Block Interleaved Frequency Division Multiple Access for Power Efficiency, Robustness, Flexibility and Scalability.

Tommy Svensson , Chalmers U. of Technology,
Tobias Frank, TU Darmstadt,
Thomas Eriksson , Chalmers U. of Technology,
Daniel Aronsson , Uppsala University, and
Mikael Sternad , Uppsala University, and
Anja Klein , TU Darmstadt.

EURASIP Journal on Wireless Communications and Networking,
Special Issue on 3GPP LTE and LTE Advanced, vol. 2009, Article ID 720973.

Abstract:

Future wireless systems need to operate in widely different deployment scenarios and carry traffic with widely varying characteristics. As part of the ITU-R IMT-Advanced capable WINNER system concept, we have developed a novel multiple access concept providing modes for both transmissions adapting to the small scale fading as well as robust diversity based transmissions.

This paper presents the power efficient, flexible and scalable multiple access scheme for robust uplink transmis-sion denoted as Block Interleaved Frequency Division Multiple Access (B-IFDMA). The B-IFDMA scheme is a generalization of the Single-Carrier Frequency Division Multiple Access (SC-FDMA) scheme in 3GPP Long Term Evolution (LTE) Release 8.

We show that in an IMT-Advanced scenario B-IFDMA provides a good trade-off between large frequency-diversity, also when realistic channel estimation performance is regarded, potential power savings through optimal high amplifier operation and sleep mode gains. The scheme also provides robustness to carrier frequency-offsets and Doppler spread.

Related publications:

Conference Paper version, IST Mobile and Wireless Summit 2007.

WINNER II System Concept, IEEE Communications Magazine 2009.

Proc. of the IEEE (Dec. 2007) invited paper on adaptive transmission in beyond-3G wireless systems.

Channel estimation results relevant for the discussed transmission schemes.

Resource allocation and control signaling in the WINNER flexible MAC concept (VTC 2008-Fall).

Earlier MAC framework from WINNER phase 1 described at VTC 2006-Fall.

IST Mobile Summit 2005 paper that describes adaptive TDMA/OFDMA frequency adaptive downlink and uplink transmission.

Source:

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