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Neural approximation of open-loop feedback rate control in satellite networks


, : Neural approximation of open-loop feedback rate control in satellite networks. IEEE Transactions on Neural Networks 16(5): 1195-1211

A resource allocation problem for a satellite network is considered, where variations of fading conditions are added to those of traffic load. Since the capacity of the system is finite and divided in finite discrete portions, the resource allocation problem reveals to be a discrete stochastic programming one, which is typically NP-Hard. In practice, a good approximation of the optimal solution could be obtained through the adoption of a closed-form expression of the performance measure in steady-state conditions. Once we have summarized the drawbacks of such optimization strategy, we address two novel optimization approaches. The first one derives from Gokbayrak and Cassandras and is based on the minimization over the discrete constraint set using an estimate of the gradient, obtained through a "relaxed continuous extension" of the performance measure. The computation of the gradient estimation is based on infinitesimal perturbation analysis (IPA). Neither closed forms of the performance measures, nor additional feedbacks concerning the state of the system and very mild assumptions about the stochastic environment are requested. The second one is the main contribution of the present work, and is based on an open-loop feedback control (OLFC) strategy, aimed at providing optimal reallocation strategies as functions of the state of the network. The optimization approach leads us to a functional optimization problem, and we investigate the adoption of a neural network-based technique, in order to approximate its solution. As is shown in the simulation results, we obtain near-optimal reallocation strategies with a small real time computational effort and avoid the suboptimal transient periods introduced by the IPA gradient descent algorithm.

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Accession: 049668872

PMID: 16252826

DOI: 10.1109/TNN.2005.853424

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Prieur, F.; Castells, J.; Benoit, H.; Busso, T.; Geyssant, A.; Denis, C., 1996: Reliability of measuring maximum oxygen consumption during exercise in a hyperoxic environment. Archives of Physiology & Biochemistry 104(4): D75-D76

Brito, R. C.; Lima, D.; Silva, M. C.; Impagliazzo, S. P.; Costa, L. M.; Calixto, C. C.; Carvalho, R. O., 1996: Education in health Week of prevention on AIDS An experience of integration University X Community. ELEVENTH INTERNATIONAL CONFERENCE ON AIDS Eleventh International Conference on AIDS, Vol Two One world: One hope : 334

Puzzolo, D; La-Fauci, Ma; Micali, A; Putorti, G; Arco, A., 1984: The choroid in the eye of the eel (Anguilla anguilla). Experientia 5, 40(9): 955-956

Gombos, F.; Serpico, R., 1985: AIDS and the dentist. The problem of early diagnosis and prevention. Archivio Stomatologico 26(4): 399-414

Tovey G.H., 1971: Survey of blood grouping by multi channel autoanalyzer of more than 200000 blood samples. Stampfli, K (Ed ) Bibliotheca Heamatologica No 38, Part Ii Organization And Technical Problems Of Transfusion Proceedings Of The 12th Congress Moscow, Ussr, Aug 17-23, 1969 Xxvi+883p Illus S Karger: Basel, Switzerland; New York, N Y , U S A 111-112

Miranda Colin, S., 1967: Genetic infiltration between Phaseolus coccineus and Phaseolus vulgaris. Bean forms intermediate in their morphological characters between P. vulgaris and P. coccineus occur in the wild state and are cultivated in some mountainous regions of Mexico. A detailed morphological study and artificial crosses confirmed the hy...

Videau, C.; Partensky, F., 1990: Variability in the growth characteristics of Gymnodinium cf. nagasakiense (Dinophyceae) and its consequences for the determination of in situ growth rates. We tested the applicability of McDuff & Chisholm's (1982) method for calculating the specific growth rate of phytoplankton populations to the naked dinoflagellate Gymnodinium cf. nagasakiense Takayama et Adachi (ex Gyrodinium aureolum Hul...

Berman, S.M.; Kim, R.C.; Haghighat, D.; Mulligan, M.E.; Fierer, J.; Wyle, F.C., 1994: Mycobacterium genavense infection presenting as a solitary brain mass in a patient with AIDS: case report and review. Patients with AIDS are prone to developing infections with opportunistic pathogens. Recently, a new mycobacterium, Mycobacterium genavense, has been found to cause infection in patients with AIDS. Previously published reports indicate that patient...

Henderson, Alan; Emmerson, Bryan T.; Bailey, Neville L.; Pond, Susan M., 1993: Colchicine overdose in 6 patients Prospects for prevention and therapy. Drug Investigation 6(2): 114-117

Thawley, Dg; Johnson, Me1; Solorzano, Rf1; Wright, Jco, 1982: Pseudorabies virus microimmunodiffusion test: validity determinations Sows, piglets. Proceedings of annual meeting American Association of Veterinary Laboratory Diagnosticians: 5th) 167-172