EC6501 Digital Communication previous year question papers

EC6501 Digital Communication previous year question papers


B.E- ECE department,third year 5th semester EC6501 Digital Communication previous year question papers for the regulation 2013.

(NOTE:This is the only website,where you can download the previous year Anna university question papers in PDF format with good quality and with out any water marks.You can download the files in a single click and no more Re-directs)



OBJECTIVES:

  • To know the principles of sampling & quantization
  • To study the various waveform coding schemes
  • To learn the various baseband transmission schemes
  • To understand the various Band pass signaling schemes
  • To know the fundamentals of channel coding

UNIT I SAMPLING & QUANTIZATION 

Low pass sampling – Aliasing- Signal Reconstruction-Quantization – Uniform & non-uniform quantization – quantization noise – Logarithmic Companding of speech signal- PCM – TDM

UNIT II WAVEFORM CODING 

Prediction filtering and DPCM – Delta Modulation – ADPCM & ADM principles-Linear Predictive Coding

UNIT III BASE BAND TRANSMISSION 

Properties of Line codes- Power Spectral Density of Unipolar / Polar RZ & NRZ – Bipolar NRZ – Manchester- ISI – Nyquist criterion for distortionless transmission – Pulse shaping – Correlative coding – Mary schemes – Eye pattern – Equalization

UNIT IV DIGITAL MODULATION SCHEME 

Geometric Representation of signals – Generation, detection, PSD & BER of Coherent BPSK, BFSK & QPSK – QAM – Carrier Synchronization – structure of Non-coherent Receivers – Principle of DPSK.

UNIT V ERROR CONTROL CODING 

Channel coding theorem – Linear Block codes – Hamming codes – Cyclic codes – Convolutional codes – Vitterbi Decoder

 



EC6501 Digital Communication previous year question papers for the regulation 2013

EC6501 Digital Communication Nov/Dec 2017 question paper download

EC6501 Digital Communication Apr/May 2017 question paper download

EC6501 Digital Communication Nov/Dec 2016 question paper download

EC6501 Digital Communication May/June 2016 question paper download

EC6501 Digital Communication Nov/Dec 2015 question paper download



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