Hi Carsten and Mehmet,
thanks for the terminology draft which is quite useful; and is
providing clarifying information.
I want to re-ask to add terminology on power usage (possibly
orthogonal) to the device classes C0-C2, as came forward from several
persons on and off the wg-lists.
Power consumption is an important aspect and has quite "interesting"
consequences for protocols and deployment options.
<Suggestion:>
P0: battery-less devices. They have a capacitor which is charged by
harvesting power delivered by a small movement or light. The stored
energy is just sufficient to send or receive a limited number of (today
1-3) packets per processor wake-up.
It is important to realize that P0 devices are not limited by the
number of packets they can send, but are limited as to the rate.
P1: battery-constrained devices. They have a battery. Whereas, P1
devices are limited by the total number of packets they can send. Every
packet they send today is a packet they cannot send tomorrow.
P2: green devices. Independent of the energy source (external, battery
capacitor) these devices continuously switch on and off parts of the
electronics to reduce the power consumption as function of the external
demands on its operation.
<end suggestion>
In the text under class 0 devices there is a phrase:
"Class 0 devices will participate in Internet communications with the
help of larger devices acting as proxies or gateways".
I find it difficult to place the gateway. I have seen the term "server"
mentioned as providing web-services to the device not supporetd by the
device itself.
Greetings,
Peter
--
Peter van der Stok
mailto: [email protected]
www: www.vanderstok.org
tel NL: +31(0)492474673 F: +33(0)966015248
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