Adaptive algorithm for wireless data transmission (including images) based on SISO system and OFDM technique
| Autor: | A. A. Legin, A. V. Lomakina, V. P. Fedosov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
coding
SISO Adaptive algorithm Computer Networks and Communications Computer science Wireless data transmission Orthogonal frequency-division multiplexing Mechanical Engineering antenna array (AA) Energy Engineering and Power Technology Hardware and Architecture Control and Systems Engineering adaptive algorithm Electronic engineering multipath lcsh:Electrical engineering. Electronics. Nuclear engineering Electrical and Electronic Engineering lcsh:TK1-9971 OFDM Computer Science::Information Theory |
| Zdroj: | Serbian Journal of Electrical Engineering, Vol 15, Iss 3, Pp 353-364 (2018) |
| ISSN: | 2217-7183 1451-4869 |
| DOI: | 10.2298/sjee1803353f |
| Popis: | The efficiency of wireless systems to transmit information in a complex interference situation is one of the main indicators of the effectiveness of the system, which can be characterized by the probability of an error in the transmitted message. This characteristic depends on the interference situation of the communication channel and the nature of the signals propagation in the medium. If the medium has a multi-path character, the signal interferes with the receiving antenna, causing signal fading. So the developer of wireless communication devices is faced with the task of increasing the noise immunity of the system. It can be increased in various ways, for example, by using adaptive processing algorithms for spatio-temporal signals. In this paper we solve the problem of improving noise immunity in wireless communication systems by applying an algorithm of adaptive spatial-temporal signal processing in the receiver based on an adaptive antenna array, which allows spatial filtering under conditions of a complex pattern of signal propagation in a channel with reflections. Calculation of weights for the adaptation algorithm in the article is based on the theory of eigenvalues and vectors of the spatial correlation matrix. |
| Databáze: | OpenAIRE |
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