NDLI: A novel look at FDE multicarrier and single carrier transmission schemes

Content Provider	IEEE Xplore Digital Library
Author	Valente, D. Cianca, E. Kocian, A. Ruggieri, M. Prasad, R.
Copyright Year	2009
Description	Author affiliation: Center for TeleInFrastruktur (CTIF), Aalborg University, Denmark (Prasad, R.) \|\| Center for TeleInFrastruktur (CTIF)-Italy, University of Rome Tor Vergata, Italy (Valente, D.; Cianca, E.; Kocian, A.; Ruggieri, M.)
Abstract	In this paper, main Single Carrier (SC) and Multicarrier (MC) systems with Frequency Domain Equalization (FDE) are reviewed with the objective to identify key features of the evolution path of air interfaces towards 4G. In particular, this paper shows that the FFT/IFFT operation can be seen as the concatenation of two operations: S/P conversion and spreading. We show that the transmitter of an OFDMA system performs a S/P conversion and a multiplication with specific complex spreading codes. By replacing the orthogonal complex spreading codes of this equivalent OFDMA system, with traditional orthogonal spreading codes that are used in DS-CDMA systems, for instance Walsh-Hadamard codes, we achieve a novel multicode-CDMA system. The comparison of this novel SC transmission scheme with other SC and MC systems shows that the novel SC system has almost the same performance as OFDMA and also similar PAPR. On the other hand, it has a pretty different behavior wrt other SC systems such as IFDMA and DS-CDMA with FDE.
Starting Page	366
Ending Page	369
File Size	164130
Page Count	4
File Format	PDF
ISBN	9781424440665
DOI	10.1109/WIRELESSVITAE.2009.5172475
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-17
Publisher Place	Denmark
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation Wireless LAN Transmitters OFDM Intersymbol interference Peak to average power ratio Frequency conversion Multiaccess communication DSL Frequency domain analysis
Content Type	Text
Resource Type	Article

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