please help on the given subject title.. i will b thankful to u. ....etc

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Abstract
There are new system implementation challenges involved in the design of cognitive radios, which have both the ability to sense the spectral environment and the flexibility to adapt transmission parameters to maximize system capacity while co-existing with legacy wireless networks. The critical design problem is the need to process multi-gigahertz wide bandwidth and reliably detect presence of primary users. This places severe requirements on sensitivity, linearity, and dynamic range of the circuitry in the RF front-e ....etc

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ABSTRACT
This report present a novel idea to capture and represent compressible signals for transmission and storage at a rate below the Nyquist rate. This method is known as compressive sampling/sensing employs non adaptive linear projections that preserve the structure of the signal. The signal is reconstruced from these projections using optimization techniques.




TABLE OF CONTENTS
1 Introduction 1
2 Data Compression 3
2.1 Types of Data Compression . . . . . . . . . . . . . . . . . . . . . . 5
2.1.1 Loss ....etc

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Spectrum sensing based on energy detection
Today’s topic
Background of energy detection
Energy detection of unknown deterministic signal
Energy detection of unknown signal over fading channels
Background of energy detection
Energy detection of unknown deterministic signal 
The detection of a deterministic signal in white Gaussian noise reduces to the consideration of the sum of the squares of statistically independent Gaussian variates.
Lowpass processes
Bandpas ....etc

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Plz provide me matla code for energy detection based spectrum sensing ....etc

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The concepts of Wireless Sensor Networks and its issues like, energy efficiency, reduce communication bandwidth for maximize battery life, dynamically changed topology, WSN need a low rate inter sensor communication is required so required compression –estimation sensor. Classified as two Fusion Center(FC) and Adhoc WSNs. Another paper relating to this area :
• Jia Mengl , Husheng Li2 , and Zhu Hanl, Sparse Event Detection in Wireless Sensor Networks using Compressive Sensing, on information theory , may 2009.
describes a a circuit ....etc

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 I request about image restoration on compressive sensing using vhdl ....etc

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Grouping Technique for Cooperative Spectrum Sensing in Cognitive Radios




Rizwan Akhtar, Adnan Rashdi and Abdul Ghafoor
Electrical Engineering Department, College of Signals, National University of Science & Technology, Pakistan


Abstract—

Cognitive networks can potentially solve the
problems of spectrum scarcity by accommodating unlicensed
(secondary) users in under-utilized segments of the spectrum.
Spectrum sensing serves as the primary stimulus for a cognitive
radio an ....etc

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hi i would like get more details on spectrum sensing in cognitive radio
hi i would like get more details on spectrum sensing in cognitive radio algorithms and their implementation. ....etc

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ENERGY MINIMISATION TECHNIQUE IN
WIRELESS SENSOR NETWORK USING
COMPRESSIVE SENSING.
THESIS PRELIMINARY REPORT

Submitted by
REJIRAM R
Third Semester,M.Tech
Applied Electronics and Instrumentation




CHAPTER 1
INTRODUCTION
Compressed sensing (CS) is a new method of signal and image measurement and
reconstruction that takes advantage of the fact that many signals observed have sparse
representation under some basis. CS is an emerging model based framework for
signal recovery at a rate significantly be ....etc

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