[Tinyos-devel] Lqi and CC2420

[Andreas Koepke]

Philip Levis:
> 
> On Feb 28, 2008, at 8:36 AM, Andreas Koepke wrote:
> 
>> I'd like to make MultiHopLqi independent of the CC2420 radio. Anybody 
>> against it?
>>
>> The idea is to introduce a separate component LinkCostC that is 
>> specific for each radio chip and computes a suitable LinkCost. 
>> Eventually we could think about using the LinkEstimator interface in 
>> MultihopLqi...
> 
> I'm currently the maintainer of MultihopLqi. It's part of the code that 
> net2 supports.
> 
> I'd rather avoid churn on it. MultihopLqi isn't perfect, but it's 
> something people know and understand. One of the recurring issues in 1.x 
> was the tension between continual improvement and having something which 
> was stable. E.g., if mlqi starts changing, then we might get people 
> stuck on 2.0.2 because they depend on the 2.0.2 implementation.
> 
> Instead, if this is something you want to pursue, I'd recommend forking 
> the code into a new protocol. It will, after, all, be different. If you 
> want it to be in tos/lib rather than tinyos-2.x-contrib, you should talk 
> to Om about joining net2. Net2 is currently the only WG with network 
> protocols under its charter. More protocol options are always good.

Yeah - I guess that is correct for the "eventual" part. However, making 
it independent of CC2420 is such a small change, it is hardly worth 
mentioning...

> Phil
>