- Research Article
- Open access
- Published:
Outage Performance of Flexible OFDM Schemes in Packet-Switched Transmissions
EURASIP Journal on Advances in Signal Processing volume 2009, Article number: 698417 (2009)
Abstract
α-OFDM, a generalization of the OFDM modulation, is proposed. This new modulation enhances the outage capacity performance of bursty communications. The α-OFDM scheme is easily implementable as it only requires an additional time symbol rotation after the IDFT stage and a subsequent phase rotation of the cyclic prefix. The physical effect of the induced rotation is to slide the DFT window over the frequency spectrum. When successively used with different angles α at the symbol rate, α-OFDM provides frequency diversity in block fading channels. Interestingly, simulation results show a substantial gain in terms of outage capacity and outage BER in comparison with classical OFDM modulation schemes. The framework is extended to multiantenna and multicellular OFDM-based standards. Practical simulations, in the context of 3GPP-LTE, called hereafter α-LTE, sustain our theoretical claims.
Publisher note
To access the full article, please see PDF.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
About this article
Cite this article
Couillet, R., Debbah, M. Outage Performance of Flexible OFDM Schemes in Packet-Switched Transmissions. EURASIP J. Adv. Signal Process. 2009, 698417 (2009). https://doi.org/10.1155/2009/698417
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1155/2009/698417