Development of a DSP Prototype for 16-Bit QAM Modulator Using Code Composer Studio for Application in Mobile Communication Systems

SYED ABDUR RAUF MAGRABI

Abstract


As step by step there is increment in mobile telephone users, the bandwidth capacity prerequisite for every user is commonly expanding. Because of this, there is spectral blockage brought about and exceptional upgrades have been taken in the field of mobile communications. Quadrature amplitude modulation (QAM) multilevel modulation can offer an alluring answer for current transmission bandwidth confinement in microcellular systems. The conservative technique of QAM synthesis is analog. This paper is an effort that has been engaged for the untried synthesis of 16-Bit QAM by means of the principle of direct digital synthesis (DDS) with the help of digital signal processor (DSP) TMS320C6713. The synthesized QAM signal has been produced by writing a program in the C-source file of code composer studio (CCS) integrated development environment (IDE). Experimental results for 16-bit QAM modulating sequence are comprised.

Keywords: CCS, DDS, DPS, IDE, QAM

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References


Turner C.L. Recursive discrete-time sinusoidal oscillators, IEEE Signal Process Mag. 2003; 20(3): 103–11p.

Cordesses L. Direct digital synthesis: a tool for periodic wave generation (Part 1), IEEE Signal Process Mag. 2004; 21(4): 50–4p.

Code Composer Studio Getting Started Guide, Literature Number: SPRU509C, November 2001. TPS 2O14-5:55:07 PM 5/172006.

Prasad S.S., Sanyal S.K. A novel technique for the generation of good quality tunable sinusoid based on DDS using digital signal processor, In: Proc. of 2nd IEEE International Conference on Information & Communication Technologies: From Theory to Applications, ICTTA’06, Vol. 1, Damascus, Syria, April 2006, 717–8p.

Sampei S., Kamio Y., Sasaoka H. Field experiments on pilot symbol aided 16-QAM modems for land mobile communications, Proc IEEE VTC. 1992; 2: 852–5p.

Vankka J., Kosunen M., Sanchis I., et al. A multicarrier QAM modulator, IEEE Trans Circuits Syst II. 2000; 47: 1–10p




DOI: https://doi.org/10.37628/ijece.v1i1.151

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