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Conference Papers Year : 2009

Flexible OFDM schemes for bursty transmissions

Romain Couillet

Abstract

In this paper, -OFDM, a generalization of the OFDM modulation, is proposed to enhance the outage capacity of bursty transmissions. This new flexible modulation scheme is easily implemented and only requires a symbol rotation of angle after the IDFT stage. The induced rotation slides the DFT window and provides frequency diversity in block fading channels. Interestingly, the results show a substantial gain in terms of outage capacity and BER in comparison with classical OFDM modulation schemes. The framework is extended to multiuser/multi-antenna OFDM based standards. Simulations, in the context of 3GPP LTE, called hereafter -LTE, sustain our theoretical claims.
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Dates and versions

hal-00392391 , version 1 (07-06-2009)

Identifiers

  • HAL Id : hal-00392391 , version 1

Cite

Romain Couillet, Merouane Debbah. Flexible OFDM schemes for bursty transmissions. IEEE Wireless Communications and Networking Conference 2009, Apr 2009, Budapest, Hungary. 6 p. ⟨hal-00392391⟩
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