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FPGA realisation-based architecture for direction-of-arrival in wireless communication

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  • Chinnadurai Thiripurasundari
  • Vembu Sumathy

Abstract

A signal processing technique used in sensor arrays for directional signal transmission or reception is known as beamforming. By combining elements in a phased array beamforming is achieved. This is done in such a way that, signals at particular angles experience constructive interference while others experience destructive interference. To detect and calculate the signal-of-interest at the output of a sensor array by means of the most desirable spatial filtering and interference rejection, adaptive beamforming is used. But, before beamforming technique, the directions of desired users and undesired users or interferes must be prevailed using a direction-of-arrival (DOA) estimation algorithm. This paper presents FPGA realisation-based design of a smart antenna system based on DOA estimation algorithm using Xilinx system generator (XSG). MUSIC algorithm is considered in this paper to identify the DOA of the input signals incident on the sensor array comprising the smart antenna system. The MUSIC algorithm is a simple and effective eigen structure method of DOA estimation. With this approach, the results of proposed simulated FPGA design of a smart antenna system shows effective hardware utilisation.

Suggested Citation

  • Chinnadurai Thiripurasundari & Vembu Sumathy, 2017. "FPGA realisation-based architecture for direction-of-arrival in wireless communication," International Journal of Networking and Virtual Organisations, Inderscience Enterprises Ltd, vol. 17(2/3), pages 137-148.
    • Handle: RePEc:ids:ijnvor:v:17:y:2017:i:2/3:p:137-148
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