LDPC Codes: Introduction
Procedure
Design Plan for Exp-4 :
Subexp 1: (a) Show a matrix chosen at random from some collection of non-sparse, sparse and regular, sparse-but-irregular set of matrices. Ask user to select the type of this matrix. All matrices in the collection should have full rank. Rates can be 1/2,2/3, 1/3. Block lengths should vary from 6-10.
(b) If the matrix is sparse (regular or irregular), it defines an LDPC code. Ask user to find out rate of the LDPC code.
Subexp 2: Show a Tanner graph from a collection and ask user to select which of the H matrices it represents. Again the block lengths and rates should vary as the above.