[Tinyos-devel] Lqi and CC2420

[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.

Phil