Design of the Phase Sequences for Selected Mapping OFDM System
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چکیده
Peak to average power ratio (PAPR) distribution of the periodic orthogonal frequency division multiplexing (OFDM) symbol sequences is evaluated and it is shown that the OFDM symbol sequence with short period is expected to have high PAPR. PAPR bound of two sequences with Hamming distance D is derived. Using these results, we identify two conditions for the optimal phase sequences of selected mapping (SLM) and propose rows of a cyclic Hadamard matrix constructed by m-sequence as near optimal phase sequences for SLM, which has the best performance to reduce the PAPR of OFDM signals with small redundancy and no signal distortion.
منابع مشابه
An Efficient Scheme for PAPR Reduction of OFDM based on Selected Mapping without Side Information
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تاریخ انتشار 2004