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Problem :
(a) State and describe the transmission ranges associated with wireless transmission. Illustrate your answer with a diagram.
(b) Sketch a graph representing how a wireless signal attenuates with distance travelled.
(c) What is multiplexing? Briefly describe the different ways in which a medium can be multiplexed.
(d) Spreading the spectrum for signal transmission helps alleviate the narrow band interference problem. What is narrow band interference? State and describe different techniques that can be used to spread the spectrum.
(e) How would you modify the binary phase shift keying modulation technique to improve efficiency?
(f) Explain techniques used in cellular systems to improve the reuse of frequency channels. Illustrate your answer.
(g) Explain the effect known as cell breathing.
What are the desirable characteristics of an Electronic Market Place? Characteristics of an Electronic Market Place: a. Its electronic, the business center is not a phys
Find the boolean expression for the logic circuit shown below. Ans. Output of Gate-1 (NAND) = (AB)' Output of Gate-2 (NOR) = (A'+B)' Output of Gate-3 (NOR) = [(AB)' + (
What are virtual Functions
Sequential Logic Gates SR flip flop 1)
Q. Illustrate the history of computers? Let's now consider history of computers since this will give fundamental information about technological development trends in computer
Place some text wherever. Then click "Create path from text" in the "Text tool option" window. Then use "Edit" -> "Stroke path" and choose the appropriate options in the following
ARQ is transmitted in the event of: (A) Loss of signal (B) Error in received data (C) Improve reliability (D) During time out
Design of structure chart - Standard quality structure charts result in programs that are modular, reusable and simple to execute. - Measures include: Cohesion
A large numbers of computers in a wide geographical area can be efficiently connected using? A large numbers of computers in a broad geographical area can be efficiently linked
If for a short period of time circuits goes to some dissimilar logic level then it is assumed to have then it is known as static hazard e.g. If the final logic value of output of a
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