Pre-equalization Techniques for Downlink and Uplink TDD MC-CDMA Systems

Authors:
P. Bisaglia;L. Sanguinetti;M. Morelli;N. Benvenuto;S. Pupolin
Affiliations:
Department of Information Engineering, University of Padova, Padova, Italy 35131;Department of Information Engineering, University of Pisa, Pisa, Italy 56122;Department of Information Engineering, University of Pisa, Pisa, Italy 56122;Department of Information Engineering, University of Padova, Padova, Italy 35131;Department of Information Engineering, University of Padova, Padova, Italy 35131
Venue:
Wireless Personal Communications: An International Journal
Year:
2005

Citing 2
Cited 1

Multi-Carrier and Spread Spectrum Systems

Multi-Carrier and Spread Spectrum Systems
A novel prefiltering technique for downlink transmissions in TDD MC-CDMA systems

IEEE Transactions on Wireless Communications

Two-stage transmitter precoding based on data-driven code-hopping and partial zero forcing beamforming for MC-CDMA communications

IEEE Transactions on Wireless Communications

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Abstract

Time division duplex (TDD) multi carrier-code division multiple access (MC-CDMA) systems have recently been proposed as potential candidates for next generation (4G) technology. In order to mitigate multiple access interference, in this paper we investigate pre-equalization schemes for both downlink and uplink transmissions, the former also in a multiple transmit antenna scenario. In particular, new pre-equalizer techniques are introduced and complexity issues addressed. Numerical results are given to highlight the effectiveness of the proposed schemes with respect to other existing pre-equalizer solutions.