Scharf, Louis L., authorMcCloud, Michael L., authorIEEE, publisher2007-01-032007-01-032000McCloud, Michael L. and Louis L. Scharf, Interference Estimation with Applications to Blind Multiple-Access Communication Over Fading Channels, IEEE Transactions on Information Theory 46, no. 3 (May 2000): 947-961.http://hdl.handle.net/10217/755We consider the detection of nonorthogonal multipulse signals on multiple-access fading channels. The generalized maximum-likelihood rule is employed to decode users whose complex fading gains are unknown. We develop geometrical interpretations for the resulting detectors and their corresponding asymptotic efficiencies. The generalized maximum-likelihood detection rule is then applied to find a matched subspace detector for the frequency-selective fading channel, under the assumption of a short coherence time (or long coherence time without the computational power to track the fading parameters). We propose blind implementations of these detectors for nonorthogonal multipulse signaling on both frequency-nonselective and frequency-selective multiple-access fading channels. These blind detectors extend the results of Wang and Poor to multipulse modulation and fast frequency selective fading. For comparison, the minimum mean-squared error decision rules for these channels are derived and blind implementations of their corresponding detectors are developed.born digitalarticleseng©2000 IEEE.Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.interference identificationfading channelsgeneralized likelihood functionsblind detectionmultiuser detectionText