Title :
Performance of coded OFDM in a fading environment using high rate low-density parity-check codes
Author :
Gruenbacher, Don M. ; Serener, Ali
Author_Institution :
Dept. of Electr. & Comput. Eng., Kansas State Univ., Manhattan, KS, USA
Abstract :
A bit error analysis of wideband OFDM systems that use high rate (0.67⩽R⩽0.95) low-density parity-check codes for bit-error protection is presented. Subcarrier modulation methods of BPSK, QPSK, and 16-QAM are implemented on channel models that include shadowed Rician fading and additive white Gaussian noise. The performance of different low-density parity check (LDPC) codes constructed through random and systematic methods is also compared
Keywords :
AWGN channels; OFDM modulation; Rician channels; channel coding; error detection codes; error statistics; modulation coding; quadrature amplitude modulation; quadrature phase shift keying; 16-QAM; AWGN channel; BPSK; LDPC codes; QPSK; additive white Gaussian noise; bit error analysis; bit-error protection; channel coding; channel models; coded OFDM; fading environment; high rate codes; low-density parity-check codes; random methods; shadowed Rician fading; subcarrier modulation methods; systematic methods; wideband OFDM systems; Additive white noise; Binary phase shift keying; Error analysis; Fading; OFDM modulation; Parity check codes; Protection; Quadrature phase shift keying; Rician channels; Wideband;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965168
