Which of the following multiple accesstechniques are used by second generation cellularsystems?a) FDMA/FDD and TDMA/FDDb) TDMA/FDD and CDMA/FDDc) FDMA/FDD and CDMA/FDDd) FDMA/FDD only

Answered: of the following multiple access…

Engineering

Electrical Engineering

of the following multiple access techniques are used by second generation cellular systems?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter17: Commercial And Industrial Air-conditioning Control Systems

Section: Chapter Questions

Problem 25RQ

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Concept explainers

HVDC

HVDC stands for high voltage direct current in the electric power transmission system. The high voltage direct current system uses direct current (DC) for the transmission of electrical power through transmission lines in contrast with the alternating current that is the AC system. The HVDC is used to transmit bulk power point-to-point through long distances transmission lines. Power is rapidly transferred because the efficiency of transmission lines is greatly increased over long distances due to HVDC lines.

Question

Which of the following multiple access
techniques are used by second generation cellular
systems?
a) FDMA/FDD and TDMA/FDD
b) TDMA/FDD and CDMA/FDD
c) FDMA/FDD and CDMA/FDD
d) FDMA/FDD only

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