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INFOCOM
2010
IEEE

Scheduling Heterogeneous Real-Time Traffic over Fading Wireless Channels

9 years 7 months ago
Scheduling Heterogeneous Real-Time Traffic over Fading Wireless Channels
We develop a general approach for designing scheduling policies for real-time traffic over wireless channels. We extend prior work, which characterizes a real-time flow by its traffic pattern, delay bound, timely-throughput requirement, and channel reliability, to allow time-varying channels, allow clients to have different deadlines, and allow for the optional employment of rate adaptation. Thus, our model allow the treatment of more realistic fading channels as well as scenarios with mobile nodes, and the usage of more general transmission strategies. We derive a sufficient condition for a scheduling policy to be feasibility optimal, and thereby establish a class of feasibility optimal policies. We demonstrate the utility of the identified class by deriving a feasibility optimal policy for the scenario with rate adaptation, time-varying channels, and heterogeneous delay bounds. When rate adaptation is not available, we also derive a feasibility optimal policy for timevarying channels...
I-Hong Hou, P. R. Kumar
Added 13 Feb 2011
Updated 13 Feb 2011
Type Journal
Year 2010
Where INFOCOM
Authors I-Hong Hou, P. R. Kumar
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