METHODS FOR OPTIMIZING DEGREE DISTRIBUTION OF LUBY-TRANSFORM CODE

摘要

Disclosed is a method for optimizing degree distribution of an LT code. The method, which is performed in a transmission device, comprises the steps of: classifying a total message including a common message part among a plurality of transmission devices, into a plurality of classes; calculating a symbol error possibility about each divided class; and obtaining degree distribution capable of minimizing a symbol error possibility based on the calculated symbol error possibility. Accordingly, in a dispersion LT code system including a sharing message between multiple transmitters, a symbol restoring possibility can be maximized.