PAPR restraining scheme for OFDMA multiple access system

PAPR restraining scheme for OFDMA multiple access system

  • CN 103,763,235 A
  • Filed: 01/10/2014
  • Published: 04/30/2014
  • Est. Priority Date: 01/10/2014
  • Status: Active Application
First Claim
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1. the PAPR of OFDMA multiple access system suppresses a scheme, it is characterized in that:

  • this scheme comprises the following steps;

    A. cut apart the stage, the signal segmentation that is first N by length is V sub-block, in each sub-block, only has NN position to have signaling point, and fill with 0 other position.Then each sub-block is carried out the IFFT conversion that N is ordered;

    B. each sub-block is multiplied by phase factor vector B=[B 1, B 2... B m..., B v], the phase factor B here mbelong to phase factor collection;

    φ

    w

    [0,2 π

    ].Each sub-block is added and generates alternative signal;

    C. travel through each alternative signal and carry out PAPR comparison, choose the less sequence of PAPR and transmit.

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