Flexible transmission scheme for 4G wireless systems with multiple antennas

  • Authors:
  • François Horlin;Frederik Petré;Eduardo Lopez-Estraviz;Frederik Naessens;Liesbet Van der Perre

  • Affiliations:
  • Wireless Research, Interuniversity Micro-Electronics Center (IMEC), Kapeldreef, Leuven, Belgium;Wireless Research, Interuniversity Micro-Electronics Center (IMEC), Kapeldreef, Leuven, Belgium;Wireless Research, Interuniversity Micro-Electronics Center (IMEC), Kapeldreef, Leuven, Belgium;Wireless Research, Interuniversity Micro-Electronics Center (IMEC), Kapeldreef, Leuven, Belgium;Wireless Research, Interuniversity Micro-Electronics Center (IMEC), Kapeldreef, Leuven, Belgium

  • Venue:
  • EURASIP Journal on Wireless Communications and Networking
  • Year:
  • 2005

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Abstract

New air interfaces are currently being developed to meet the high requirements of the emerging wireless communication systems. In this context, the combinations of the multicarrier (MC) and spread-spectrum (SS) technologies are promising candidates. In this paper, we propose a generic transmission scheme that allows to instantiate all the combinations of orthogonal frequency-division multiplexing (OFDM) and cyclic-prefixed single-carrier (SC) modulations with direct-sequence code-division multiple access (DS-CDMA). The generic transmission scheme is extended to integrate the space-division multiplexing (SDM) and the orthogonal space-time block coding (STBC). Based on a generalized matrix model, the linear frequency-domain minimum mean square error (MMSE) joint detector is derived. A mode selection strategy for up-and downlink is advised that efficiently trades off the cost of the mobile terminal and the achieved performance of a high-mobility cellular system. It is demonstrated that an adaptive transceiver that supports the proposed communication modes is necessary to track the changing communication conditions.