Prev: reshape and saving as .mat in C++
Next: Function definition in a script.
From: mohammad alquraan on 26 Mar 2010 11:18
Hello all, I am communication engineering student in the last year, I have a small project in matlab for mobile cells,i have drawn it, but I want code to put character (i.e A,B,C,D.......) inside every cell to apply frequency reuse theory, using the equation:
N=i^2 + j^2 + i*j

and thnx.
From: mohammad alquraan on 26 Mar 2010 11:45
"mohammad alquraan" <m.qur3an88(a)yahoo.com> wrote in message <hoij7b$a5i$1(a)fred.mathworks.com>...
> Hello all, I am communication engineering student in the last year, I have a small project in matlab for mobile cells,i have drawn it, but I want code to put character (i.e A,B,C,D.......) inside every cell to apply frequency reuse theory, using the equation:
> N=i^2 + j^2 + i*j
>
> and thnx.



please i need some help
From: Walter Roberson on 26 Mar 2010 11:54
mohammad alquraan wrote:
> Hello all, I am communication engineering student in the last year, I
> have a small project in matlab for mobile cells,i have drawn it, but I
> want code to put character (i.e A,B,C,D.......) inside every cell to
> apply frequency reuse theory, using the equation:
> N=i^2 + j^2 + i*j

Your formula has no obvious connection to choice of characters.

Note: in Matlab, by default, i and j both refer to the imaginary unit.
i^2 would be -1, as would be j^2, and since i = j by default, i*j would
be as well, so unless you present further context, your formula
simplifies to N = -3 .
From: Walter Roberson on 26 Mar 2010 12:15
mohammad alquraan wrote:
> "mohammad alquraan" <m.qur3an88(a)yahoo.com> wrote in message
> <hoij7b$a5i$1(a)fred.mathworks.com>...
>> Hello all, I am communication engineering student in the last year, I
>> have a small project in matlab for mobile cells,i have drawn it, but I
>> want code to put character (i.e A,B,C,D.......) inside every cell to
>> apply frequency reuse theory, using the equation:
>> N=i^2 + j^2 + i*j
>>
>> and thnx.

> please i need some help

Asking for help again after only half an hour? It is true that the first
thing I do in the morning after getting up is connecting and checking
mail and newsgroups, but with over 95 overnight messages to be
considered, it is only fair that I address the older postings first, as
those people have been waiting longer.

Your question is not really very clear about what you want assistance
with. If the question is just "how do I place a particular bit of text
at known coordinates on a graph", then the answer is to use the text()
function -- something that I'm sure could have been discovered in less
than half an hour of browsing from the "Getting Started" pages of the
documentation.

If the question is about how to determine which cells can be reused for
which frequency, then as I pointed out in my previous post, the formula
you gave us does not help us in determining that. Such a question would
seem to be a variant of the Four-Color Mapping Theorem (perhaps with
simplifying constraints)... on the other hand, since wireless
communication is really 3D, you might be trying to solve the problem for
a multi-floor apartment building (for example), and the 3D equivalent of
the Four-Color Theorem is 6 colors I seem to recall (or was that the
surface of a torus?), and I don't recall that the 3D version has
actually been proven yet. If you aren't using directional antennae, then
the problem would probably be related to the Sphere Packing problem
except with non-unit radii...
From: mohammad alquraan on 27 Mar 2010 13:35
Walter Roberson <roberson(a)hushmail.com> wrote in message <hoimjb$pn5$1(a)canopus.cc.umanitoba.ca>...
> mohammad alquraan wrote:
> > "mohammad alquraan" <m.qur3an88(a)yahoo.com> wrote in message
> > <hoij7b$a5i$1(a)fred.mathworks.com>...
> >> Hello all, I am communication engineering student in the last year, I
> >> have a small project in matlab for mobile cells,i have drawn it, but I
> >> want code to put character (i.e A,B,C,D.......) inside every cell to
> >> apply frequency reuse theory, using the equation:
> >> N=i^2 + j^2 + i*j
> >>
> >> and thnx.
>
> > please i need some help
>
> Asking for help again after only half an hour? It is true that the first
> thing I do in the morning after getting up is connecting and checking
> mail and newsgroups, but with over 95 overnight messages to be
> considered, it is only fair that I address the older postings first, as
> those people have been waiting longer.
>
> Your question is not really very clear about what you want assistance
> with. If the question is just "how do I place a particular bit of text
> at known coordinates on a graph", then the answer is to use the text()
> function -- something that I'm sure could have been discovered in less
> than half an hour of browsing from the "Getting Started" pages of the
> documentation.
>
> If the question is about how to determine which cells can be reused for
> which frequency, then as I pointed out in my previous post, the formula
> you gave us does not help us in determining that. Such a question would
> seem to be a variant of the Four-Color Mapping Theorem (perhaps with
> simplifying constraints)... on the other hand, since wireless
> communication is really 3D, you might be trying to solve the problem for
> a multi-floor apartment building (for example), and the 3D equivalent of
> the Four-Color Theorem is 6 colors I seem to recall (or was that the
> surface of a torus?), and I don't recall that the 3D version has
> actually been proven yet. If you aren't using directional antennae, then
> the problem would probably be related to the Sphere Packing problem
> except with non-unit radii...




Walter Roberson .Thank you to try to help me.
but the characters in the formula are not the complex numbers, it can be anything.
My problem exactly is if i plot several Contiguous hexagonal cells, how i can moves to the other cells and writing (i.e A,B,C,D,....) in the center of each cell ,depending on the frequency reuse theory...
 | 
Pages: 1
Prev: reshape and saving as .mat in C++
Next: Function definition in a script.