performed for a minimum expected discrete detection time. A sliding window energy detector can then obtain the selected testing window length and the corresponding, testing threshold for spectrum sensing. The sliding window energy detector includes a sampling unit, a detection probability analyzer, a testing statistic generator, a false alarm analyzer, a comparing unit, and a declaring unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.