PAPR Distribution Analysis of OFDM Signals with Partial Transmit Sequence

Provided by: United States Navy
Topic: Mobility
Format: PDF
Third Generation Partnership Project (3GPP) LTE has adopted OFDMA as the uplink multiple access scheme. One of the major drawbacks is the high PAPR. Not only is the performance of PAPR with PTS technique influenced by the number of sub-blocks and the phase vector but also by the sub-block partitioning. The Partial Transmit Sequence (PTS) technique suffers from the search complexity of finding the optimum set of phase vectors. The authors propose a suboptimal combination algorithm that reduces the search complexity. The number of commutations in the suboptimal combination algorithm is much lower than the required by the original PTS technique. In this paper, they propose a suboptimal combination algorithm to reduce the searching complexity of finding the optimum set of vectors to minimize PAPR.

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