Temat: decentralized control - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Decentralized Variable Structure Tracking for Systems With Time-Domain Dominance
Autorzy:: Balluchi, A.
Bicchi, A.
Powiązania:: https://bibliotekanauki.pl/articles/908303.pdf
Data publikacji:: 1999
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: warunek dominujący
sterowanie
sterowanie rozproszone
dominance conditions
decentralized control
robust control
variables structure control (VSC)
Opis:: In this paper, we consider the design of tracking controllers for linear MIMO systems described by an input-output model. The presence of known 'weak' interactions among SISO or MIMO subsystems may allow the designer to achieve objectives by using independent controllers of lower complexity than are necessary in general (control decentralization problem). Sufficient conditions for asymptotic tracking employing decentralized variable structure techniques are derived. The condition is shown to be closely related to (and in a sense, a time-domain counterpart of) dominance criteria used in frequency-domain techniques, as they have developed out of Rosenbrock's original diagonal dominance concept. The synthesis of a decentralized variable-structure controller for asymptotic tracking is illustrated for systems obeying some conditions on their nominal relative degrees.
Źródło:: International Journal of Applied Mathematics and Computer Science; 1999, 9, 2; 265-291
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Nash equilibrium design and price-based coordination in hierarchical systems
Autorzy:: Karpowicz, M. P.
Powiązania:: https://bibliotekanauki.pl/articles/331251.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: równowaga Nasha
system hierarchiczny
sterowanie rozproszone
Nash equilibrium
coordination in hierarchical systems
decentralized control
asymmetric information
Opis:: This paper deals with the problem of designing Nash equilibrium points in noncooperative games in which agents anticipate values of Lagrange multipliers coordinating their payoff functions. The addressed model of agents' interactions, referred to as the price-anticipation game, is studied within the framework of coordination and mechanism design theory for hierarchical systems. Sufficient conditions are formulated for Nash implementation of a regular and isolated solution to a coordination problem. An equilibrium design procedure is proposed and applied as an analytic tool in a study of mechanism design games. In the setting considered the well-known fact is demonstrated that gains from reaching a desired solution to a coordination problem in a Nash equilibrium point need not balance the overall costs of its implementation. However, it is also demonstrated how these costs can be distributed among the agents and related to the particular organization of interactions in the system. Finally, application of the developed framework in the field of Internet traffic engineering is presented.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2012, 22, 4; 951-969
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Joint queue-perturbed and weakly coupled power control for wireless backbone networks
Autorzy:: Olwal, T. O.
Djouani, K.
Kogeda, O. P.
van Wyk, B. J.
Powiązania:: https://bibliotekanauki.pl/articles/330956.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: sterowanie mocą
sterowanie rozproszone
sieć szkieletowa
sterowanie optymalne
decentralized power control
singular perturbation theory
weak coupling theory
wireless backbone networks
optimal control theory
Opis:: Wireless Backbone Networks (WBNs) equipped with Multi-Radio Multi-Channel (MRMC) configurations do experience power control problems such as the inter-channel and co-channel interference, high energy consumption at multiple queues and unscalable network connectivity. Such network problems can be conveniently modelled using the theory of queue perturbation in the multiple queue systems and also as a weak coupling in a multiple channel wireless network. Consequently, this paper proposes a queue perturbation and weakly coupled based power control approach for WBNs. The ultimate objectives are to increase energy efficiency and the overall network capacity. In order to achieve this objective, a Markov chain model is first presented to describe the behaviour of the steady state probability distribution of the queue energy and buffer states. The singular perturbation parameter is approximated from the coefficients of the Taylor series expansion of the probability distribution. The impact of such queue perturbations on the transmission probability, given some transmission power values, is also analysed. Secondly, the inter-channel interference is modelled as a weakly coupled wireless system. Thirdly, Nash differential games are applied to derive optimal power control signals for each user subject to power constraints at each node. Finally, analytical models and numerical examples show the efficacy of the proposed model in solving power control problems in WBNs.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2012, 22, 3; 749-764
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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