Effective error control scheme for satellite communications

Details Effective error control scheme for satellite communications Effective error control scheme for satellite communications

H - Electricity

04

L

340/75

H04L 1/00 (2006.01) H04B 7/185 (2006.01) H04L 1/18 (2006.01)

Patent

CA 1157121

YO979-066 AN EFFECTIVE ERROR CONTROL SCHEME FOR SATELLITE COMMUNICATIONS ABSTRACT A hybrid scheme for controlling transmission errors in digital data communication systems. Normally, data blocks with a small number of parity digits for error detection are transmitted. When the presence of errors is detected, the retransmissions are not the original data blocks but some properly selected blocks for correcting errors in those erroneously received data blocks which are stored in a buffer at the re- ceiver. The retransmitted blocks are formed based on the original data blocks and error-correcting codes with an invertible property. When such blocks are received, they are used to recover the original data blocks either by an inversion operation or by a de- coding process.

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