BLOCK CODING SCHEME FOR REDUCTION OF PEAK TO MEAN ENVELOPE POWER RATIO OF MULTICARRIER TRANSMISSION SCHEMES

A block coding scheme for the reduction of the peak to mean envelope p ower ratio of multicarrier transmission schemes such as OFDM is propos ed. The principle of the scheme is illustrated with the specific examp le of a four-carrier signal. It is shown that the peak to mean envelop e power ratio of this signal can be reduced from 6.02dB to 2.48dB with a 3/4 rate block code. The application of the block coding principle with flexibility such that the coding rate can be traded against peak to mean envelope power ratio is illustrated with the example of an eig ht-carrier signal.