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Problem:
(a) Compare the different MAC schemes, namely FDMA, SDMA, TDMA and CDMA.
(b) Describe with help of diagrams the different phenomena involved in multipath propagation.
(c) Draw and explain the functions of the main components in a cellular network.
(d) What is difference between a control channel and a data channel. Describe how the control channel can be more effective for communications at time of natural disaster.
(e)
i. Describe how channel re-use and frequency re-use will increase the number of users in a cellular network.
ii. State another solution that may increase the number of users in a cell, is it cheaper than the 2 previous solutions mentioned in i?
Temperature Triggering At high temperature the leakage current of junction J 2 increases. This leakage current is collector current of tr 1 and Tr 2 . So rise in temperat
1.Determine and plot the ratios μ tr /μ and μ ab /μ from 5 keV to 100 MeV for (a) air, (b) water, (c) muscle, (d) bone, and (d) lead
what is the varactor diode?
Draw a graph illustrating how resistivity varies with temperature for an intrinsic semiconductor. b) Gallium nitride, GaN, has an energy gap of 3.36 eV at 300 K. Calculate the w
what are the functions of interpolar winding and compensating winding?
design a 32:1 multiplexer using two 16:1 multiplexer
Q. Draw the circuit of a common drain FET amplifier and explain. FET amplifier circuit The weak signal is applied between gate and source and amplified output is obtained
Discribe the ultrasonic machining with main emphasis on the following (a) Basic working Principle and machining set up (b) Accuracy and surface complete on work materials
explain the details of varnier type potentiometer
Write a control word for counter 1 of 8253 / 8254 that selects the following options: load least significant byte only, mode 5 of operation and binary counting. Then write an ins
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