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## Shannon Channel Capacity |

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shannon capacity , channel capacity , capacity awgn channel , mimo channel capacity

19 Threads found on edaboard.com: **Shannon Channel Capacity**

use **shannon** **channel** **capacity** theorem and classical thermodynamic Carnot's Law to derive the kT ln 2 minimum energy dissipation per bit for a communications **channel**.
Otherwise known as the **shannon**/Carnot Limit.
Can you express the noise mathematically?

Digital Signal Processing :: 12-08-2014 21:18 :: SunnySkyguy :: Replies: **2** :: Views: **307**

The theoretical **channel** **capacity** (maximal achievable data rate with optimal modulation) is described by the **shannon**-Hartley theorem.
As a simple conclusion, it says that the available data rate under given conditions (S/N ratio, modulation method) is proportional to bandwidth.

Electronic Elementary Questions :: 06-02-2014 07:43 :: FvM :: Replies: **5** :: Views: **347**

Hi everyone,
I want to know that **channel** badwidth of 5MHz in case of WCDMA and data rate or chip rate of 3.84Mcps are somehow related ?
If yes then what is the relation ?
One relation I have come across is **shannon**'s Relation but in that case we also need to know the SNR to calculate the data rate ?
Thanks in advance

RF, Microwave, Antennas and Optics :: 12-30-2012 10:15 :: nitink19 :: Replies: **4** :: Views: **927**

Hello all,
In my project, I am trying to achieve near **shannon** performance for 4x4 MIMO using 16 QAM on rayleigh fading **channel**. For that i need to calculate the **shannon** **capacity** of rayleigh fading **channel** for 4x4 MIMO. Whats the formula/approach for that?
Is this code doing it right way?

Electromagnetic Design and Simulation :: 10-16-2012 12:11 :: varun_vkjain :: Replies: **1** :: Views: **509**

I have similar question.
How to simulate **capacity** of **channel**?
Using **shannon**'s limit, I have obtained the **capacity**. I plotted **capacity** v/s SNR.
But my question is how to simulate? I want to simulate/show that above the maximum data rate, there is loss/error.
I want to simulate the way simulate BER.
I request (...)

Digital communication :: 03-27-2012 13:19 :: abhijithbg :: Replies: **8** :: Views: **457**

QPSK is only a modulation scheme. i.e. the Eb/No in **shannon**s theorem becomes Es/No. i.e Eb/No= Es/No *1/R . for QPSK we transmit twoice the number of bits as BPSK i.e. M=2.
**channel** **capacity** theorem a.k.a. **shannon**'s Theorem.

RF, Microwave, Antennas and Optics :: 07-13-2011 18:11 :: kalyanasv :: Replies: **2** :: Views: **773**

does any body know the **capacity** of a communication link based on QPSK modulation;
how is it related to the **shannon** theorem?
When a modulation scheme is used, we call the "**capacity**" the achievable rate. In the case of QPSK, the maximum achievable rate is 2 bit/**channel** use. On the other hand, when the (...)

Digital communication :: 07-13-2011 11:31 :: David83 :: Replies: **1** :: Views: **632**

In my opinion, the effect of noise is that we can not transmit information over any **channel** with an unbounded rate, that is every **channel** has a **capacity**, just as **shannon**'s celebrated **channel** coding theorem states.

Digital communication :: 11-18-2007 09:48 :: toshine :: Replies: **2** :: Views: **576**

the **shannon**'s law
R=BWlog2(1+C/N)
in a PSSS system
Is R the symbol rate here?
and BW is still the **channel** bandwidth?
Thanks!

RF, Microwave, Antennas and Optics :: 08-09-2007 05:16 :: fanshuo :: Replies: **1** :: Views: **1359**

What is the relations between **shannon** theorwm and **channel** coding?

Electronic Elementary Questions :: 06-03-2007 06:40 :: amiran2001 :: Replies: **4** :: Views: **1358**

use **shannon**-Hartly Theorem to find the **channel** capcity of a **channel**

Digital communication :: 04-30-2007 04:19 :: akumar1 :: Replies: **2** :: Views: **974**

your question is vague. try rephrasing it.
P.S:
Are you looking for **shannon**'s **channel** **capacity** theorem?

Digital Signal Processing :: 04-17-2007 10:21 :: hurrynarain :: Replies: **3** :: Views: **7762**

Hi,, man Q refers to the Quality factor or the selectivity of the Resonant circuit, Selectivity is the reciprocal of Bandwidth,, whereas the bit rate is the **channel** **capacity**, which refers to **shannon**'s **capacity** formula such that:
C = B log base 2 (1+SNR)
Where,
C = **channel** (...)

Digital Signal Processing :: 03-12-2007 14:26 :: qureshi :: Replies: **1** :: Views: **1002**

Bandwidth is the range of frequency that suffers an atenuation less than 3db when the signal pass throught the **channel**.
**channel** **capacity** is the maximum information rate that a **channel** is able to transmite/receive.
The **channel** **capacity** and the bandwidth of a **channel** is (...)

Electronic Elementary Questions :: 11-10-2006 18:35 :: claudiocamera :: Replies: **1** :: Views: **5350**

According to **shannon**'s theorem the **channel** **capacity** in a AWGN **channel** is given by: C=B log(1+S/N).
I have a doubt : Is C given in Bit rate ( Bits/sec) or Bauds (Symbols/sec) , if it is given in bit rate, I am not able to understand how the modulation schemes can be related to this equation. Could anyone please give an (...)

Digital communication :: 04-21-2006 18:08 :: claudiocamera :: Replies: **1** :: Views: **2228**

my professor told that there is no "**shannon**'s **channel** **capacity** law" for the 'cooperative network'.
i m very much interested in it. is there any white papers or books relating this topic.

Digital communication :: 12-28-2005 13:16 :: rednewguy :: Replies: **2** :: Views: **1538**

in the information theory u have the **shannon**'s theorems.
it states:
C = BW. log(1+SNR) i.e; **capacity** of the **channel** is related to bandwidth and SNR of the signal and noise.
and **capacity** is related to Hs (Antrpy of the source ) and Rs (Symbol rate).
for more detailed discussion refer to "digital communication " books. (...)

Digital communication :: 12-10-2005 14:18 :: mro83 :: Replies: **5** :: Views: **2790**

what is 0.188 dB? SNR or energy per bit(Eb/N0)?? What the text book do you read? The **shannon** limit is -1.6 dB (Eb/N0) regardless modulation schemes. Also the rate 1/2 is a rate for BSC **channel** whose the maxmimum **capacity** is one. This is in the different part of the system.

RF, Microwave, Antennas and Optics :: 10-25-2005 09:22 :: boy :: Replies: **4** :: Views: **2337**

what is meant by cooperative networks in mobile communication. I heard that there is no **shannon** **channel** **capacity** law for this network yet, is it so.

Electronic Elementary Questions :: 09-17-2005 11:36 :: rednewguy :: Replies: **0** :: Views: **923**

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