Title :
Low PMEPR Code Based on STAR-16-QAM Constellation for OFDM
Author :
Taha, Zafar Q. ; Liu, Xian
Author_Institution :
Univ. of Arkansas-Little Rock, Little Rock
fDate :
9/1/2007 12:00:00 AM
Abstract :
High peak-to-mean envelope power ratio has been a major issue in the implementation of orthogonal frequency division multiplexing systems in low cost application devices. In this letter, we construct code with low peak to mean envelope power ratio based on construction of STAR-16-QAM constellation as a scaled set sum of two QPSK constellations. The construction of Golay sequences based on STAR-16-QAM constellation is shown and upper bound for peak-to-mean envelope power ratio for OFDM is derived.
Keywords :
Golay codes; OFDM modulation; phase shift keying; quadrature amplitude modulation; sequential codes; Golay sequences; OFDM; QPSK constellation code; STAR-16-QAM constellation code; orthogonal frequency division multiplexing system; peak-to-mean envelope power ratio code; Costs; Digital audio broadcasting; Frequency division multiplexing; Modulation coding; OFDM; Phase shift keying; Quadrature amplitude modulation; Quadrature phase shift keying; Surges; Upper bound;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.070667
