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Implementation of a RF transceiver for WRAN System Using Cognitive Radio Technology in TV Whitespace Band  

Min, Jun-Ki (삼성전기 기술총괄 중앙연구소 UMS랩)
Hwang, Sung-Ho (삼성전기 기술총괄 중앙연구소 UMS랩)
Kim, Ki-Hong (삼성전기 기술총괄 중앙연구소 UMS랩)
Park, Yong-Woon (삼성전기 CDS 사업부 UC솔루션팀)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.35, no.5A, 2010 , pp. 496-503 More about this Journal
Abstract
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 <-31.4dB(2.7%) has been achieved at 10dBm off-chip PA output power and the total chip area with pads is 12.95 mm2. The experimental results show that the proposed CMOS RF transceiver IC has perfect performance for WRAN system based on TDD(Time Division Duplex) mode.
Keywords
Cognitive radio; TV Whitespace; WRAN; Broadband; RF Transceiver;
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  • Reference
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