We need to use synchronous TDM and combine 20 digital sources, each of 100 Kbps. Eachoutput slot carries 2 bits from each digital source, but one extra bit is added to each frame forsynchronization. Answer the following questions:iii.What is the size of an output frame in bits?What is the output frame rate?What is the duration of an output frame?iv.What is the output data rate?What is the efficiency of the system (ratio of useful bits to the total bits)?V.091180091F0366BIB5980091F0366B8AB5980091IF036SBC8AB5980091EBC8AB5980091C8AB5980SAB59 Draw the constellation diagram for the following cases. Find the peak amplitude value for eachcase and define the type of modulation (ASK, FSK, PSK, or QAM). The numbers in parenthesesdefine the values of I and Q respectively.Two points at (2, 0) and (3, 0)Two points at (3, 0) and (-3, 0)Four points at (2, 2), (-2, 2), (-2, -2), andTwo points at (0, 2) and (0, –2)i.ii.iii.iv.BBC56BDEBDE7DE7487F4F7F4F754BBF4F754AF754EDE7498AF754BBC8AI749871987F4F754BBC8AB587F4F754BBC8AB59

Synchronous TDM: Synchronous TDM stands for synchronous time division multiplexing in which more…

We need to use synchronous TDM and combine 20 digital sources, each of 100 Kbps. Each output slot carries 2 bits from each digital source, but one extra bit is added to each frame for synchronization. Answer the following questions: i. ii. ii. What is the size of an output frame in bits? What is the output frame rate? What is the duration of an output frame? iv. What is the output data rate? V. What is the efficiency of the system (ratio of useful bits to the total bits)? 80091F0366BI 160 B5980091F0366B 8AB598009IF036 SBC8AB5980091FC BC8AB59800911 C8AB5980 8AB

We need to use synchronous TDM and combine 20 digital sources, each of 100 Kbps. Each output slot carries 2 bits from each digital source, but one extra bit is added to each frame for synchronization. Answer the following questions: i. ii. ii. What is the size of an output frame in bits? What is the output frame rate? What is the duration of an output frame? iv. What is the output data rate? V. What is the efficiency of the system (ratio of useful bits to the total bits)? 80091F0366BI 160 B5980091F0366B 8AB598009IF036 SBC8AB5980091FC BC8AB59800911 C8AB5980 8AB

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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31.5 Hz 63 Hz 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz 68 dB 61 dB 53 dB 49 dB 37 dB 34 dB 29 dB 24 dB 20 dB Find the resulting insertion loss values for each octave band at write them down, Subtract these values from the given spectrum to find the spectrum with the barrier in place ,Find the A-weighted total level at the receiver with the barrier in place.
A constellation diagram shows us the __________ of a signal element, particularly when we are using two carriers (one in-phase and one quadrature).
In ________, the phase of the carrier is varied to represent two or more different signal elements. Both peak amplitude and frequency remain constant. a. ASK b. PSK c. FSK d. QAM
A constellation diagram shows us the __________ of a signal element, particularly when we are using two carriers (one in-phase and one quadrature). a. amplitude and phase b. amplitude and frequency c. frequency and phase d. none of the above
A type of data transfer between two independent units requires that control signals be transmitted between the communicating units to indicate the time at which data is being transmitted. One way of achieving this is by means of a Control signal to indicate the time at which data is being transmitted and other method is an Agreement between two independent units. Explain both these methods in detail with all possible diagrams.
q7- Consider a Code Division Multiple Access system in which transmitting users A, B & C have the codes (1 1 1 1 -1 -1 -1 1), (1 1 1 1 1 1 1 1) and (1 1 1 -1 1 1 1 1) respectively similar to the Walsh codes of other users. The receiver intends to receive data transmitted by user C a) Find the bit transmitted if A, B are transmitting 1 and C is idle Result is 6, hence output is 1 Result is -14, hence output is 0 Result is 14, hence output is 1 Result is -6, hence output is 0 Result is Answer, hence output is Answer b) Find the bit transmitted if A, B and C are transmitting 1 Result is 6, hence output is 1 Result is -14, hence output is 0 Result is 14, hence output is 1 Result is -6, hence output is 0 Result is Answer, hence output is Answer
Select the correct statement(s) regarding a modulated carrier (i.e., passband) bandwidth. a. the bandwidth of the modulated carrier signal is dependent upon the bandwidth of the message b. the bandwidth of the modulated carrier signal is dependent upon the modulation method used c. an unmodulated carrier wave has not bandwidth d. all statements are correct
a. Compute for the data efficiency of transmitting if the data format is a General Synchronous Data Frame. b. For an asynchronous data transmission (wherein 1 byte of data is accompanied by a specific number of auxiliary bits), how many start and stop bits are there if the data efficiency in transmitting is ? The number of start bits is equal to the number of stop bits.
The data [0 1 0 0 0 1 0 1 1 1 0 0 1 1 1] is generated in an information signal with a speed of 64 kbit / s. This information mark [1 0 0 1 0 1] is transmitted using GPSK modulation with the spectrum code division multiple access (DSSS-CDMA) method, which is spread directly with the sequence, using the spreading sequence . 1- Show the bit sequence generated after spreading. 2- Show that the disseminated information can be retrieved at the receiver.
Create a diagram for color-coding of network code with pin code for the following: Straight Through Cross-Over
16. Which one is not transmission impairment?a) Distortion b) Attenuation c) Signal d) Noise e) None17. If two signals, which carry data of the same type, interfere each other, then data in onechannel embeds into other. This is called:a) Noise b) Crosstalk c) Spectrum d) Attenuation e) None18. Which one of the followings cannot be improved at a constant temperature?a) Signal-to-noise ratio b) Bandwidth c) Signal powerd) Noise Power e) None19. Which one is a disadvantage of wired communication?a) Is useful only for point to point communicationb) Only a small partition of transmitted energy can be received, since energy distributeseverywherec) Useful bandwidth is less than other wireless transmissiond) It is requires more complex circuitse) None21. Which one is used to describe methods that enable transmission of two or more signalswith the same transmission system?a) Encoding b) Multiplexing c) Modulating d) Spectrum e) None
When propagation speed is multiplied by propagation time, we get the ________. a. throughput b. wavelength of the signal c. distortion factor d. distance a signal or bit has traveled