Article

Article title THE ALGORITHM IS BASED ON MIMO-OFDM TECHNOLOGY FOR THE REALIZATION OF DIGITAL HYDROACOUSTIC COMMUNICATION CHANNEL
Authors V.P. Fedosov, A.A. Legin, A.V. Lomakina
Section SECTION IV. RADIO ENGINEERING, TELECOMMUNICATIONS AND ACOUSTICS
Month, Year 07, 2015 @en
Index UDC 621.396
DOI
Abstract To date, the active development of technology and the appearance of powerful instruments for digital signal processing has resulted to the fact that wireless communication technologies are becoming more widely used in various fields. Due to the growing popularity of wireless technologies to them increased requirements for increasing bandwidth and reducing the likelihood of errors in the transmitted message. Solve these problems allows the use of processing techniques space-time signals. The purpose of this article is to find methods and algorithms for solving the problem of increasing capacity and maintenance of wireless speaker channel in a multipath propagation, using technologies such as MIMO and OFDM. MIMO technology is used for underwater acoustic communications recently to increase the data rate for channels with bandwidth – limited. In this article we will discuss methods of implementing the acoustic communication channel based on the spatio-temporal signals where spatial multiplexing by using technology OFDM. The article presents algorithms for wireless data communication for underwater acoustic communications channel which have high spectral efficiency. For their analyzing is simulated bit error rate depending on the given signal / noise ratio (SNR). Thus, for a 64 kHz bandwidth signal bit-error probability when SNR = 10 dB is equal to 10-3. The simulation results show that MIMO OFDM is a promising technology for high-speed data transmission in underwater acoustic channels.

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Keywords Antenna array (AA); MIMO (Multiple Input Multiple Output); OFDM (Orthogonal Frequency Division Multiplexing); acoustic communication; wireless communication; capacity; Bit Error Rate (BER).
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