Detector for single-user coded signals in the presence of interference

摘要

Techniques are provided for detecting a coded signal in the presence of interference. In an embodiment, a primary transmitter corresponds to a desired transmitter, and one or more secondary transmitters correspond to interfering transmitters. Received symbols, which include interference and additive noise, are filtered to recover a set of original message bits. An estimate of the set of original message bits may be determined using an ordered successive interference cancellation (SIC) decoder that uses either a SIC detector or an AWGN-based detector, depending on the signal-to-interference ratio at a primary receiver.

主权项

1. A method of decoding symbols, the method comprising:
receiving a symbol comprising a data portion and an interference portion; determining a signal constellation for the symbol based at least in part on the data portion and the interference portion; and decoding the data portion based on a modified symbol, wherein the modified symbol is obtained by processing the symbol using a distance metric between the symbol and the signal constellation for the symbol.