Performance Comparison between DPSK and OQPSK modulation approaches in multi environments channels with Matlab Simulink models
DOI:
https://doi.org/10.31185/ejuow.Vol7.Iss1.112Keywords:
digital modulation, DPSK, Matlab SimulinkAbstract
Phase shift keying modulation approaches are widely used in the communication industry. Differential phase shift keying (DPSK) and Offset Quadrature phase shift keying (OQPSK) schemes are chosen to be investigated is multi environment channels, where both systems are designed using MATLAB Simulink and tested. Cross talk and unity of signals generated from DPSK and OQPSK are examined using Cross-correlation and auto-correlation, respectively. In this research a proposed system included improvement in bit error rate (BER) of both systems in the additive white Gaussian Noise (AWGN) channel, by using the convolutional and block codes, by increasing the ratio of energy in the specular component to the energy in the diffuse component (k) and the diversity order BER in the fading channels will be improved in both systems.
References
[2] Simon, M. K., and Alouini, M. S., Digital Communication over Fading Channels – A Unified Approach to Performance Analysis, 1st Ed., Wiley, 2000.
[3] Lee, P. J., "Computation of the bit error rate of coherent M-ary PSK with Gray code bit mapping", IEEE Trans. Commun., Vol. COM-34, Number 5, pp. 488-491, 1986.
[4] Simon, M. K , Hinedi, S. M., and Lindsey, W. C., Digital Communication Techniques – Signal Design and Detection, Prentice-Hall, 1995.
[5] Dr. J. S. chitode ,"principle of communication", first edition ,2009.
[6] Jyriki T. J. penttinen, "the telecommunication handbook", john wiley,2015.
[7] Jiaxing lin," spacecraft TT&C and information transmission theory and technologies", springer, 2015.
[8] Joyashree Baga, Subhashis Roya, P. K. Duttaa & Subir Kumar Sarkara," Design of a DPSK Modem Using CORDIC Algorithm and Its FPGA Implementation", IETE Journal, 14 Oct 2014.
[9] Miss. Shruti R. Tambakhe, Prof. Ajay P. Thakare," Design and Simulation of Mathematical Models Using Mixed HDL Platform", International Journal of Application or Innovation in Engineering & Management (IJAIEM), Volume 3, Issue 3, March 2014. [10] Yash Vardhan Varshney, Anil Kumar Sharma," Comparative Analysis of OQPSK and MSK Based Zigbee Transceiver Using MATLAB", International Journal of Advanced Research in Computer Science and Software Engineering, Volume 3, Issue 6, June 2013.
[11] Filip Zaplata," Advanced Algorithms for Satellite Communication Signal Processing", Doctoral Thesis ,2015.
[12] Best, R. E.; Kuznetsov, N. V.; Leonov, G. A.; Yuldashev, M. V.; Yuldashev, R. V. "Tutorial on dynamic analysis of the Costas loop". Annual Reviews in Control. arXiv:1511.04435.doi:10.1016/j.arcontrol..08.003. 2016.
