A Quadrature Coded OFDM for Reducing Effects of Frequency Offset in Wireless Transmission System  

作　　者：TONGXue-jian JIHong 等 

机构地区：[1]SchoolofTelecommunicationEngineering,BeijingUniversityofPostsandTelecommunications,Beijing100876,P.R.China [2]SchoolofTelecommunicationEngineering,BeijingUniversityofPostsandTelecommunications,Beijing100

出　　处：《The Journal of China Universities of Posts and Telecommunications》2001年第2期11-15,共5页中国邮电高校学报（英文版）

基　　金：ThisworkissupportedbyNationalNaturalScienceFund!(No.69872 0 0 8)

摘　　要：A new quadrature coded OFDM system is proposed. The transmitted data symbols are grouped in such format that the in phase side and the quadrature side of the symbols are arranged in opposite order. By analysis and simulation, the performance of the new system can be improved greatly, as well as the harmful influences on the system owing to frequency offset can be reduced effectively, which can combat the disadvantages of OFDM system.A new quadrature coded OFDM system is proposed. The transmitted data symbols are grouped in such format that the in phase side and the quadrature side of the symbols are arranged in opposite order. By analysis and simulation, the performance of the new system can be improved greatly, as well as the harmful influences on the system owing to frequency offset can be reduced effectively, which can combat the disadvantages of OFDM system.

关 键 词：orthogonal   frequency division multiplexing(  OFDM  ) frequency offset interchannel interference(  ICI  ) equal gain combination(  EGC  ) 

分 类 号：TN914.3[电子电信—通信与信息系统]