Title :
Bounds for low-density parity-check codes over partial-response channels
Author :
Tan, Wei ; Todd, R.M. ; Cruz, J.R.
Author_Institution :
Sch. of Electr. & Comput. Eng., Oklahoma Univ., Norman, OK, USA
Abstract :
Summary form only given. The application of low-density parity-check (LDPC) codes to magnetic recording systems motivates the search for analytical ways to evaluate system performance over partial-response (PR) channels. In this paper a technique proposed by Duman and Kurtas (IEEE Trans. Inform. Theory, vol. 47, pp. 1203-1205, 2001) is extended to bound the frame error rate (FER) of high-rate LDPC codes. We circumvent the requirement that the weight distribution of the underlying code must be known by using estimates (A. Ashikhmin et al, ibid., vol. 47, pp. 1050-1061, 2001). This new bounding technique is used to compute the bounds for geometrically constructed LDPC codes over PR channels. Simulations are used to evaluate the computed bounds.
Keywords :
error statistics; magnetic recording; parameter estimation; parity check codes; partial response channels; LDPC codes; PR channels; bounding technique; frame error rate bounds; geometrically constructed LDPC codes; low-density parity-check code bounds; magnetic recording systems; partial-response channels; simulations; system performance; weight distribution estimates; Application software; Bit error rate; Computational modeling; Geometry; Linear code; Magnetic analysis; Magnetic recording; Parity check codes; Performance analysis; System performance;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1001123
