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On delay in real-time streaming communication systems

Author(s)
Yao, Huan; Kochman, Yuval; Wornell, Gregory W.
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Abstract
We focus on the problem of real-time streaming over a blockage channel with long feedback delay, as arises in real-time satellite communication from a comm-on-the-move (COTM) terminal. For this problem, we introduce a definition of delay that captures the real-time nature of the problem, which we show grows at least as fast as O(log(k)) for memoryless channels, where k corresponds to the number of packets in the transmission. Moreover, we show that a tradeoff exists between this delay and a natural notion of throughput that captures the bandwidth requirements of the communication. We develop and analyze an efficient “multi-burst” transmission protocol for achieving good delay-throughput tradeoffs within this framework, which we show can be augmented with coding for additional performance gains. Simulations validate the new protocols on channels with and without memory.
Date issued
2011-02
URI
http://hdl.handle.net/1721.1/73567
Department
Lincoln Laboratory; Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal
Proceedings of the 48th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2010
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Wornell, Gregory W. et al. "On delay in real-time streaming communication systems." Proceedings of the 48th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2010: 420-426. © 2010 IEEE.
Version: Final published version
ISBN
978-1-4244-8215-3

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