Wavelet Based Spectrum Sensing Techniques in Cognitive Radio
نویسندگان
چکیده
منابع مشابه
Comparison Study on Wavelet based Spectrum Sensing in Cognitive Radio
The growing demand of wireless applications has put a lot of constraints on the usage of available radio spectrum which is limited and precious resource. However, a fixed spectrum assignment has lead to under utilisation of spectrum as a great portion of licensed spectrum is not effectively utilised. Cognitive radio is a promising technology which provides a novel way to improve utilisation eff...
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In this paper, we review some of the recent patents on spectrum sensing techniques for cognitive radio (CR) applications. The presented patents are categorized under: 1) spectrum sensing algorithms and architectures, 2) spectrum sensing and data communication and 3) cooperative spectrum sensing. The presented patents include special sensing algorithms that are based on the multi-resolution spec...
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Now a days, the available radio spectrum is divided between the licensed and unlicensed frequencies. But due to this, some frequency bands get occupied all the time and some are occupied for less time. This is leading to wastage of frequency spectrum. Again, in recent years, there has been huge growth in wireless communication devices and applications. To fulfill this demand of spectrum, we sho...
متن کاملWavelet and Energy Detection Based Spectrum Sensing Techniques in Cognitive Radio Technology
In wireless communication spectrum is the most important commodity and utilizing the spectrum is also one of the important issue. For the best and proper utilization of the spectrum this cognitive radio technology is very useful. The main issues in cognitive radio now a days is the spectrum sensing problem and it gained a new aspects and opportunistic in the concept of spectrum access. Various ...
متن کاملCognitive Radio Spectrum Sensing Techniques - a Survey
Wireless communication (WC), Radio environment (RF) emerges a cognitive radio scheme. It is an intelligent wireless communication system that has more awareness about surrounding environment; depending upon the environment it will give flexible communication as well as effective reuse of the unused available spectrum. Recent Research says 70% of the radio frequency spectrum is not used effectiv...
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ژورنال
عنوان ژورنال: Procedia Engineering
سال: 2012
ISSN: 1877-7058
DOI: 10.1016/j.proeng.2012.06.111