Title :
A Novel Application of LDPC-Based Decoder for WiMAX Dual-mode Inner Encoder
Author :
Lin, Li-Hsieh ; Wen, Kuei-Ann
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu
Abstract :
LDPC codes have recently received a lot of attention by their excellent error-correcting capability and have been adopted as an optional error correct coding scheme in WiMAX (802.16e) standard for mobility. In order to the low-complexity SOC (system-on-a-chip) design and multi-mode transmitter compatible, we proposed a novel application of LDPC decoder to substitute Viterbi decoder for convolutional encoder. The main character presented in this study is that the general two-decoder structure is replaced by one decoder. Our results indicate that the proposed scheme processes nice performance for mobile WiMAX system
Keywords :
WiMax; convolutional codes; decoding; error correction codes; mobile radio; parity check codes; radio transmitters; system-on-chip; LDPC decoder; dual-mode inner encoder; error correct coding scheme; low-complexity SOC; mobile WiMAX system; mobility standard; multimode transmitter; system-on-a-chip design; Convolutional codes; Error correction codes; Forward error correction; Iterative algorithms; Iterative decoding; Maximum likelihood decoding; Parity check codes; System-on-a-chip; Viterbi algorithm; WiMAX; LDPC decoder; SoC design; Viterbi decoder; WiMAX; convolutional code;
Conference_Titel :
Wireless Technology, 2006. The 9th European Conference on
Conference_Location :
Manchester
Print_ISBN :
2-9600551-5-2
DOI :
10.1109/ECWT.2006.280464
