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Power packet transferability via symbol propagation matrix
(Kyoto University)
KTH, School of Electrical Engineering and Computer Science (EECS).ORCID iD: 0000-0002-4266-6746
(Kyoto University)
2018 (English)In: Proceedings of the Royal Society. Mathematical, Physical and Engineering Sciences, ISSN 1364-5021, E-ISSN 1471-2946, Vol. 474, no 2213, article id 20170552Article in journal (Refereed) Published
Abstract [en]

A power packet is a unit of electric power composed of a power pulse and an information tag. In Shannon’s information theory, messages are represented by symbol sequences in a digitized manner. Referring to this formulation, we define symbols in power packetization as a minimum unit of power transferred by a tagged pulse. Here, power is digitized and quantized. In this paper, we consider packetized power in networks for a finite duration, giving symbols and their energies to the networks. A network structure is defined using a graph whose nodes represent routers, sources and destinations. First, we introduce the concept of a symbol propagation matrix (SPM) in which symbols are transferred at links during unit times. Packetized power is described as a network flow in a spatio-temporal structure. Then, we study the problem of selecting an SPM in terms of transferability, that is, the possibility to represent given energies at sources and destinations during the finite duration. To select an SPM, we consider a network flow problem of packetized power. The problem is formulated as an M-convex submodular flow problem which is a solvable generalization of the minimum cost flow problem. Finally, through examples, we verify that this formulation provides reasonable packetized power.

Place, publisher, year, edition, pages
Royal Society Publishing , 2018. Vol. 474, no 2213, article id 20170552
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-228464DOI: 10.1098/rspa.2017.0552ISI: 000433498800003Scopus ID: 2-s2.0-85047560728OAI: oai:DiVA.org:kth-228464DiVA, id: diva2:1209910
Note

QC 20180612

Available from: 2018-05-24 Created: 2018-05-24 Last updated: 2018-06-19Bibliographically approved

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The full text will be freely available from 2019-05-17 16:34
Available from 2019-05-17 16:34

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Maki, Atsuto

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