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A Novel Transmitter and Receiver Structure for Cognitive Radio Based OFDM Systems
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- Authors
- Jung-Sun UM, Sung-Hyun HWANG, Chang-Joo KIM, Byung Jang JEONG
- Issue Date
- 2011-04
- Citation
- IEICE Transactions on Communications, v.E94.B, no.4, pp.1070-1071
- ISSN
- 0916-8516
- Publisher
- 일본, 전자정보통신학회 (IEICE)
- Language
- English
- Type
- Journal Article
- Abstract
- 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.
- KSP Keywords
- 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)