Turbo coding for fast fading channels

Details Turbo coding for fast fading channels Turbo coding for fast fading channels

2005-09-13

2005-09-13

Bocure, Tesfaldet (Department: 2631)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S267000, C375S347000

Reexamination Certificate

active

06944233

ABSTRACT:
A method for communicating a bit stream using turbo coding encodes each input bit in the bitstream using a single 1/3 rate turbo encoder to produce a set of three bits. One of the three bits in each set is repeated to produce a set of four bits for each input bit. A time interval between the four bits is increased before transmitting the set of four bits on a communications channel. In a receiver, the time interval between the set of four bits received via the communications channel is decreased using a de-interleaver. The received set of four bits are diversity combine into a received set of three bits, and then a single 1/3 rate turbo decoder is used to recover an output bit for each input bit.

REFERENCES:
patent: 6014411 (2000-01-01), Wang
patent: 6622023 (2003-09-01), Chheda
patent: 2002/0022468 (2002-02-01), Yoon et al.
patent: 2002/0089965 (2002-07-01), Kim
“Comparison of ¼ turbo coding methods for HSDPA,” TSG-RAN WG1 #21, Turin, Italy, Aug. 27th-31th, 2001.

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