Wideband Spectrum Sensing Receiver for Cognitive Radio Application

Adhikari, Bijaya and Jamadagni, HS (2015) Wideband Spectrum Sensing Receiver for Cognitive Radio Application. In: IEEE International Conference on Electronics Computing and Communication Technologies (CONECCT), JUL 10-11, 2015, Bangalore, INDIA.

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Abstract

For effective spectrum utilization, cognitive radio makes use of wideband spectrum sensing receiver. Current wideband receiver architectures need wideband analog to digital converter (ADC) to sample wideband signal. As current state-of-art ADC has limitation in terms of power and sampling rate, there is a need to explore other alternative solutions. Compressive sampling (CS) data acquisition method is one of the alternatives. Cognitive radio signal which is sparse in frequency domain is sampled at sub-Nyquist rate using lower sampling rate ADC. To reduce the receiver complexity we use modulated wideband converter (MWC) architecture, a sub-Nyquist sampling method. The circuit level design of this architecture covers signal within frequency range of 500 MHz to 2.1 GHz, with channel bandwidth of 1600 MHz. By using 8 parallel paths with channel trading factor of 11, effective sampling rate of 550 MHz is achieved for successful support recovery of multi-band input signal of size N=12.

Item Type:	Conference Proceedings
Additional Information:	Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Department/Centre:	Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited:	22 Oct 2016 09:04
Last Modified:	22 Oct 2016 09:04
URI:	http://eprints.iisc.ac.in/id/eprint/54970

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