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Browsing Araştırma Çıktıları | WoS | Scopus | TR-Dizin | PubMed by Journal "2008 IEEE 16th Signal Processing, Communication and Applications Conference, SIU"

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    İterative Receiver for Ds-Cdma Systems in the Presence of Time-Varying Channels
    (2008) Doğan, H.; Panayırcı, Erdal; Panayırcı, Erdal; Çirpan, H.A.; Çam, G.
    In this paper, we present an efficient iterative receiver structure of tractable complexity for joint multiuser detection and multichannel estimation (JDE) ofdirect-sequence code-division multiple-access systems operating in the presence of timevarying flat fading channel. The tilne-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. ©2008 IEEE.