Spectrum Sensing in Cognitive Radio Networks using Modified Energy Detector |
Author(s): |
| Kazi.Md.Nizamuddin , PDA COLLEGE OF ENGINEERING,GULBARGA.; Dr.Siddarama R.Patil, PDA COLLEGE OF ENGINEERING,GULBARGA. |
Keywords: |
| Cognitive Radio (CR), Spectrum Hole, Primary user (PU), Spectrum sensing, Improved Energy detector, Multiple antennas |
Abstract |
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Cognitive Radio is the wireless technology which allows the effective spectrum utilization among unlicensed users. Basically spectrum resource management is a tough task in present world because of the allocated spectrum to a primary user gets unutilized. In order to avoid the spectrum band unutilization among the users we use cognitive radio technology. The proposed methodology consists of Improved Energy Detector which is used in sensing of spectrum hole. The cognitive radio users utilize the improved energy detector statistics for making a binary decision on presence/absence of primary user signal in the licensed spectrum band. By using the multiple antennas at each cognitive radio, the probability of spectrum utilization is maximized and the probability of detection of primary user signal is high under low SNR. |
Other Details |
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Paper ID: IJSRDV2I6186 Published in: Volume : 2, Issue : 6 Publication Date: 01/09/2014 Page(s): 299-302 |
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