Sökning: L773:1229 2370 OR L773:1976 5541 >
Real-Time Communica...
Real-Time Communication Systems based on Taut Strings
-
- Setterqvist, Eric, 1980- (författare)
- Linköpings universitet,Matematik och tillämpad matematik,Tekniska fakulteten,Univ Vienna, Austria
-
- Forchheimer, Robert, 1948- (författare)
- Linköpings universitet,Informationskodning,Tekniska fakulteten
-
(creator_code:org_t)
- IEEE, 2018
- 2018
- Engelska.
-
Ingår i: Journal of Communications and Networks. - : IEEE. - 1229-2370 .- 1976-5541. ; 20:2, s. 207-218
- Relaterad länk:
-
https://liu.diva-por... (primary) (Raw object)
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- We consider buffered real-time communication over channels with time-dependent capacities which are known in advance. The real-time constraint is imposed in terms of limited transmission time between sender and receiver. For a network consisting of a single channel it is shown that there is a coding rate strategy, geometrically characterized as a taut string, which minimizes the average distortion with respect to all convex distortionrate functions. Utilizing the taut string characterization further, an algorithm that computes the optimal coding rate strategy is provided. We then consider more general networks with several connected channels in parallel or series with intermediate buffers. It is shown that also for these networks there is a coding rate strategy, geometrically characterized as a taut string, which minimizes the average distortion with respect to all convex distortion-rate functions. The optimal offline strategy provides a benchmark for the evaluation of different coding rate strategies. Further, it guides us in the construction of a simple but rather efficient strategy for channels in the online setting which alternates between a good and a bad state.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Buffers; distortion; real-time systems; source coding; taut string
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas