Abstract
Low-density parity-check (LDPC) code, a very promising near-optimal error correction code (ECC), is being widely considered in next generation industry standards. The VLSI implementation of high-speed LDPC decoder remains a big challenge. This paper presents the construction of a new class of implementation-oriented LDPC codes, namely shift-LDPC codes. With girth optimization, this kind of codes can perform as well as computer generated random codes. More importantly, the decoder can be efficiently implemented to obtain very h ....etc

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Introduction
A low-density parity-check (LDPC) code is a linear error correcting code, a method of transmitting a message over a noisy transmission channel by adding redundancy to the data bits. LDPC codes are capacity approaching codes, which means that practical constructions exist that allow for low error probability decoding at noise close to the theoretical maximum (the Shannon limit). LDPC codes are finding increasing use in data-corrupting noise is desired (10 Gbps Ethernet, DVBS-S, etc).
Gallager invented “regular” LDPC co ....etc

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B = FIR1(N,Wn) designs an N'th order lowpass FIR digital filter
and returns the filter coefficients in length N+1 vector B.
The cut-off frequency Wn must be between 0 < Wn < 1.0, with 1.0
corresponding to half the sample rate. The filter B is real and
has linear phase, i.e., even symmetric coefficients obeying B(k) =
B(N+2-k), k = 1,2,...,N+1.
If Wn is a two-element vector, Wn = , FIR1 returns an
order N bandpass filter with passband W1 < W < W2.
B = FIR1(N,Wn,'high') designs a highpa ....etc

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I WANT ENERGY EFFICIENT LAYERED ENCODING LDPC PROJECT DOCUMENTATION ,CODE ,RESULTS IMMEDIATELY PLEASE HELP ME
MY MBL NO:9959203690mall] ....etc

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ldpc bsc channel
voglio la routine matlab ottimizzata per i codici ldpc sul canale bsc, perchè sono necessari per i mei studi grazie.
come faccio ad ottenerle? ....etc

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EG-LDPC Codes for the Erasure Wiretap Channel



Abstract

The wiretap channel model, proposed by Wyner,
has been studied by various authors from the perspectives of
security, reliability and cryptographic protocols. A basic theme
of these discussions has been information theoretically secure
communication whose degree of secrecy can be theoretically
proved. This paper explains a practical implementation of Euclidean
Geometry (EG) - Low Density Parity Check (LDPC)
codes for wiretap channels of type I an ....etc

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please provide me the simulation of ldpc codes on matlab ....etc

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LDPC CODE DESIGN
LDPC CODE DESIGN ....etc

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I am looking for matlab code shadow detection and removal in rgb images using matlab, anybody can help me? ....etc

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