Communications Toolbox

Block Coding Features of the Toolbox

The class of linear block coding techniques includes categories shown below.

The Communications Toolbox supports general linear block codes. It also includes functions to process cyclic, BCH, Hamming, and Reed-Solomon codes (which are all special kinds of linear block codes). Functions in the toolbox can accomplish these tasks:

• Encode or decode a message using one of the techniques mentioned above
• Determine characteristics of a technique, such as error-correction capability or valid message length
• Perform lower level computations associated with a technique, such as
• Compute a decoding table
• Compute a generator or parity-check matrix
• Convert between generator and parity-check matrices
• Compute a generator polynomial

Note    The functions in this toolbox are designed for block codes that use an alphabet whose size is a power of 2.

The table below lists the functions that are related to each supported block coding technique.

Functions Related to Block Coding Techniques 

Block Coding Technique	Toolbox Functions
Linear block	encode, decode, gen2par, syndtable
Cyclic	encode, decode, cyclpoly, cyclgen, gen2par, syndtable
BCH	encode, decode, bchenco, bchdeco, bchpoly, cyclgen, gen2par, syndtable
Hamming	encode, decode, hammgen, gen2par, syndtable
Reed-Solomon	rsenc, rsdec, rsgenpoly, rsencof, rsdecof

Block Coding

Block Coding Terminology