Title :
On the performance of turbo product codes over partial response channels
Author :
Li, Jing ; Kurtas, Erozan ; Narayanan, Krishna R. ; Georghiades, Costas N.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
7/1/2001 12:00:00 AM
Abstract :
This paper evaluates the performance of single-parity check turbo product codes (TPC/SPC) over partial response channels. A rate-0.94 and a rate-0.89 TPC/SPC code are considered for use with PR4/EPR4 channels with proper precoding and with turbo equalization. Gains of 4.5 to 5 dB are obtained at BER of 10-5, revealing performance comparable to that of low density parity check codes. Apart from its linear encoding/decoding complexity and highly parallelizable decoding algorithm, TPC/SPC codes demonstrate favorable error statistics which are in harmony with the outer Reed-Solomon error correction code (RS-ECC), indicating it to be a promising candidate for future recording systems
Keywords :
digital magnetic recording; error statistics; iterative decoding; partial response channels; turbo codes; 4.5 to 5 dB; BER; EPR4 channels; PR4 channels; bit error rate; code performance; error statistics; highly parallelizable decoding algorithm; linear decoding complexity; linear encoding complexity; magnetic recording systems; partial response channels; precoding; single-parity check codes; turbo equalization; turbo product codes; Bit error rate; Error analysis; Error correction codes; Iterative decoding; Magnetic recording; Parity check codes; Partial response channels; Performance gain; Product codes; Turbo codes;
Journal_Title :
Magnetics, IEEE Transactions on
