Flexible OFDM schemes for bursty transmissions

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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https://hal-supelec.archives-ouvertes.fr/hal-00392391
Contributor : Samir Medina Perlaza <>
Submitted on : Sunday, June 7, 2009 - 9:14:38 PM
Last modification on : Monday, December 17, 2018 - 2:28:06 PM
Long-term archiving on : Friday, June 11, 2010 - 12:25:45 AM

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  • HAL Id : hal-00392391, version 1

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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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