Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with information-theory
Search options answers only
not deleted
user 923
8
votes
Accepted
Issues related to entropy
I will try to tackle questions 1 and 4.
1) Entropy- It is desired that the entropy of the system be maximized. Maximizing entropy means no symbol is better than the others or we do not know what t …
- 12.2k
6
votes
Accepted
What is the meaning of channel capacity?
1) Is there a connection between the modulation kind and the channel capacity?
The capacity of a channel indicates the upper limit of how many bits can be transmitted per second over the channel …
- 12.2k
5
votes
Accepted
Does any error correction code still work in such situation?
I'm afraid that this will be an incomplete answer, but I'm giving it in the hopes that it is better than nothing.
It is impossible to recover any information with a BER of 50% because, as information …
- 12.2k
5
votes
Meaning of channel capacity in the AWGN channel
There are two main factors when figuring out how many bits are transmitted per symbol (or "channel use"): the modulation and the error correction encoding. For instance, BPSK modulation with no encod …
- 12.2k
4
votes
Accepted
Difficulties in understanding mutual information concept
What does mutual information (MI) convey?
It indicates that there is a relationship between the two signals- i.e. that they are not independent. It could be that they are correlated, but the rel …
- 12.2k
3
votes
Accepted
What is Shannon's source entropy
So,what exactly is Source entropy?
When the paper talks about "source entropy" all they mean is the entropy of the information source. You can see that from the following passage in the paper- " …
- 12.2k
3
votes
Is there a proof that equal bandwidths have equal information-carrying capacity?
I'm not a mathematician so I won't pretend to claim that this is anything like a proof, but at an intuitive level I think that the fact that you can deterministically transform baseband to passband an …
- 12.2k
2
votes
Accepted
Relation between SER and the channel capacity
Yes, there is a relationship between SER and channel capacity. The channel capacity equation is-
$$
C = B\log_2(1 + \frac{S}{N})
$$
where $C$ is the channel capacity in bits/s, $B$ is the bandwidth …
- 12.2k