Weighted interleaving for correlated channel coding

Details Weighted interleaving for correlated channel coding Weighted interleaving for correlated channel coding

1997-05-29

1998-12-22

Chung, Phung M.

Excavating

371 45, G06F 1100

Patent

active

058526145

ABSTRACT:
A weighted interleaving system (10) is used for correlated channel coding. The weighted interleaving system (10) includes a weighted interleaver (12) having a pseudo-random demultiplexer (18), a first branch (28), a second branch (30), a third branch (32) and a pseudo-random multiplexer (38). The pseudo-random demultiplexer (18) receives input data bits at an input (20) and randomly distributes the input data bits to first (22), second (24) and third (26) outputs of the pseudo-random demultiplexer (18). The first branch (28) in communication with the first output (22) delays the transmission of the input data bits routed to it by a minimum delay. The second branch (30) in communication with the second output (24) delays the transmission of the input data bits routed to it by a delay uniform in probability from the minimum delay to a maximum delay. The third branch (34) in communication with the third output (26) delays the transmission of the input data bits routed to it by the maximum delay. The pseudo-random multiplexer (38) combines the input data bits received in its first (40), second (42) and third (44) inputs and routes the input data bits to an output (46).

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Overview of Techniques for Mitigation of Fading and Shadowing in the Direct Broadcast Satellite Radio Environment, David Bell, John Gevargiz, Arvydas Vaisnys and David Julian.

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