Zobrazeno 1 - 10
of 64
pro vyhledávání: '"E.F. Haratsch"'
Publikováno v:
IEEE Transactions on Magnetics. 46:933-941
We report on the use of low-density parity check (LDPC)-centric error correction coding (ECC) for magnetic recording read channel in the presence of significant burst errors. Since an LDPC code by itself is severely vulnerable to burst errors due to
Publikováno v:
IEEE Transactions on Magnetics. 46:87-91
Although the performance of a magnetic recording read channel can be improved by employing advanced iterative signal detection and coding techniques, the method nevertheless tends to incur significant silicon area and energy consumption overhead. Mot
Publikováno v:
IEEE Transactions on Magnetics. 44:4784-4789
In this paper, we examine the potential of applying concatenated low-density parity-check (LDPC) and Bose-Chaudhuri-Hocquenghem (BCH) coding for magnetic recording read channel with a 4 kB sector format. One key observation for such concatenated codi
Publikováno v:
IEEE Transactions on Magnetics. 43:1118-1123
By implementing a field-programmable gate array (FPGA)-based simulator, we investigate the performance of randomly constructed high-rate quasi-cyclic (QC) low-density parity-check (LDPC) codes for the magnetic recording channel at very low block sect
Autor:
M.S. Shaffer, Fadi Saibi, Kamran Azadet, H. Kim, Meng-Lin Yu, J.H. Saunders, E.F. Haratsch, Leilei Song
Publikováno v:
IEEE Journal of Solid-State Circuits. 37:317-327
In this tutorial paper, we present the application of well-known DSP techniques used in lower speed wireline and wireless applications, to high-speed optical communications. After an introduction on today's optical network architecture and typical op
Autor:
K. Azadet, E.F. Haratsch
Publikováno v:
IEEE Journal of Solid-State Circuits. 36:374-384
1000BASE-T Gigabit Ethernet employs eight-state 4-dimensional trellis-coded modulation to achieve robust 1-Gb/s transmission over four pairs of Category-5 copper cabling. This paper compares several postcursor equalization and trellis decoding algori
Autor:
E.F. Haratsch, K.K. Fitzpatrick
Publikováno v:
2008 IEEE International Symposium on VLSI Design, Automation and Test (VLSI-DAT).
A new radix-4 soft-output Viterbi architecture is presented, which achieves higher data rates than prior radix-2 SOVA designs. The proposed architecture is also more hardware-efficient than a previously reported radix-4 SOVA architecture. New circuit
Publikováno v:
GLOBECOM
A bit-node centric decoder architecture for low- density parity-check codes is proposed. This architecture performs the optimum sum-product algorithm. A bit node processing unit computes the bit-to-check node messages sequentially, while the computat
Publikováno v:
ICCCN
A serial sum-product architecture for low-density parity-check (LDPC) codes is presented. In the proposed architecture, a standard bit node processing unit computes the bit to check node messages sequentially, while the check node computations are br
Publikováno v:
ISCAS
By implementing an FPGA-based simulator, we investigate the performance of high-rate quasi-cyclic (QC) LDPC codes for the magnetic recording channel at very low sector error rates. Results show that error-floor-free performance can be realized by ran