[ns] what is lifetime of sensor network

[tandre@dei.uc.pt]

Hi Wang,
I dont know any authoritative definition for the lifetime of a network. 
But in my opinion is that depends on the application/scenario. Some 
authors claim that it is the time till the last/first node is 
alive/dead, or even half network is dead. But i guess that it is 
important to register the time when the network is no longer performing 
its goal, this meatric can be a % of monitored phenomenos.

Regard,
Tiago Camilo


Quoting Weixing Wang <weixing at kth.se>:

>
> Hello,
>
> I'm confused with the lifetime of sensor network. Is it the time until the
> last or the first node uses out of energy. Or, is it the time before a
> small fraction of nodes die, and how exact is the fraction. I want the
> AUTHORITATIVE definition, e.g. by IEEE. Any one can help? Thanks in
> advance.
>
> Best regards,
> Weixing Wang
>
>
>
>
>
>



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