Implementation of a RF transceiver for WRAN system using Cognitive Radio technology in TV Whitespace band
Jun‐Ki Min, Sung‐Ho Hwang, Ki‐Hong Kim, Yong‐Woon Park · 2010
The implementation of a RF transceiver for WRAN(Wireless Regional Area Network) system based on IEEE 802.22 standard using Cognitive Radio technology is presented in this paper. A CMOS RF transceiver IC for WRAN system operates in VHF/UHF(54~862MHz) broadband, and employs dual-path direct-conversion configuration and the in-band harmonic distortions are effectively suppressed by exploiting the dual-path direct conversion architecture. For 64QAM(3/4 coding rate) OFDM signal, an EVM of