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QoS-aware adaptation for satellite multimedia broadcasting via hierarchical packet scheduling

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3 Author(s)
Hongfei Du ; SIMON FRASER UNIVERSITY ; Barry G. Evans ; Imrich Chlamtac

With the unique broadcast nature and ubiquitous coverage of satellite networks, the synergy between satellite and terrestrial networks provides opportunities for delivering wideband services to a wide range of audiences over extensive geographical areas. This article concerns the optimization techniques pertinent to packet scheduling to facilitate multimedia content delivery over the satellite with a return channel via a terrestrial network. We propose a novel hierarchical packet scheduling scheme that allocates the resources at different parts of the network in response to network dynamics and link variations while under the system power/resource constraints. Simulations prove that the HPS scheme can effectively improve the end-to-end performance and resource utilization with desirable scalability and fairness features.

Published in:

IEEE Wireless Communications  (Volume:16 ,  Issue: 3 )