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Comparison of downlink and uplink MC-DS-CDMA sensitivity to carrier frequency offsets
IEEE VTS 53rd Vehicular Technology Conference, Spring 2001. Proceedings (Cat. No.01CH37202)
In this paper, we study the sensitivity of uplink and downlink MC-DS-CDMA to carrier frequency offsets, assuming orthogonal spreading sequences. For both uplink and downlink MC-DS-CDMA, we show that the performance rapidly degrades for an increasing ratio of maximum frequency offset to carrier spacing. We point out that the degradation in the uplink is larger than in the downlink, because only the former is affected by multiuser interference. For a given (small) ratio of maximum frequencydoi:10.1109/vetecs.2001.944983 fatcat:cddwwyrchvhzvfas256lgr72oy