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Title: Variable Rate Transmission Schemes for CI/MC-CDMA System
Authors: Mukherjee, M.
Kumar, P.
Issue Date: May-2012
Publisher: IEEE Xplore
Abstract: In this paper, two multirate transmission schemes have been proposed for carrier interferometry multicarrier code division multiple access (CI/MC-CDMA) system. System models for wide range of data rates are discussed based on orthogonal property of CI codes of any length. Non-contiguous CI codes have been introduced for multirate CI/MC-CDMA. Advantage of frequency diversity in non-contiguous allocation improves the performance of variable rate system over frequency selective channel. It is shown that non-contiguous allocation allows more number of very high data rate users compared to contiguous allocation with some increased complexity at iterative receiver.
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