Communications Blockset

General Multiplexed Deinterleaver

Restore ordering of symbols using specified-delay shift registers

Library

Convolutional sublibrary of Interleaving

Description

The General Multiplexed Deinterleaver block restores the original ordering of a sequence that was interleaved using the General Multiplexed Interleaver block.

In typical usage, the parameters in the two blocks have the same values. As a result, the Interleaver delay parameter, V, specifies the delays for each shift register in the corresponding interleaver, so that the delays of the deinterleaver's shift registers are actually max(V)-V.

The input can be either a scalar or a frame-based column vector. It can be real or complex. The input and output signals share the same sample time.

Dialog Box

Interleaver delay (samples)

A vector that lists the number of symbols that fit in each shift register of the corresponding interleaver. The length of this vector is the number of shift registers.

Initial conditions

The values that fill each shift register when the simulation begins.

Pair Block

General Multiplexed Interleaver

See Also

Convolutional Deinterleaver, Helical Deinterleaver

References

[1]  Heegard, Chris and Stephen B. Wicker. Turbo Coding. Boston: Kluwer Academic Publishers, 1999.

General CRC Syndrome Detector

General Multiplexed Interleaver