Method and apparatus for detecting symbols received wirelessly using probabilistic data association with uncertainty

摘要

A method detects symbols in a signal received via a wireless channel by generating a statistical model for each symbol, and determining contribution from all other symbols in the signal as an expected interference. The expected interference is subtracted from the signal to obtain an interference-free signal. Then, the symbol is inferred based on the statistical model and the interference-free signal.

主权项

1. A method for detecting symbols in a signal received via a wireless channel, comprising for each symbol to be detected:
generating a statistical model for each symbol, wherein the symbol is approximated with a Gaussian distribution having a mean and a variance are equal to the mean and variance of a corresponding transmitted symbol, and wherein components of the Gaussian distribution are weighted equally; determining contribution from all other symbols in the signal as an expected interference; subtracting the expected interference from the signal to obtain an interference-free signal; and inferring the symbol based on the statistical model and the interference-free signal, wherein the steps are performed in a receiver.