2 TURBO DECODER USING BASE 2 LOG MAP ALGORITHM

摘要

The present invention is to provide a turbo decoder that reduces the size of the hardware without any performance degradation by transforming a complex E function into a simple 2 function using a log map using a base of 2, the present invention provides a map (MAP : Turbo decoder that extracts each surplus information from the first and second sets of information using the Maximum A-Posteriori Probability (Algorithm) algorithm, wherein the map algorithm is converted using a logarithm of base 2, and the converted map algorithm And a second function that adds each of the first and second sets of information with an exponential power of 2 to each other and takes a logarithm of base 2, and includes means for calculating the two functions.