LS码是一种具有正交互补性质的多址码,相关性能优良,因此可以用于克服符号间干扰(ISI)和多址干扰(MAI)。它提出了一种克服多载波码分多址(MC-CDMA)系统多址干扰的LS码接入法,并对采用这两种码的MC-CDMA系统进行仿真对比,对比结果表明:相关函数特性好的LS码序列具有较好的正交性更适合于同步的MC-CDMA系统,其克服多址干扰性能较MC-Walsh-CDMA系统强。 The LS code is a multi-access code with orthogonal complementarity and good correlation performance and can therefore be used to overcome ISI and MAI. It proposed an LS code access method to overcome the multiple access interference in multi-carrier code division multiple access (MC-CDMA) system and compared the MC-CDMA system using these two codes. The comparison results show that the correlation function Good character of the LS code sequence has better orthogonality is more suitable for synchronous MC-CDMA system, which overcomes the multiple access interference performance than the MC-Walsh-CDMA system.