Title :
A cognitive radio receiver front-end IC based on spread spectrum sensing technique
Author :
Zhang Ying ; Meaamar, Ali ; Zheng Yuanjin
Author_Institution :
IC Design of Excellence, Nanyang Technol. Univ., Singapore, Singapore
Abstract :
Spectrum sensing in cognitive radio is an important part to detect unknown signal(s). This paper introduces a spread spectrum technique for spectrum sensing in cognitive radio in order to detect the availability of input spectrum within 800MHz to 3.5GHz frequency band. The designed receiver front-end IC can achieve the simulated gain of 30dB, QVCO phase noise of -117dBc/Hz at 1MHz offset at 2.4GHz carrier, noise figure of 5.3dB, IIP3 of -21dBm and total power dissipation of 90mW, including VCO and Mixer buffer.
Keywords :
cognitive radio; radio receivers; spread spectrum communication; QVCO phase noise; cognitive radio receiver front-end IC; frequency 1 MHz; frequency 2.4 GHz; frequency band; gain 30 dB; mixer buffer; noise figure 5.3 dB; power 90 muW; receiver front-end IC; spread spectrum sensing technique; total power dissipation; Cognitive radio; OFDM; Receivers; Sensors; Voltage-controlled oscillators; Wideband;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6571782
