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International Journal of Advanced Engineering, Management and Science


Implementation of Direct Sequence Spread Spectrum Communication System Using FPGA

( Vol-3,Issue-5,May 2017 )

Author(s): R.Prabhu, R.Nagarajan, N.Karthick, S.Suresh



Total View : 745
Downloads : 28
Page No: 488-496
ijaems crossref doiDOI: 10.24001/ijaems.3.5.13

Keywords:

Bit Error Rates (BER), Field Programmable Gate Array (FPGA), Direct Sequence Spread Spectrum (DSSS), Pseudo Noise (PN) and Spread Spectrum (SS).

Abstract:

This paper presents the designed and implementation of spread spectrum technology for data transfer to overcome the interference problems associated with narrow band, very high frequency and ultra high frequency data transfer systems. The spread spectrum communication is used to reduce jamming of communication and provides a heightened secure communication. In this paper, the design and analyzes are implemented by Field Programmable Gate Array (FPGA) for baseband spread spectrum communication system using Pseudo Noise Sequences (PNS) for spreading digital data. The sequence generator and direct sequence spread spectrum (DSSS) for a single user is implemented in a FPGA module. The generated pseudo noise sequences are investigated for autocorrelation, cross correlation and balance properties. The bit error rates performance of the system is evaluated in multiuser environment under AWGN and reveals that, the DSSS system using pseudo noise sequences as spreading sequences significantly outperforms for the conventional PN sequences system

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