Dogan, HakanPanayirci, ErdalCirpan, Hakan A.Cam, Goekhan2024-07-122024-07-122008978-1-4244-1998-2https://hdl.handle.net/20.500.12415/9013IEEE 16th Signal Processing and Communications Applications Conference -- APR 20-22, 2008 -- Aydin, TURKEYIn this paper, we present an efficient iterative receiver structure of tractable complexity for joint multiuser detection and multichannel estimation (JDE) of direct-sequence code-division multiple-access systems operating in the presence of time-varying flat fading channel. The time-varying channel is assumed to be modeled according to a piece-wise constant channel. An optimality criterion is defined and analytical expressions for the corresponding optimized weight coefficients are given. Monte-Carlo simulations of a synchronous scenario show that the proposed JDE receiver have excellent multiuser efficiency and are robust against errors in the estimation of the channel parameters.trinfo:eu-repo/semantics/closedAccessIterative Receiver for DS-CDMA Systems in the Presence of Time-Varying ChannelsConference Object+428WOS:000261359200106N/A