Sfoglia per Soggetto "Frequency division multiple access"

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Downlink mobile OFDMA resource allocation with minimum user rate requests

Stefanatos, S.; Papathanasiou, C.; Dimitriou, N. (2009)

The problem of resource allocation (RA) in a downlink OFDMA system with minimum user rate requests is examined under the realistic scenario of partial (imperfect) channel state information (CSI) at the base station. The ...
On the use of distributed directive antenna arrays in mobile OFDMA networks

Papathanasiou, C.; Dimitriou, N.; Samios, T.; Tassiulas, L. (2011)

Distributed Omni Antenna Systems (OASs) have been proposed to increase the capacity of Broadband Wireless Access (BWA) systems. We investigate the extension of such systems by employing distributed Directive Antenna Arrays ...