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

Heuristic search strategies-artificial intelligence, Heuristic Search Strat...

Heuristic Search Strategies-Artificial intelligence In general speaking, a heuristic search is one which utilizes a rule of thumb to improve an agent's performance in solving p

What is Shortest-Remaining-Time (SRT) Scheduling?, • The SRT is the preemp...

• The SRT is the preemptive complement of SJF and helpful in time-sharing environment. • In SRT scheduling, the process with the least estimated run-time to completion is run next,

Algorithms, 1. In each of the following situations, indicate whether f = O...

1. In each of the following situations, indicate whether f = O(g), or f = O(g), or both (in which case f = T(g)). Briefly explain why. (a) f(n)=10n5 +8n2,g(n)=20n4 +7n3 +300 (b) f

Example of autonomous rational agents, Example of autonomous rational agent...

Example of autonomous rational agents-Artificial intelligence The procedure of waste water treatment After the level of pollutants in waste water is find out,  following 5

COMPUTER ORGANIZATION, Ask questio2. Define interrupt n #Minimum 100 words ...

Ask questio2. Define interrupt n #Minimum 100 words accepted#

Describe the binary search algorithm, QUESTION 1 Describe the binary se...

QUESTION 1 Describe the binary search algorithm using an example of your own. QUESTION 2 (a) By showing all your workings, give a big-O estimate for f(x) = (x + 1)lo

What is the benefit of Threads?, Following are some causes why we use threa...

Following are some causes why we use threads in designing operating systems. A process with several threads makes a great server for instance printer server. For the reason that t

Q: HOW DO YOU CODE -- WITHOUT USING ARRAYS OR SPLIT FUNCTION, Q: HOW DO YOU...

Q: HOW DO YOU CODE -- WITHOUT USING ARRAYS OR SPLIT FUNCTIONS -- TO SEPARATE COMMA SEPARATE NUMBER VALUES AND THEN SUM TO TOTAL? I.E., USING SUBSTRING AND INDEXOF. I''ve been try

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