Explain direct sequence-analog signal, Operating System

Assignment Help:

1. A digitized voice channel is made by digitizing a 7 KHz bandwidth analog signal. The signal is to be sampled twice the highest frequency (two samples per hertz) . Assume each sample requires 16 bits. What is the required bit rate?

2. If the signal at the beginning of a cable with -0.5 db/km has a power of 5 mW. What is the power of the signal at 8 Km.

3. What are the propagation time and transmission time for a 10 M byte message if the bandwidth of the network is 2 Mbps. The distance between the sender and the receiver is 15,000 KM and the light travels at 2.4 x 108 m/s.

4. Define Frequency Hopping Spread Spectrum and how it achieves bandwidth spreading.

5. Explain how Direct Sequence Spread Spectrum expands the bandwidth of the original signal

6. A multiplexer combines four 200 kbps channels using a time slot of 2 bits. Show the output with four arbitrary inputs. What is the frame rate? What is the frame duration? What is the bit rate? What is the bit duration?

7. There are four sources each creating 250 characters per second. If the interleaved unit is a character and 1 synchronizing bit is added to each frame , find (a) the data rate of each source (b) the duration of each character in each source (c) the frame rate (d) duration of each frame (e) the number of bits in each frame (f) the data rate of the link

8. Explain multilevel multiplexing, multiple slot multiplexing, pulse stuffing and framing bits with diagrams.

9. Explain the process of streaming stored audio/video by using a web server with metafile, using a media server and Real time streaming protocol (RSTP)

10. Explain JPEG image compression process with diagram.


Related Discussions:- Explain direct sequence-analog signal

Producer - consumer system, In this exercise we are going to use  pthread()...

In this exercise we are going to use  pthread()to simulate the dynamics between a warehouse, factory and retail. The factory produces product by using parts supplied by the warehou

Explain segmentation hardware?, Explain segmentation hardware? We defin...

Explain segmentation hardware? We define an completion to map two-dimensional user-defined addresses into one-dimensional physical addresses. This mapping is affected by means

Shared stack is used for parameter passing, Q. What protection problems may...

Q. What protection problems may occur if a shared stack is used for parameter passing? Answer: The contents of the stack could be conciliation by other process(es) sharing th

Several cpu-scheduling algorithms, Q. Several CPU-scheduling algorithms are...

Q. Several CPU-scheduling algorithms are parameterized for instance the RR algorithm requires a parameter to indicate the time slice. Multilevel response queues require parameters

Define properties of distributed operating system, Define properties of Dis...

Define properties of Distributed operating system Distributed:- This system distributes computation among several physical processors. The processors do not share memory or a

Direct communicatio., Consider a scenario of post mailbox, there are two pr...

Consider a scenario of post mailbox, there are two processes named sender S and receiver R. Both processes can communicate with each other by name along with message. You need to I

Definition of operating system, Q. Definition of Operating System? Defi...

Q. Definition of Operating System? Definition of Operating System: • An Operating system is a program which controls execution of application programs and acts as an interfa

Explain first fit allocation algorithm, Describe the following allocation a...

Describe the following allocation algorithms: a. First fit b. Best fit c. Worst fit   a. First-fit: search the list of available memory and all

Define multithreading, Define multithreading The proficiency of an oper...

Define multithreading The proficiency of an operating system to execute different parts of a program called threads simultaneously is called as multithreading. A thread is a fl

What are the various scheduling criteria for cpu scheduling, What are the v...

What are the various scheduling criteria for CPU scheduling? The various scheduling criteria are CPU utilization

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd