Which modulation requires more bandwidth?

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Question:
Which modulation requires more bandwidth?

1.QPSK

2.OQPSK

3.BPSK

4.BFSK

Posted Date:-2022-05-22 07:25:07

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  1. In polarization division technique ______ polarization is used.
  2. In soft decision approach 100 means?
  3. Adding improvement to the signal subset choice by starting with the densest possible lattice for the space is called as
  4. Average effective information is obtained by
  5. Channelization characterized by orthogonal spectra is called as
  6. Choosing a closely packed signal subset from any regular lattice or array of candidate points is called as
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  10. Entropy is the measure of
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  12. For a error free channel, conditional probability should be
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  14. Greater the redundancy lesser is the bandwidth expansion.
  15. How can the throughput of the system be increased?
  16. In double side band spectrum which side-band is called as inverted side-band?
  17. In MFSK, R/W
  18. In MPSK, R/W
  19. In soft decision approach 0 represents
  20. In soft decision approach what does -127 mean?
  21. In which technique spot beam antennas are used to point the radio signals in different directions?
  22. QAM is a combination of
  23. QPSK amplitude modulates
  24. QPSK is a composite of
  25. The bandwidth efficiency increases as M increases.
  26. The bandwidth efficiency of MFSK is
  27. The bandwidth efficiency of QFSK is _______ that of BFSK.
  28. The capacity relationship is given by
  29. The IF transmission bandwidth of MFSK is
  30. The inter leaver connected between the two decoders is used to
  31. The minimum nyquist bandwidth needed for baseband transmission of Rs symbols per second is
  32. The mixing and filtering of DSB removes
  33. The orbital period of communication satellites is _______ as that of earth’s rotational period.
  34. The primary communication resource is
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  38. Trellis coded modulation uses
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  40. Turbo codes are
  41. Which modulation has lower side lobe levels?
  42. Which modulation is selected for power limited system?
  43. Which modulation is spectrally more efficient?
  44. Which modulation is the most efficient one?
  45. Which modulation requires more bandwidth?
  46. Which modulation scheme uses nonlinear transponders?
  47. Which modulation spectrum has narrow main lobe?
  48. Which parameter is called as Shannon limit?
  49. Which refers to the presence of error correction coding scheme?
  50. Which technique can be used for bandwidth reduction?
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