Stochastic channel allocation in non-linear environments

Autor:	Giuseppe Baruffa, Fabrizio Frescura, S. Cacopardi, Gianluca Reali
Rok vydání:	2001
Předmět:	Mathematical optimization Channel allocation schemes Computer science business.industry Frequency assignment Frequency allocation Nonlinear system Genetic algorithm Simulated annealing Communications satellite Resource allocation Electrical and Electronic Engineering Telecommunications business
Zdroj:	European Transactions on Telecommunications. 12:67-76
ISSN:	1541-8251 1124-318X
DOI:	10.1002/ett.4460120108
Popis:	In this paper new techniques able to solve the problem of frequency assignment in satellite communications are proposed. Their performance is evaluated in a non-linear environment that models the satellite channel behaviour. The stochastic approach consists in the exploration and validation of new load configurations for the downlink channel Since the carriers have different powers, the complexity of the problem is high. An analytical approach is used for calculating the number and the power of 3 rd order inter-modulation products, which may also be used for higher order contributions. After this, comparisons between classic and stochastic techniques, in terms of computational time and allocation quality, are shown.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b58b572d56dbef5a332c3cd73378b391 https://doi.org/10.1002/ett.4460120108 Zobrazit plný text záznamu Plný text