THE RELATIONSHIPS AMONG DATA SYMBOLS SATISFIED FOR SIDELOBE SUPPRESSION IN MB-OFDM COGNITIVE RADIOS
会议名称：《2009 IEEE International Conference on Communication Technology and Applications（ICCTA2009）》
会议日期：2009年
学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统]
基 金：supported by:NSFC(60772021) The Research Fund for the Doctoral Program of Higher Education(20060013008,20070013029) the National High-tech Research and Development Program(863 Program)(2009AA01Z262) supported by the The Ministry of Knowledge Economy,Korea,under the ITRC support program supervised by the Institute for Information Technology Advancement. (IITA-2009-C1090-0902-0019)
关 键 词：OFDM sidelobe suppression data symbols relationships
摘 要：正From the mathematic expression,we can see that sidelobe power of multi-band orthogonal frequency-division multiplexing（MB-OFDM） signal is a function of the data symbols loaded on the *** the derivation of the minimum of the function,relationships among data symbols, which help to suppress sidelobes,are *** types of methods,referred as Sub-carrier Adding（SA） method and Sub-carrier Multiplying（SM） method, are proposed,which realize the relationships at the cost of small degradation in information transmission *** a result,with the proposed methods,the sidelobe power can be *** results also prove this.