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SeLected Mapping (SLM) is a technique used to reduce the Peak-to-Average Power Ratio (PAPR) in Orthogonal Frequency-Division Multiplexing (OFDM) systems. SLM requires the transmission of several side information bits for each data block, which results in some data rate loss. These bits must be channel-encoded because they are particularly critical to the error performance of the system. This increases the system complexity and transmission delay, and decreases the data rate even further. In this paper, the authors propose a novel SLM method for which no side information needs to be sent.
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