PFEA111-65 3BSE050090R65 | ABB | Random phase shift sequence information

Description

PFEA111-65 3BSE050090R65 | ABB | Random phase shift sequence information

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In order to provide multiple OFDM signals for selection, the PFEA111-65 3BSE050090R65 method requires M IFFT calculators, which greatly improves the computational complexity. At the receiving end, in order to receive signals correctly, it is necessary to know the information of the random phase shift sequence. Therefore, it is necessary to transmit the random phase shift sequence as sideband information, which will occupy additional bandwidth and reduce transmission efficiency.

An improved SLM scheme is proposed to address the high computational complexity of the SLM method and the decrease in transmission efficiency caused by the transmission of sideband information in PFEA111-65 3BSE050090R65. The improvement scheme selects and maps data packets at the sending end, thereby reducing computational complexity. It uses the amplitude changes of the sent data to represent random phase shift information, eliminating the need for transmitting sideband information and improving transmission efficiency.

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