@unpublished{TUW-110997, author = {Hlawatsch, Franz and Matz, Gerald}, title = {Time-frequency characterization of random time-varying communication channels}, year = {2005}, note = {talk: Workshop on Time-frequency methods for pseudodifferential operators, Wien, {\"O}sterreich (Erwin Schr{\"o}dinger Institut for Mathematical Physics); 2005-05-04} }