MODIFIED SELECTED MAPPING TECHNIQUE TO REDUCE PEAK TO AVERAGE POWER RATIO FOR OFDM SIGNALS

Abstract — High peak to average power ratio of the transmitted signal is the major limitation of the orthogonal frequency division multiplexing technique. The aim of this paper is to approach for a new modified selected mapping (SLM) technique. The modified technique has the inclusion of the idea of sub-block partitioning of signals. Then, from a comparative analysis between the conventional SLM scheme and the modified SLM scheme, it is shown that the modification gives better complementary cumulative distributive function (CCDF) of the PAPR of transmitted signal. All the simulations works are done in matlab