Re: How do you do this?



I am of the opinion that is ok to ask someone what syntax
they prefer for a hello world example in a newsgroup because
people can easily answer. And I am of the opinion that you
can't ask people to provide solutions to detailed real world
problems that might take many man years to solve and
expect someone to do that for free and post the solution to
a newsgroup for you. Usenet can't work like that.

I think this is too complex to discuss compared to a hello
world type example.

Trey Boudreau wrote:
You haven't put many restrictions on the configuration. Let's add a few
more to clarify the problem:

1) The solution must function across the following three configurations:
nodes <= 1m apart, nodes >= 1000m apart, nodes >= 1000km apart.

Sure, and lets add that you have a long list of wireless protocols
that you have to support, estimated in tens or hundreds of man years.
And we need to add the noise margins, types of noise tolerated,
we need to add a minimum transmission rate, a mimum latency,
a minimal accepted error rate, a minal accepted error recovery rate,
and a few other real work details like that if we are going to be
professional about this.

2) You may use different code for different distances if you wish. We
will count the total size of the code as the sum of the executed code
on all nodes over all three configurations.

Certainly.

3) You may use any technologically functional interconnect of your
choice for any of the distances.

Ok.

4) You may spend no more than $2000.00 US on all the nodes and the
interconnects.

Will that include the cost of any infrastructure, coper wires, radio
repeaters,
or satelites already in place that you might use to make it all work.?

5) You may move the nodes for each of the three distance configurations
or you may use three or four nodes, but in either case you may not
exceed your $2000.00 US budget. You do not have to include the
salaries of persons participating in the test, but you must include
any shipping charges or raw materials (say, gasoline to drive the
nodes from test point to test point).

Well in the real world you have not only that $3+ a gallon gas but oil
tires, car cost, mainenance, insurance, license fees, license taxes,
and a few other associated expense like food, water, medical,
electricity, housing, or perhaps you expect this person to be living
on the street for a few years while they do your project for $2000
minus costs.

Then remember that there will be federal taxes, state taxes, local
taxes, and local assesments for street cleaning, libraries, street
lighting, vector abatement, and a lot of other things that will
bring that $2000 down again. Real world problems.

6) You may use existing nodes located sufficiently far apart, but you
must include the cost of the node in the $2000.00 US.

Well if someone else built it and put it into place and all I have to
do
is push a button and pay for three boxes ok, that's different.

That looks a bit more like an engineering problem in my opinion. Please
feel free to propose other constraints if you feel they would clarify
the problem.

Sure. And a company would more likely pay a few million for what
you ask rather than expect anyone to provide a detailed solution
in a newsgroup for free. And you would probably need to find
some experts in rf who know all about those protcols and noise
issues and have solved the problem before and know what
really will need to be done.

I think you have started a completely different thread than
what I indended. This has spun off from how would you do
this simple thing, what syntax would you prefer if you
had your choice? Your new 'real world' problem is just
way too much more complex and difficult to discuss,
doing difficult state of the art engineering without funding.
No one is going to post millions of dollars worth of work
for free to prove that they could have done it for $2000
if you had actually offered to pay $2000 for the million
dollar thing instead of wanting it for free.

I will let you take over the $2000 1000km development
problem with all the constraints listed above. If you find
someone who takes you challange, I do think it is
a bit harder than a hello world type thing, let me know
and I can provide those hard numbers for bit rates
and noise levels and the list of protocols that they
willl have to support and all the real expenses that
they will have to include in their real world $2000
solution. And I will greatly appreciate it when they
post all the details to the solution here for free.
I will be delighted if you can do that. It would allow
for a much greater profit margin in production.


-- Trey

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