A Subspace Method for Blind Channel Identification in Multi-Carrier CDMA Systems
Blind channel estimation in Multi-Carrier CDMA systems using sub space decomposition techniques is considered. We demonstrate that the performance of these techniques is severely limited by the number of users and show that this limitation is considerabily reduced if we use signature codes that span several transmitted symbols (log codes). Finally, we propose a channel identification algorithm specifically devel oped for MC-CDMA systems using long codes.
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