Title :
On the phase sequence set of SLM OFDM scheme for a crest factor reduction
Author :
Lim, Dae-Woon ; Heo, Seok-Joong ; No, Jong-Seon ; Chung, Habong
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., South Korea
fDate :
5/1/2006 12:00:00 AM
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.
Keywords :
Hadamard matrices; OFDM modulation; m-sequences; Hamming distance; OFDM scheme; crest factor reduction; cyclic Hadamard matrix; m-sequence; orthogonal-frequency-division-multiplexing; phase sequence set; Bit error rate; Communication standards; Hamming distance; Interleaved codes; Land mobile radio; Nonlinear distortion; OFDM; Partial transmit sequences; Quadrature phase shift keying; Wireless LAN; Crest factor; cyclic Hadamard matrix; orthogonal-frequency-division multiplexing (OFDM); phase sequence; selected mapping (SLM);
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2006.871979
