Its Wireless lan

1. Data and Signals (30 %) What are the three basic components of analog signals and how do the signals behave with their changes? (Include signal equations, diagrams and explanations) What is the frequency in Hertz of a signal that repeats YX, XXX times within one minute? What is its period, data rate and wavelength? (Where Y is the first number digit and X is the number of Os in your student id) What is the bandwidth of a signal composed of frequencies from YO Hz to YO0 Hz and data rate? (Where Y is the last number in your student id) A signal starts at point X. As it travels to point Y, it loses A dB. At point Y, the signal is boosted by B bB. As the signal travels to point Z, it loses C dB. What is the dB strength of the signal at point Z? (Where A, B and C the first three numbers in your student ID) a. b. c. d. 2. Signal Encoding (40%) Create a bit stream with 0s and 1s from your student id: Replace the numbers with 1 and leave the Os as is. Sketch the diagram for the following encoding format. NRZ-L b) NRZI Take the second half from the bit pattern from the question 5.6 If your student id ends with even number, otherwise take the first half. Encode this data using ASK, BFSK and PBSK What is QAM? Explain with examples. a. b. c) Bipolar-AMI d) Manchester c. d. 3. Network Model (30 %) Select an industry or a business what you know better (especially how It works). Identify activities and design a protocol suit Application Layer a. b. i. List of all of header names within the request and response of HTTP protocol. Briefly write down their functions C. TCP Suppose there is a small commercial retail building in your town that has essentially one room. On one side of the room is a real estate agency and on the other side of the room is a guy who sells tea. What is the relationship between this setup and the concept of IP addresses with TCP port numbers? What are the principal functions of TCP and what would happen in computer communication without this layer