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On the phase sequence set of SLM OFDM scheme for a crest factor reduction
- Issue Date
- May-2006
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- crest factor; cyclic Hadamard matrix; orthogonal-frequency-division multiplexing (OFDM); phase sequence; selected mapping (SLM)
- Citation
- IEEE TRANSACTIONS ON SIGNAL PROCESSING, v.54, no.5, pp.1931 - 1935
- Journal Title
- IEEE TRANSACTIONS ON SIGNAL PROCESSING
- Volume
- 54
- Number
- 5
- Start Page
- 1931
- End Page
- 1935
- ISSN
- 1053-587X
- Abstract
- The crest factor distribution of orthogonal-frequency-division-multiplexing (OFDM) symbol sequences is evaluated, and it is shown that OFDM symbol sequences with a short period are expected to have a high crest factor. The crest factor relationship between two input symbol sequences, Hamming distance D apart, is also derived. Using these two results, two criteria are proposed for a phase sequence set of the selected mapping (SLM) OFDM scheme and suggest the rows of the cyclic Hadamard matrix constructed from an m-sequence as a near-optimal phase sequence set of the SLM OFDM scheme.
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