Implementation of the Energy Detector by Software Defined Radio for Spectrum Detection

Monica Alcaraz; Fatima Moumtadi

The spectrum detection stage in cognitive radio presents major challenges, since the devices used require precision and a high coordination to exchange data between the nodes that form a network. This article uses the energy detection technique, which consists of measuring the power of a signal and comparing it with a threshold to detect whether or not a primary user exists, in addition to monitoring the transmission time. The project is based on The Software Defined Radio Technology (SDR); this technology allows implementing with a same hardware a lot of signals with different parameters avoiding great costs in equipment and real material. The results presented confirm the validation of the method using a simulated test signal in the GNU Radio environment, the power of the signal can be mathematically calculated and then verify if the designed threshold is capable of detecting the presence or absence of a primary signal

Select Volume / Issues:

• Volume 8,Issue 5, Sept. 2017

Year:

2017

Type of Publication:

Article

Keywords:

Energy Detection; Monitoring; Primary User; Software Defined Radio; Spectrum Detection; Threshold

Journal:

IJECCE

Volume:

8

Number:

5

Pages:

281-284

Month:

September

ISSN:

2249-071X