Explain direct sequence-analog signal, Operating System

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.

Posted Date: 3/5/2013 7:51:58 AM | Location : United States







Related Discussions:- Explain direct sequence-analog signal, Assignment Help, Ask Question on Explain direct sequence-analog signal, Get Answer, Expert's Help, Explain direct sequence-analog signal Discussions

Write discussion on Explain direct sequence-analog signal
Your posts are moderated
Related Questions
What is a client server system? Centralized systems proceed as server systems to satisfy request generated by client systems Server system is able to be broadly div

Define the features are needed to implement top down parsing                      Source string marker, Prediction making mechanism and Matching and Backtracking mechanism

What is long-term, medium-term, short-term? In a batch system many processes are submitted than are able to be executed immediately. These processes are reel to a mass storage

Calculate the Average Waiting Time CPU burst time points out the time, the process needs the CPU. The subsequent are the set of processes with their respective CPU burst time (

Pure and impure interpreters      In a pure interpreter, the source program is maintained in the source form throughout its interpretation. This arrangement acquires substantia

How is it different from the unbounded buffer algorithm ? Explain.

Q. In what circumstances is a token-passing network more effectual than an Ethernet network? Answer: A token ring is extremely effective under high sustained load as no colli

Write note on process, process state? A process is in excess of the program code which is sometimes known as text section. It as well includes the current activity as represent

Utility Programs: those programs which are not the essential part of operating system. But they provide different utilities / features to the users e.g. MS-DOS : Fdisk, FORMAT, AT

Explain the Sleep (ms) Function  This call places the current thread in a suspended state for the number of milliseconds passed as the parameter (ms). After that Windows NT wil