Title :
A construction of OFDM 16-QAM sequences having low peak powers
Author :
RoBing, C. ; Tarokh, Vahid
Author_Institution :
Dept. of Math., Ohio Univ., Athens, OH, USA
fDate :
7/1/2001 12:00:00 AM
Abstract :
Using a realization of 16-QAM as set addition of two scaled versions of the 4-PSK constellation, we construct 16-QAM sequences having low peak-to-mean envelope power ratios (PMEPR) from 4-PSK Golay sequences. Various upper bounds on the peak envelope powers of these sequences are established. Transmission using these sequences provides twice as much rate as transmission using complementary Golay sequences with a maximum PMEPR of 3.6 (5.56 dB)
Keywords :
Golay codes; OFDM modulation; phase shift keying; quadrature amplitude modulation; sequences; 16-QAM sequences; 4-PSK Golay sequences; 4-PSK constellation; OFDM; low peak-to-mean envelope power ratio; multicarrier communications; peak envelope powers; upper bounds; Frequency division multiplexing; History; Mathematics; OFDM modulation; Phase shift keying; Power amplifiers; Quadrature amplitude modulation; Quadrature phase shift keying; RF signals; Upper bound;
Journal_Title :
Information Theory, IEEE Transactions on
