PERFORMANCE OF THE HARD-LIMITING DS/SSMA RECEIVER IN NON-GAUSSIAN NOISE.

The performance of the hard-limiting correlation receiver is compared with that of the linear correlation receiver in a multi-user non-Gaussian channel. Hard-limiting receivers are introduced to improve the average bit error probability when the additive non-Gaussian channel noise shows impulsive behavior. The contribution of the non-Gaussian noise is examined by modeling the samples of noise after front-end filtering, and the multi-user interference is accounted for by considering K users transmitting over the channel using the binary PSK direct-sequence SSMA technique. Two techniques for obtaining an analytical expression for the average bit error probability of the two receivers are examined.