Title :
High rate coded OFDM with channel equalization
Author :
Gruenbacher, Don M. ; Serener, Ali
Author_Institution :
Dept. of Electr. & Comput. Eng., Kansas State Univ., Manhattan, KS, USA
Abstract :
We consider the use of wideband systems for the fixed point-to-point transmission of coded data with low bit-error rate requirements. A system is defined which is based on OFDM transmission with PSK and QAM subcarrier modulation, error control coding using low-density parity-check (LDPC) codes, and channel equalization to reduce intersymbol interference from a fading channel. Tradeoffs between modulation parameters and equalization complexity are also discussed. High rate LDPC codes are considered for this system.
Keywords :
OFDM modulation; equalisers; error correction codes; error statistics; fading channels; intersymbol interference; parity check codes; phase shift keying; quadrature amplitude modulation; radio links; LDPC; PSK subcarrier modulation; QAM subcarrier modulation; channel equalization; coded data transmission; equalization complexity; error correcting codes; fading channel; fixed point-to-point transmission; high rate coded OFDM; intersymbol interference reduction; low bit-error rate; low-density parity-check codes; modulation parameters; wideband systems; Bit error rate; Error correction; Fading; Intersymbol interference; Modulation coding; OFDM modulation; Parity check codes; Phase shift keying; Quadrature amplitude modulation; Wideband;
Conference_Titel :
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on
Print_ISBN :
0-7803-7523-8
DOI :
10.1109/MWSCAS.2002.1187069
