IEICE Transactions on Communications
Online ISSN : 1745-1345
Print ISSN : 0916-8516
Regular Section
A Novel Transmitter and Receiver Structure for Cognitive Radio Based OFDM Systems
Jung-Sun UMSung-Hyun HWANGChang-Joo KIMByung Jang JEONG
Author information

2011 Volume E94.B Issue 4 Pages 1070-1071


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.

Content from these authors
© 2011 The Institute of Electronics, Information and Communication Engineers
Previous article Next article