METHOD AND SYSTEM FOR IMPROVING DECODING EFFICIENY IN WIRELESS RECEIVERS

摘要

The present invention discloses a method and system for improving the decoding efficiency in a wireless receiver to obtain a correct decoded data string. The method comprises generating an active state metric matrix of a receiving codeword, calculating a differential metric matrix pertinent to the active state metric matrix, identifying a maximum likelihood path and one or more alternative paths based on the differential metric matrix, deriving a first decoded data string corresponding to the maximum likelihood path, deriving a plurality of second decoded data strings corresponding to the one or more alternative paths, respectively examining the integrity of the first decoded data string; and examining the integrity of the plurality of second decoded data strings after the first decoded data string is determined erroneous, wherein the wireless receiver obtains the correct decoded data string.