Implementation and Bit Error Rate analysis of BPSK Modulation and Demodulation Technique using MATLAB

  ijett-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2013 by IJETT Journal
Volume-4 Issue-9                      
Year of Publication : 2013
Authors : G.Tharakanatha , SK. Mahaboob kamal basha , Vijay Bhaskar chanda , I.Hemalatha


G.Tharakanatha , SK. Mahaboob kamal basha , Vijay Bhaskar chanda , I.Hemalatha. "Implementation and Bit Error Rate analysis of BPSK Modulation and Demodulation Technique using MATLAB ". International Journal of Engineering Trends and Technology (IJETT). V4(9):4010-4014 Sep 2013. ISSN:2231-5381. published by seventh sense research group.


Th is paper presents the theoretical background of digital modulation and evaluate the performance of BPSK system with respect to Bit error Rate and finally implement Binary Phase shift Keying modulation technique in MATLAB. The main objective of any communication system is to receive the transmitted data accurately. There are lot digital modulation techniques that are well flouris hed in the communications field , selection of a suitable modulation technique for an application depends on many factors like Bit error rate, data rate, design complexity etc., one of the modulation technique s that is used in many areas of applications is the BPSK modulation. It is widely used due to its low BER and simplicity in design when compared to other modulation techniques. The BER for BPSK is performed using Matlab Graphical User Interface tool i.e., BERTool. The modulated signal is produced by modulating a carrier according to the binary code. The binary code taken here is the Gold code sequence. Such modulated signal is transmitted through AWGN channel. The resulting noisy modulated signal is demodulated using the BPSK demodulation technique. The complete system simulation s are carried out in MATLAB R2008 a and the same will be verified using Matlab Simulink environment.


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AWGN, BER, BERTool BPSK, Gold Code Sequence , GUI, Matlab, Simulink