| A MC-CDMA signal has to be amplified using linear amplifier for its huge dynamic range.This paper analyses the envelope character of the MC-CDMA signal,and concludes that the envelope character of the MC-CDMA signal not only depends on the auto-correlation of every user’s spread code,but also depends on the cross-correlation of the codes,and has nothing to do with the user’s information bits.Because the MC-CDMA is suitable for indoor situation,it needs few spread code.The MC-CDMA signal’s envelope character can be improved significantly if we choose a small set of spread code with good correlation character. |
