Multi-objective optimization Luby codes based on natural computing
Journal Title: Інформаційно-керуючі системи на залізничному транспорті - Year 2017, Vol 22, Issue 1
Abstract
In modern packet-switched telecommunications networks error correcting coding used at different levels of the Open Systems Interconnection model. At the physical and data link layers to correct and detect errors in packets commonly used classic code constructions with a fixed coding rate (for example, block codes). On the other hand, to restore the whole packets code expedient use codes without fixed encoding rate at the application level. This class of codes are Luby codes that can be used alone or be part of the cascade code constructions. The key feature of these codes is to use the special law of probability distribution in the coding process. Wherein optimization of this distribution according to different objectives depending on the specific application Luby codes can improve their effectiveness. These objectives are redundant, failure rate, probability of failure, computational complexity of coding (decoding). In practice, there is often the need to use Luby codes simultaneously satisfy several objectives. To solve this multi-objective optimization problem an approach based on generalized procedures of natural computing is proposed. The main stages of the proposed approach are presented.
Authors and Affiliations
M. Shtompel
Keywords
Related Articles
- EP ID EP494255
- DOI 10.18664/ikszt.v0i1.95269
- Views 159
- Downloads 0
Synthesis of test tests based on cyclic distinctive sequences
The author on the basis of theoretical generalization and work in the field of test diagnostics, namely the functional approach and the use of automatic models of grid cells, presents a method for the synthesis of testin...
Development of the three-dimensional model of the «trolley frame - electric motor» system for electric locomotive by the SolidWorks software assistance
At the present stage of development of the railway industry, it is necessary to generate and implement progressive solutions in the design of rolling stock in order to increase the traction rolling stock reliability and...
Reception of information signals of systems of railway automatic equipment in the conditions of action of three-component interference
Typical situation in work of paths of signaling of systems of railway automatic equipment is need of reception of signal against the background of additive multicomponent interference. In quality interference component i...
Investigation of electromagnetic transients in a frequency controlled electric drive of switching devices of traction substation transformers
The study proposes the boundary conditions for selecting the capacitance of the converter to ensure the exclusion of the mode of self-oscillation and dangerous overvoltages in controlling the frequency of rotation of the...
Engineering interpretation of function of credibility of additive mix of signal and two-component hindrance
The analytical description of function of credibility for situation when the structural determined signal is accepted against additive two-component Markov hindrance is considered. This expression has rather general char...