| 摘要 |
In a device for transmitting a sequence of information symbols over a plurality of partial channels having different transmission characteristics and together forming a transmission channel, the sequence of information symbols is grouped ( 102 ), whereupon a first set and a second set of the information symbols are coded ( 103 a , 103 b) using different coding methods. The coded information symbols are then combined in sets ( 104 a , 104 b) and are transmitted over a channel having two sets of partial channels. Both the first and the second set of partial channels have at least one partial channel whose signal-to-noise ratio without combining would be lower than a threshold signal-to-noise ratio which is minimally required by the coding method used for the set to which this partial channel belongs in order to achieve a predetermined reliability when decoding the information symbols and whose signal-to-noise ratio is greater than or equal to the threshold signal-to-noise ratio as a result of the combination step. The concept of transmitting and receiving according to the present invention permits an increased transmission rate since there is at least one partial channel in each set as a result of the setwise combination.
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