Re: [5gangip] 6G White Paper

Alexandre Petrescu <alexandre.petrescu@gmail.com> Thu, 09 July 2020 15:49 UTC

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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Subject: Re: [5gangip] 6G White Paper
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Le 09/07/2020 à 14:02, John Grant a écrit :
> On 09/07/2020 10:13, Alexandre Petrescu wrote:
>> I am 100% sure IP does not do statistical multiplexing.  Otherwise
>> I would have seen an implementation of some statistics function
>> like a Poisson distribution somewhere in the core IP stack.
> "Statistical multiplexing" in this context means data flows sharing a
>  transmission link without being allocated a fixed proportion of the
>  bandwidth, as distinct from TDM and FDM.

Still makes little sense.

TDM and FDM of cellular links could be compared to CSMA of Ethernet, or so.

In that sense, one can say that the Internet uses all these PHY encoding
schemes from TDM to FDM to CSMA to OFDM, because IP runs on almost all 
these links which use these encodings.

But that is not multiplexing.

Maybe s/he meant 'multicast' instead which is truly an Internet term.

> So, in practice, packet switching based on addressing etc information
> in the headers.

YEs, that is what Internet uses.

> It's probably a misuse of "statistical" but taking a word and giving
> it a new meaning without paying much attention to its existing
> meaning is nothing new in our industry.
Fair enough :-)

One might then wonder whether it makes any sense to wonder about what is 
6G.  There are already papers that describe 6G and that's that :-)

Alex

>