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1 NXP Semiconductors 2 E3S - Supélec Sciences des Systèmes Gif-sur-Yvette

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.

Autor: Romain Couillet - Merouane Debbah -

Fuente: https://hal.archives-ouvertes.fr/


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