| 摘要 |
PURPOSE: To provide a method and a device for improving processing time of sequence estimation technology, such as reduced-state sequence estimation(RSSE) which reduces complexity. CONSTITUTION: By previously calculating a possible value for the branch metrics in RSSE, pipelining and critical path shortening are enabled. By calculating branch metrics concerning the combination of all symbols possible for a channel memory in advance, a branch metrics unit(BMU) and a decision feedback unit(DFU) can be removed from a feedback loop, so that the critical paths can be reduced. A look-ahead branch metrics unit(LABMU) and an inter-symbol interference canceler(ISIC) previously calculate branch metrics, corresponding to all values possible for the channel memory.
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