Title :
Recursive construction of 16-QAM Super-Golay codes for OFDM systems
Author :
Olfat, Masoud ; Liu, K. J Ray
Author_Institution :
Dept. of Electr. & Comput. Eng., Maryland Univ., College Park, MD, USA
Abstract :
In this paper, the peak to mean envelope power (PMEPR) of the OFDM codes generated from a 16-QAM constellation is discussed. Maintaining the same level of error correction properties, these codes achieve higher information rate. A new set of 16-QAM Golay sequences having PMEPR bounded up to 3 dB is defined. Many recursive structures are found to generate Super Golay sequences. The recursive algorithm is started by a generalized realization of a 16-QAM sequence as a weighted sum of two QPSK sequences. The coding rate and information rate of the generated code is compared to similar works.
Keywords :
Golay codes; OFDM modulation; error correction; modulation coding; quadrature amplitude modulation; quadrature phase shift keying; 16-QAM Super-Golay codes; OFDM systems; QPSK sequence; coding rate; error correction properties; information rate; orthogonal frequency division multiplexing; peak to mean envelope power; quadrature amplitude modulation; quadrature phase shift keying; recursive algorithm; Block codes; Error correction; Error correction codes; Frequency conversion; Information rates; OFDM modulation; Peak to average power ratio; Power engineering computing; Quadrature phase shift keying; Transmitters;
Conference_Titel :
Communications, 2003. ICC '03. IEEE International Conference on
Print_ISBN :
0-7803-7802-4
DOI :
10.1109/ICC.2003.1204083
