Fast Downloading of Large Files over Fading Wireless Channels

Authors:
Enzo Baccarelli;Mauro Biagi;Nicola Cordeschi;Cristian Pelizzoni;Roberto Sabella
Affiliations:
University of Rome "La Sapienza", Italy;University of Rome "La Sapienza", Italy;University of Rome "La Sapienza", Italy;University of Rome "La Sapienza", Italy;Ericsson Lab, Italy
Venue:
WOWMOM '06 Proceedings of the 2006 International Symposium on on World of Wireless, Mobile and Multimedia Networks
Year:
2006

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Abstract

In this contribution, the problem of download time minimization, by considering channel state, is solved for application scenario where the downlink channel is slotted and continuous-state, while the resulting conveyed throughput is measured by any desired increasing concave rate-function. Specifically, the optimal energy-allocation policy minimizing the download-time is found and its performance is compared against that of a basic On-Off type heuristic scheduler for some Rayleigh-faded multi-antenna downloading systems of practical interest.