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Question: Suppose you are asked to design a 400 bit per second modem for a noisy bandlimited and power-limited passband channel. You determine that with reasonable excess bandwidth, a symbol rate of 100 symbol per second is possible.
(a) For an uncoded system, what is the required alphabet size? Choose a constellation.
(b) For a two-dimensional trellis coded system, what is the required alphabet size? Choose a constellation.
(c) Suppose that to get an acceptable probability of error the uncoded system requires 4 dB more power than the channel can tolerate. How would you overcome this problem?
Produce next state and output logic for the state machine of Exercise 5.5 and write a VHDL description of the hardware using simple gates and positive edgetriggered D flip-flops. Verify this hardware by simulation.
Do you have an experience factory within your organization or something similar, such as an experience warehouse or database? How are your past project data and experience kept?
Find E[N], the expected number of voice calls.
A classification technique (or classifier) is a systematic approach to building classification models from an input data set. Examples include decision tree classifiers, rule-based classifiers, neural networks, support vector machines, and naïve B..
Suppose that a 8M X 16 main memory is built using 1M X 8 RAM chips and memory is word addressable.
The receiver of problem 11 has a blocking dynamic range of 80 dB. If the desired signal has a level of 10 µV, what is the maximum signal level that can be tolerated within the receiver passband?
Find out what happens when you use the Partition Workshop applet on 100 inversely sorted bars. Is the result almost sorted?
A query is issued from Montreal that requires a join of tables A, B, and C. The query involves a single record from table A, 20 records from table B, and an undetermined number of records from table C. Develop and justify a plan for solving this quer..
Standards are very important part of industry benchmarks, regulations, and quality systems. Explain the following in details:
Write a program that reads a series of whitespace delimited strings from stdin and prints them back out, separated by spaces, in lexicographic order. You may assume that all strings are lower case and that no string has more than 20 characters.
Don't include the sentinel in calculation of the average. Include suitable data validations for invalid data
What is intellectual property (IP)? Is it afforded the same protection in every country of the world? What laws currently protect it in the United States and Europe?
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