Re: [gaia] Scalable Lunar Surface Networks and Adaptive Orbit Access

Hello Javier,

Ermanno sent this reason to me - sharing it here:

"TDMA is great for point to point and whenever there are a limited number
of nodes which send comparable amount of traffic and has been used for
instance in telephony for decades.
It is not efficient for sporadic traffic, that is why in LAN CSMA is
preferred.
OF course a hybrid approach will accommodate both types of needs."

this was a pretty old project: https://techport.nasa.gov/view/8273

Regards

On 7 September 2018 at 11:09, Javier Simó <javier.simo@urjc.es> wrote:

> I had no idea about this project, but it sounds extremely interesting for
> a bunch of terrestrial scenarios. Arjuna, if you have more info about this,
> please let me know.
>
> I guess that they are just assuming (as Mikrotik with NV2, as Ubiquiti
> with AirMAX) that the shortest path to a solid solution is to base it on
> the most flexible athX 802.11 radios, and disable the ACKs and
> retransmissions when the TDMA is activated.
>
> Of course TDMA could be sufficient in a completely new solution. Don't
> forget that 802.16-2004 had a mesh mode for multi-hop setups... though it
> disappeared in the newer versions of the standard.
>
> Also I don't understand why they mention together AODV and DTN, as if they
> were in the same layer. Anyways, I am very interested on this! I appreciate
> if anyone can give more details!
>
>
> Thanks
>
> El 07/09/18 a las 08:59, Arjuna Sathiaseelan escribió:
>
> any idea why still have CSMA/CA and TDMA as an overlay? TDMA alone is
> sufficient?
>
> https://catalog.data.gov/dataset/scalable-lunar-
> surface-networks-and-adaptive-orbit-access-phase-ii
>
> --
>
> Arjuna Sathiaseelan | http://sathiaseelan.org
>
>
>
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>
>
> *Francisco Javier Simó Reigadas*
>
> *Profesor, Director de la ETSIT*
>
> *Dep**t. Teoría de la Señal y Comunic. y Sist. Telemáticos y Computación*
>
> Universidad Rey Juan Carlos
>
> Campus de Fuenlabrada (Madrid), España
>
> Teléfono: 91 488 81 67
>
> javier.simo@urjc.es | www.urjc.es | @URJC |
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-- 

Arjuna Sathiaseelan | http://sathiaseelan.org

Re: [gaia] Scalable Lunar Surface Networks and Adaptive Orbit Access

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