[ndnSIM] Wireless multi-hop ad-hoc communication

Alex Afanasyev aa at CS.UCLA.EDU
Wed Nov 11 04:27:12 PST 2015

> On Oct 30, 2015, at 6:09 PM, Thiago Teixeira <tteixeira at engin.umass.edu> wrote:
> Hi all,
> I am using ndnSIM 2.0 and I am working on a scenario with multiple nodes, randomly placed in an area, communicating via Wi-Fi. I have one producer (fixed), one consumer, and all other nodes are routers. Every node broadcasts the Interests to all faces (using a modified broadcast strategy).
> The point is, most of the communication was done in one hop. I reduced the Wi-Fi range and noticed that routers do not relay content.
> Therefore, I have a few questions:
> 1 – Does ndnSIM supports multi-hop wireless communication by default? I want the routers to work like data mules.
> 2 – My question is very similar to this: http://www.lists.cs.ucla.edu/pipermail/ndnsim/2013-March/000201.html
> I wonder if the Car2Car implementation is still the way to go, or there are newer implementations.

Hi Thiago,

As you may have read in my old reply, everything depends on what interest forwarding strategy does.  One of the default actions that strategies implement is "do not forward interest to the face the interest was received from".  This effectively prevents re-broadcasting the interest.  If you want to have this feature, you need to implement it and some logic that will restrict this re-broadcasting based on some condition.  Car2Car design is one possible way to do this, under assumption about how interests needs to be disseminated.


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