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학술지 A Novel Transmitter and Receiver Structure for Cognitive Radio Based OFDM Systems
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저자
엄중선, 황성현, 김창주, 정병장
발행일
201104
출처
IEICE Transactions on Communications, v.E94.B no.4, pp.1070-1071
ISSN
0916-8516
출판사
일본, 전자정보통신학회 (IEICE)
DOI
https://dx.doi.org/10.1587/transcom.E94.B.1070
협약과제
11PR3500, UHF TV White Space를 이용한 CR 통신기술 개발, 정병장
초록
Wireless regional area network (WRAN) is intended to offer the fixed wireless access services using cognitive radio technology in the TV white space. Therefore, WRAN shall minimize the transmission power so that harmful interference is not imposed on the licensed users operating in the TV bands. In this paper, we propose a processing block that offers improvements in the SNR and diversity gain using the block to algebraically process two constellation symbols. Thus, the transmission power can be reduced by an amount equal to the gains. The simulation result shows that the proposed scheme has a better bit error performance than the transmission scheme defined in the IEEE 802.22 draft standard. © 2011 The Institute of Electronics, Information and Communication Engineers.
키워드
Cognitive radio, Diversity, Transmission power, WRAN
KSP 제안 키워드
Bit Error Performance, Cognitive Radio Technology, Diversity gain, Fixed Wireless Access(FWA), IEEE 802.22, Information and communication, Licensed Users(LU), OFDM systems, Receiver Structure, TV Band, TV White Spaces(TVWS)