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(a) Illustrate what you understand by Nyquist Capacity Theorem?
(b) Consider we wish to transmit at a rate of 64 kbps over a 4 kHz noisy but error-free channel. What is the minimum SNR in dB required to accomplish this?
(c) How is the rate improved if we double the bandwidth?
(d) How is the rate improved if we double S/N?
(e) Now Consider that the above uses QPSK modulation becomes error-prone, what is the minimum signal power that is needed to sustain a data rate of 64 kbps with a BER of 10-5 at 25 degrees Celsius?
Q1 (15 marks, 5 marks each part): This question has three parts: In a short paragraph (200-300 words) explain the fundamentals of Packet Switching and how it works. In a short pa
#questioAn elliptic curve y^2=x^3+ax+b(mod29) includes points P=(7, 15) and Q=(16, 13) a)Determine the equation of the crve b) Determine all values of x for which there is no point
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Using the selected approach, you should then conduct an audit or review of the information security issues associated with the use of computing facility and report on the findings.
what is hacking
what is relation ship between computer security goals?
Attacks on Cryptosystems Attacks are attempts to achieve unauthorized access to secure communications have characteristically used brute force attacks. Attacker may alternatively
The key concepts and frameworks covered in modules 1-4 are particularly relevant for this assignment. Assignment 2 relates to the specific course learning objectives 1, 2 and 3:
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Question: a. State briefly three reasons why computer networks are used? b. Differentiate between simplex, half-duplex and full-duplex mode of transmission. c. State any
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