help please Consider three UE (user equipment) A, B and C, using respectively the following codes:A:(1, 1, x, -1)B:C:(y, 1, -1, 1)(1,-1,-1, 1).A and B want to send simultaneously the following binary information:A: 01B: 10C is not sending any data.a) Calculate the values of x and y.b) What will be the encoded data for A and B? Explain your answer.c) What will be the superposition of the encoded data of A and B?d) The NodeB receives the superposed data and wants to separate B's data from A's datausing their corresponding codes. Explain how this can be performed.

(a). The codes of A, B and C must be Orthogonal to each other, It means: BAT=0, CAT=0,…

Answered: Consider three UE (user equipment) A, B…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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The ASCII code has 128 binary-coded characters. If a computer generates 125,000 characters per second, determine the following: a) The number of bits (binary digits) required per character. b) The number of bits per second required to transmit the computer output, and the minimum bandwidth (Nyquist frequency) required to transmit this signal. c) For single error detection capability, an additional bit (called a parity bit) is added to the code for each character. Calculate your answers for part (a) and (b) again to accommodate the addition of the parity bit to each character.
Given the code C = {000 000, 111 000, 000 111 } Consider the following statements: (1) The code C can correct up to 1 bit error. (2) The minimum distance of code C is 3. Which of the following is correct? O Both statements are TRUE. O Only statement (1) is TRUE. O Both statements are FALSE. O Only statement (2) is TRUE.
Given the code Consider the following statements: (1) The code C can correct up to 1 bit error. (2) The minimum distance of code C is 3. Which of the following is correct? Group of answer choices Both statements are TRUE. Only statement (1) is TRUE. Both statements are FALSE. Only statement (2) is TRUE.
Problem: You have the table below of values of telemetry from the satellite. The temperatures are encoded linearly in unsigned binary bytes as a function of time. The samples come in every five minutes starting at time = 0. The temperatures are in degC and the temperature of -50 degC corresponds to a telemetry value of 0, while a temperature of 100 degC corresponds to a telemetry value of 255. (All values are decimal unless explicitly stated otherwise.) Write down the equation that describes the temperature as a function of telemetry value in the form of T = a* TV + b. What is the value of a? What is the value of b? After your data has been downlinked, as shown in the table below, fill in the Time and Temperature columns (to one place past the decimal point for the Temperature). Sample Telemetry value Time (minutes) Temperature (degC) 1 2 3 4 5 6 7 8 9 10 11 12 13 10 12 14 17 21 41 81 181 210 220 215 222 225 0 5 10 60 -44.1 -42.9 -41.8 82.3
1. Consider a floating-point format that uses 8 bits of memory to store numbers: • 1 bit for the sign; 3 bits for the exponent; • 4 bits for the significand including the leading 1, i.e., significand is of the form (1.d₁d2d3)2. (a) Compute fl(23.375), the floating point approximation of 23.375 using rounding. (b) To how many significant digits is fl(23.375) accurate? (c) When would you get numerical underflow and overflow errors with this format? Note that we are not dealing with a shifted exponent. (d) What is the largest integer M such that every integer between 1 and M are exactly represented by this format? (e) How many numbers can be represented exactly by this format? 2.5 2 1.5 1 0.5 0 -1 g(x) --h(2) -0.5 0 X (a) Plot of g(x) and h(x). 0.5 0.5 0 -0.5 -1 -1.5 -0.5 0 X 0.5 (b) Plot of f(x) = 9x² - 4x/5 10
4- Serial I/O, a) Suppose that in a serial communication channel, the receiver receives the following data frame: 1 1 Start bit Data bits Parity bit Stop bits Assume that the 8 data bits (shown by the blank squares above) represent the first 2 digits in your Red ID number with 4 bits used to represent one Red ID number. For example, if your Red ID number is 987654321, then the first two digits are "98", and the corresponding 8 data bits will be "1001 1000". - Indicate your data bits in binary below. - According to the parity bit information shown in the above data frame and vour individual transmitted 8 data bits in the previous question, is there a single-bit error in vour data bits? Justify your answer. 8 b) Now we will use the last digit of your Red ID number, then we will multiply this number by 1200 to obtain the Baud rate value of our transmission. For example, if your Red ID number is 987654321, since the last digit is 1, we will then obtain our Baud rate value as: 1 x 1200 =…
The Amplitude Modulation (AM) is a technique used in communication for transmitting information via radio carrier wave. AM works by varying the amplitude of the transmitted signal in relation to the information being sent. The equations of the carrier signal, the original signal to send, and the modulated signal combining the two signals are respectively: VI-V sin (2nfet) V2=Vm sin (2πfmt) V3-V sin (2nfet)+V sin (2nft)* sin (2nft) Supposing that V-Vm-1, fc-20, fm 1. Write a MATLAB program that plots the three signals with single call, the graphs must be contain (desired title, axis labels, annotations, with symbols for color, style, and marker) for each graph. Use the step 0.0025 for the time.
1. A CRC code uses the following generator: G = 0x225. Codewords have 8 data bits. (a) Write the binary representation of G. (b) Write the polynomial representation of G. (c) How many CRC bits are there in a codeword? (d) Calculate the corresponding codeword for the following information bits: 0010 0011. Please provide clear explanation
8. Under which condition will a comparator have a =' output? a. The largest bit is equal b. The smallest equal c. All bits are equal
The Amplitude Modulation (AM) is a technique used in communication for transmitting information via radio carrier wave. AM works by varying the amplitude of the transmitted signal in relation to the information being sent. The equations of the carrier signal, the original signal to send, and the modulated signal combining the two signals are respectively: VI-V sin (2πƒct) V2=Vm sin (2πfmt) V3=Vcsin (2πfct)+ Vm sin (2πfmt)* sin (2nfct) C Supposing that Vc =Vm=1, fc-20, fm=1. Write a MATLAB program that plots the three signals with single call, the graphs must be contain (desired title, axis labels, annotations, with symbols for color, style, and marker) for each graph. Use the step 0.0025 for the time.
Consider a 7-bit floating-poin representation based on IEEE floating-point format. This format does not have a sign bit it can only represent nonnegative numbers. The first 4 bits represent the exponent bits (the exponent bias is 7). The last 3 bits represent fraction bits. Decimal values are encoded as a value of the form V = M x 2E Fill in the table below with the given floating point encoding for the given decimal value. If rounding is necessary, use round-to-even. In addition, you should give the rounded value of the encoded floating point number. Give these as whole numbers (e.g., 17) or as fractions in reduced form (e.g., 3/4). Decimal Value Binary Floating Point Representation Rounded Value 19/1024 0001 010 5/256 32/512 23/256 CS GmScanner ile tarandı 3.612
36 59- is a sequence of characters surrounded by double quotes. * • Constant • Numeric • Character • String 57- What are bitwise operators? * • & ! • All above 52- Which one of the following is a keyword in c++? * • Size Кey >

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