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Baseband communication is the simplest form of analog communication.

We use analog communication techniques for analog message signals, like music, speech, and television. Transmission andreception of analog signals using analog results in an inherently noisy received signal (assuming the channel addsnoise, which it almost certainly does).

The simplest form of analog communication is baseband communication .

We use analog communication techniques for analog message signals, like music, speech, andtelevision. Transmission and reception of analog signals using analog results in an inherently noisy received signal(assuming the channel adds noise, which it almost certainly does).
Here, the transmitted signal equals the message times a transmitter gain.
x t G m t
An example, which is somewhat out of date, is the wireline telephone system. You don't use baseband communication inwireless systems simply because low-frequency signals do not radiate well. The receiver in a baseband system can't do muchmore than filter the received signal to remove out-of-band noise (interference is small in wireline channels). Assuming thesignal occupies a bandwidth of W Hz (the signal's spectrum extends from zero to W ), the receiver applies a lowpass filter having the same bandwidth, as shown in [link] .

The receiver for baseband communication systems is quite simple: a lowpass filter having the same bandwidth as thesignal.

We use the signal-to-noise ratio of the receiver's output m ^ t to evaluate any analog-message communication system. Assume that the channel introduces an attenuation α and white noise of spectral height N 0 2 . The filter does not affect the signal component—we assume its gain is unity—but does filter the noise,removing frequency components above W Hz. In the filter's output, the received signal power equals α 2 G 2 power m and the noise power N 0 W , which gives a signal-to-noise ratio of

SNR baseband α 2 G 2 power m N 0 W
The signal power power m will be proportional to the bandwidth W ; thus, in baseband communication the signal-to-noise ratio variesonly with transmitter gain and channel attenuation and noise level.

Questions & Answers

what is variations in raman spectra for nanomaterials
Jyoti Reply
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Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
yes that's correct
I think
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how did you get the value of 2000N.What calculations are needed to arrive at it
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Source:  OpenStax, Fundamentals of electrical engineering i. OpenStax CNX. Aug 06, 2008 Download for free at http://legacy.cnx.org/content/col10040/1.9
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