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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.
A random variable (X) is modelled as an exponentially distributed with mean 30 units. Simulate N = 50 samples from this distribution, and every sample must have m = 20 simulated va
the project database is avilable?
Implement the following function using a 3 line to 8 line decoder. S (A,B,C) = ∑ m(1,2,4,7) C (A,B,C) = ∑ m ( 3,5,6,7) Ans. Given function S (A,B,C) = m (1,2,4,7)
Simple instruction formats: RISC uses simple instruction formats. Usually only one or a few instruction formats are used. In these machines instruction length is fixed and alig
Q. Define syntax of MPI_Scatter function? MPI_Scatter(Sendaddr, Scount, Sdatatype, Receiveaddr, Rcount, Rdatatype, Rank, Comm): 'Using this function process with rank' ran
The linkage section is part of a known as program that 'links' or maps to data items in the calling program are working storage. It is the part of the called program where these sh
In a pure combinational circuit is it necessary to mention all the inputs in sensitivity disk? if yes, why? Yes in a pure combinational circuit is it essential to mention all
The spanning tree of connected graph with 10 vertices have 9 edges of spanning tree of connected graph with 10 vertices
What are the advantages of batch processing This has the advantage which jobs can be processed when computer resources are less busy (for example during the evening or at night
What are the primary impacts of information systems on an organization (employer, club, school, religious, etc..) for which you are familiar? What are the primary ways in which
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