Patent ID: 8175180

Claim:
A system for pre-encoding and pre-decoding, comprising: a pre-encoding apparatus, receiving a transmitting signal vector having a plurality of transmitting signals, and conducting m times encoding and i times interleaving to the transmitting signal vector, wherein m≧2, and i≧1, and the pre-encoding apparatus is constituted by randomly serially connected m pre-encoding units and i interleavers, wherein the transmitting signal vector is transmitted via the pre-encoding apparatus to a channel and configures a receiving signal vector having a plurality of receiving signals; and a pre-decoding apparatus, receiving the receiving signal vector from the channel, and conducting n times decoding and j times de-interleaving to the receiving signal vector so as to obtain the transmitting signal vector, wherein n≧2, and j≧1, and the pre-decoding apparatus is constituted by serially connected n pre-decoding units and j de-interleavers, wherein each of the pre-encoding units is composed of at least one encoder, and each of the pre-decoding units is composed of at least one decoder, wherein the encoder has a dimension lower than or equal to that of the pre-encoding unit, and the decoder has a dimension lower than or equal to that of the pre-decoding unit.