Patent ID: 8938040
Filing Date: 2015-01-20
Classification: H04L

Abstract:
1. A pre-processor paired in use with a communications receiver, the receiver configured to receive a signal including encoded data and to extract a decoded estimate of the data, the pre-processor comprising: an input operable to receive an input signal that is transmitted via a communication channel to the paired pre-processor and communications receiver, the input signal including first encoded data; a channel estimator operable to estimate at least one feature of the communication channel based on the input signal and a feedback signal; a signal modifier operable to modify the input signal dependent on the at least one estimated feature to result in a modified signal including second encoded data related to and different from the first encoded data, the signal modifier including a forward error correction (FEC) unit for deriving the feedback signal provided to the channel estimator; and an output for providing the modified signal to the communications receiver, wherein the channel estimator and the signal modifier operate without feedback from the communications receiver.