New PAPR-preserving mapping methods for single-carrier FDMA with space-frequency block codes
IEEE Transactions on Wireless Communications
EURASIP Journal on Wireless Communications and Networking - 3GPP LTE and LTE Advanced
Synchronization sensitivity of block-IFDMA systems
IEEE Transactions on Wireless Communications
Power allocation in MMSE relaying over frequency-selective Rayleigh fading channels
IEEE Transactions on Communications
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Future mobile radio systems must fulfill challenging requirements. Some requirements are met by single-carrier-based multiple access (MA) schemes such as CDMA and others by multi-carrier-based MA schemes like OFDMA. MA schemes integrating the characteristics of both are receiving more and more attention. In this article, candidate MA schemes based on the idea of integration are summarized and classified using a new framework. Moreover, interleaved frequency division multiple access (IFDMA) is shown to be a scheme that combines the advantages of both CDMA and OFDMA and is a promising candidate MA scheme, especially for non-adaptive transmission in the uplink of future mobile radio systems.