To Gain Insight Into Spectrum Sensing Techniques In Cognitive Radio.

To Gain Insight Into Spectrum Sensing Techniques In Cognitive Radio.
Author(s):
Ms Sonia, Mrs. Amandeep Kaur
Keywords:
Primary User, Secondary User, Spectrum Sensing, Signal Processing Techniques, fusion control, energy detector.
Abstract
The need for a flexible and robust wireless communication is becoming more important in recent times. The future of wireless networks is thought of as a union of mobile communication systems and internet technologies to offer a wide variety of services to the users which has put a lot of constraints on the available radio spectrum which is limited and precious. In fixed spectrum assignments there are many frequencies that are not being properly used. So cognitive radio helps us to use these unused frequency bands which are also called as “White Spaces”. This is a unique approach to improve utilization of radio electromagnetic spectrum. In establishing the cognitive radio there are 4 important methods. In this paper we are going to discuss about the Cognitive radio characteristics and benefits. The most important method to implement cognitive radio i.e., “spectrum sensing” is discussed in detail. Various spectrum sensing techniques that are involved in spectrum sensing along with their merits and demerits.
Article Details
Unique Paper ID: 142533 Publication Volume & Issue: Volume 2, Issue 3 Page(s): 57 - 61
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