This paper presents the construction of large girth Quasi-Cyclic low density parity check (QC-LDPC) codes and anew multicarrier frequency hopping spread spectrum(MCFH-SS) system. The performance of newly obtained codes is evaluated by comparing with Reed Solomon (RS) codes. The computer simulation results show that the two girth-twelve QC-LDPC codes significantly outperform conventional RS codes with a gain of 2.1 dB at
—Bit error rate, DPSK, Girth, QC-LDPC,Rayleigh fading
Abid Yahya Abid Yahya is with the Collaborative Microelectronic Design Excellence Centre Universiti Sains Malaysia (phone: +6045995805;fax: +6045930920).
Othman Sidek is the director of Collaborative Microelectronic Design Excellence Centre Universiti Sains Malaysia.
M. F. M. Salleh is with the School of Electrical and Electronic Engineering, Universiti Sains Malaysia.
Farid Ghani is currently working as Professor in the School of Computer and Communication Engineering, Universiti Malaysia Perlis, Malaysia.
Cite: Abid Yahya, Othman Sidek, M. F. M. Salleh and Farid Ghani, "Lower Computation and Storage Complexity ofQC-LDPC Codes in Rayleigh Fading Channel," International Journal of Computer Theory and Engineering
vol. 1, no. 2, pp. 110-113, 2009.