Cognitive Radio Innovation Centre

Cognitive Radio Innovation Centre Cognitive radio is viewed as a novel approach for improving the utilization of a precious natural resource: the radio electromagnetic spectrum. They are :
1.

Efficient usage of the limited natural resources is one of society’s greatest challenges. Just like petroleum and coal, the natural frequency spectrum is limited and needed to be used more efficiently in order not to use up all. It is apparent that current static frequency allocation schemes cannot accommodate demands of the rapidly increasing number of higher data rate devices. Therefore, dynamic

usage of the spectrum must be distinguished from the static usage to increase the availability of frequency spectrum. For this purpose, cognitive radio is proposed as a new technology that provides optimum satisfaction of user requirements like effective spectrum usage. Inconsistent transmission scheme of primary users with not fully occupied licensed bands in frequency, time and space led to a more sophisticated and structured manner - cognitive radio that is aware of its environmental, internal state, and location, and autonomously adjusts its operations to achieve designed objectives. With another way of saying, cognitive radio first senses its spectral environment over a wide frequency band, then adapts the parameters to maximize spectrum efficiency while co-existing with legacy wireless networks. This project only focuses on the spectrum sensing in cognitive radio. Several Spectrum Sensing Methods proposed in the literature are theoretically analysed and interpreted in the sense of advantages and drawbacks. There are generally five signal detection methods. Matched Filtering
2. Energy Detection
3. Cyclostationary Feature Detection
4. Other Methods:
-Higher Order Statistics
-Waveform based sensing

Cognitive radio is viewed as a novel approach for improving the utilization of a precious natural resource: the radio el...
05/05/2014

Cognitive radio is viewed as a novel approach for improving the utilization of a precious natural resource: the radio electromagnetic spectrum.

Welcome to the future !
Welcome to the Cognitive Radio Innovation Centre !

A cognitive radio is an intelligent radio that can be programmed and configured dynamically.Its transceiver is designed ...
05/05/2014

A cognitive radio is an intelligent radio that can be programmed and configured dynamically.

Its transceiver is designed to use the best wireless channels in its vicinity. Such a radio automatically detects available channels in wireless spectrum, then accordingly changes its transmission or reception parameters to allow more concurrent wireless communications in a given spectrum band at one location.

This process is a form of dynamic spectrum management.

Know More: http://en.wikipedia.org/wiki/Cognitive_radio

Spectrum Sensing :In order to avoid interference the spectrum holes need to be sensed.Spectrum sensing techniques are di...
18/03/2014

Spectrum Sensing :
In order to avoid interference the spectrum holes need to be sensed.

Spectrum sensing techniques are divided into the following categories
– transmitter detection
– cooperative detection

Spectrum Management:
Needed to capture the best available spectrum to meet user communication requirements
Cognitive radios should decide on the best spectrum band to meet the QoS requirements
Over all available spectrum bands management functions classified as
– spectrum analysis
– spectrum detection

Spectrum Mobility:
The process where a cognitive radio user exchanges its frequency of operation.
-target to use the spectrum in a dynamic manner by allowing the radio terminals to operate in the best available frequency band.
-seamless communication requirements during the transition to better spectrum must be maintained.

Spectrum Sharing:
providing the fair spectrum scheduling method
sharing is a major challenge in open spectrum usage
corresponds to MAC problems in existing systems

Thank U all for reaching the First mile stone of 50 Likes. Coming soon-More about Cognitive Radio in Cognitive Radio Inn...
11/03/2014

Thank U all for reaching the First mile stone of 50 Likes.
Coming soon-More about Cognitive Radio in Cognitive Radio Innovation Center

10/03/2014
Mobile Frequencies are getting crowded!Many other Radio Frequencies are Not Being Utilized!Gone are Days of Static Alloc...
10/03/2014

Mobile Frequencies are getting crowded!
Many other Radio Frequencies are Not Being Utilized!
Gone are Days of Static Allocation of Band Width.

Cognitive Radio - The Perfect Solution.

Welcome To The Future.

Cognitive Radio Innovation Center

Address

5-3-357, R. P. Road
Secunderabad
500003

Telephone

+918125845215

Website

Alerts

Be the first to know and let us send you an email when Cognitive Radio Innovation Centre posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category