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263 | P a g e

SPECTRUM SENSING IN COGNITIVE RADIO AT DIFFERENT SNRs USING MIMO TECHNIQUE

1

Subba Amin,

1

Mehboob ul Amin,

2

GM Bhat

1

Postgraduate Department of Electronics and Instrumentation, University of Kashmir

2

College of Technology, Zakura campus, University of Kashmir, J&K (India)

ABSTRACT

Spectrum sensing has reborn as a very active research area in recent years despite its long history. Various techniques have been used for sensing the spectrum holes, each having its pros and cons .The introduction of MIMO technology in spectrum sensing can dramatically improve the performance of cognitive radio. In this paper a new Multiple –Input-Multiple-Output antennas have been used for the Spectrum Sensing in Cognitive Radios. The results show that Detection probability increase with the increase in Diversity order. Simulations are performed at different SNRs of -14db,-10db,-6db; -2db.The Detection probability for each antenna configurations gets alleviated at higher SNR.

Key words: Cognitive Radio (CR) Signal-to-noise ratio(SNR), Primary User (PU) ,MIMO ,SU.

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