Message quality and quantity, Basic Computer Science

Assignment Help:

Message Quality and Quantity:

Quality of transmission is a very important .consideration in telecommunication. Voice communication can use a narrow bandwidth, which means the reproduction of sound is not of high fidelity because the human ear is adaptable and can discern words even if not entirely faithfully reproduced. The same is not true for the transmission of music, where we expect high quality sound; for television broadcasting, where our picture must be sharp and the quality of colour high; and especially for data transmission, where inaccurate bit transmission can result in garbled and worthless messages. 

There are many techniques, besides providing more bandwidth than actually needed, to improve transmission quality and reduce the noise. One such technique is multiplexing. Multiplexing is of two types: Frequency Division Multiplexing, (FDM) and Time Division Multiplexing (TDM). Frequency Division Multiplexing is used to split a channel into several discrete narrower ones for simultaneous but separated transmission. On the other hand, time division multiplexing uses a common channel for several messages but at intermittent times; each signal taking turns on the same channel. In other words, multiplexing is a technique that is often used to interleave data so that they can be carried more efficiently in the same bandwidth. It is similar to concentrating but replaces many lines with one transmission path of .greater capacity. It must be remembered that multiplexing is a sharing technique only. There is no increase in the total information than can be transmitted.  


Related Discussions:- Message quality and quantity

Arinc 429 data bus specifications, ARINC 429 DATA Bus SPECIFICATIONS: A...

ARINC 429 DATA Bus SPECIFICATIONS: ARINC 429 sets specifications for the transfer of digital data between aircraft electronic system components and is a "One-way" communication

Cryptography, Question 1 Consider the one-time pad encryption scheme to e...

Question 1 Consider the one-time pad encryption scheme to encrypt a 1-bit message m, and assume m is chosen with uniform distribution from message space M={0,1}. Let E1 be the ev

Coal Computer organization and assembly language, Code for Program to find ...

Code for Program to find the second highest number from a given array in Assembly Language by using NASM

Expert system, Develop a simple expert system to pick ten stocks to conside...

Develop a simple expert system to pick ten stocks to consider. Create seven or more rules that could be used in such an expert system. Create five cases and use the rules

How to avoid race conditions with critical section?, • The key to preventi...

• The key to preventing problem involving shared storage is get some way to prohibit more than one process from reading and writing the shared data concurrently. That part of the p

Data structuures, write a fuctions for MIDSQUARING hashing technique

write a fuctions for MIDSQUARING hashing technique

C, Byteland county is very famous for luminous jewels. Luminous jewels are ...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

Functions, difference between recursion and iteration

difference between recursion and iteration

Inside earth, What are two types of evidence geologists use to learn about ...

What are two types of evidence geologists use to learn about Earth''s interior.?

Assigment, how to measure marginal utility.?

how to measure marginal utility.?

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