Patent ID: 7032159
Filing Date: 2006-04-18
Classification: H04L,Y02D

Abstract:
1. A method for estimating expected performance of a receiver in a communication system using different parameters of a Reed-Solomon (RS) code while transmission is occurring in the communication system without changing parameters of a current RS code, the method comprising: receiving RS symbols in an input signal from the channel; processing the input signal in a RS decoder to decode the received RS symbols and generate an RS coded output of “N” RS symbols; selecting a virtual RS code comprising “M” sequential RS symbols, determining a number of erred RS symbols in the virtual RS code; determining length of RS error events by determining a number of sequential erred RS symbols in the virtual RS code, wherein RS error events are sequential erred RS symbols; using the number of erred RS symbols in the virtual RS code and lengths of RS error events, developing a histogram to determine updated parameters including a minimum number “t” of RS symbols that must be corrected and a maximal information symbols “K” that can be transmitted in the virtual RS code of length “M” that provides a RS frame error rate that is lower than a predetermined target RS frame error rate, wherein M=K+2t; and updating current parameters of the current RS code using the updated parameters.