[e2e] Satellite networks latency and data corruption

[Scott Boone]

On 4 Jul 2005, at 12:39 AM, alok wrote:
> Hi,
>
> Is there any standard and are there any figures available on:
>
> a. latency in satellite based networks and losses associated?

Optimal latency can be calculated using transmission time based on  
speed of light, depending on how high up the satellite is.  There is  
no loss associated with latency.  If you mean loss associated with  
the wireless SATCOM links, that varies a lot from satellite to  
satellite based on antennae and beam design.

> b. error correction techniques used (those which are used on a hop  
> by hop bases, if any)

Note that these are mostly in context of dealing with TCP issues, but:

See RFC 2488 for a brief discussion of FEC.
See RFC 3366 for a discussion of Link ARQ

> c. a general measurement of latency in the absence of hop by hop  
> error correction techniques (assuming zero message corruption).

See my answer to (a).


Scott