Orthogonal multicarrier CDMA and its detection on frequency‐selective channels
Hikmet Sari · European Transactions on Telecommunications · 2002
Abstract Multicarrier code‐division multiple access (MC‐CDMA) first appeared in the literature in 1993. It combines conventional code‐division multiple access (CDMA) and orthogonal frequency‐division multiplexing (OFDM), and has several variants that depend on how this combination is done. Although there have been a significant number of publications on MC‐CDMA since its introduction, the literature is still very fragmented, and the terminologies used by different authors are inconsistent. In addition, there are also a number of confusions concerning the detection of MC‐CDMA signals on frequency‐selective channels. As an attempt to achieve mis goal, this paper gives a comprehensive review of MC‐CDMA, describes its different variants, and reviews the receiver techniques for orthogonal MC‐CDMA. It also discusses the relative merits of MC‐CDMA and of multicarrier time‐division multiple access (MC‐TDMA) and orthogonal frequency‐division multiple access (OFDMA) which are the two omer multiple access techniques usable in conjunction with multicarrier transmission.