Importance

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Abstract

A multi-carrier transmission system and a method thereofor employing a bit distribution method capable of solving the problem set forth above by regarding a plurality of SNR values evaluated at different timings as one SNR value evaluated at different frequency at the same timing and is capable of solving the problem set forth above by realizing a given transmission speed depending upon a plurality of SNR values evaluated at different timings and thus maximizing performance margin. The multi-carrier transmission system has signal to noise ratio evaluating means for obtaining a plurality sets of signal to noise ratio by evaluating signal to noise ratio of each of the multi-carriers at different timing respectively corresponding to a plurality of kinds of noise environments, and bit distribution means for performing bit distribution of each carrier depending upon one set of signal to noise ratio with taking a plurality of sets of signal to noise ratios as one set of signal to noise ratio evaluated on different frequency at the same timing.

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First Claim