[ NNSquad ] Re: Subject: Re: [IP] "Entry level pricing"

[Russell Smiley <im.russell.smiley@gmail.com>]

George Ou wrote:
> Do you not understand the fundamental difference between wired and wireless?

Apparently not. Does one involve wires, and the other absence of wires?

> Let me put this in simple terms.  

Thanks very much. Appreciate that.

> WiMAX is
> 40 Mbps of SHARED capacity (potentially thousands of users) when using 10
> MHz of exclusively licensed spectrum under ideal conditions.  

> Move to the
> edge of coverage areas, live in coverage hole, use an indoor antenna,
> and the throughput can easily be halved or even chopped by 10.  That's
> the fundamental tradeoff between coverage and throughput.  If the
> signal to noise (SNR) ratio is low, you can only reliably transmit
> half a bit per Hz per second.  When the SNR is high, you can transmit
> 4 bits per Hz per second.

Very impressive, but all your techno babble doesn't change the point I 
was trying to make.

As I said before the problem comes down to the fact that I was paying
for a 3Mbps asymmetric connection and I most definitely was not getting
it - this is exactly the same as paying for a specified ADSL connection
and not getting what you paid for. It doesn't matter if I was suffering
interference problems (which could also have happened in DSL in the form
of a noisy line or "sync rate" problems), or if the ISP doesn't know how
to design a basestation and the backhaul infrastructure (which can also
happen in DSL if the ISP doesn't know how to scale their network for 
their aggregated subscriber traffic). It also doesn't matter that I have 
the expertise to characterise my radio connection and access to the test 
equipment to do so.

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