[ns] Simulating channel Hopping in ns2
mahrenho at ivs.cs.uni-magdeburg.de
Wed Nov 15 11:21:08 PST 2006
gaurav deshpande schrieb:
> Hi all,
> We intend to implement channel hopping using ns2 simulator. Has anyone tried to implement hopping in ns2?
> Our approach:
> We found that each channel (class WirelessChannel) keeps a linked list of all nodes listening on that channel. For a mobilenode to hop we wrote code to dynamically add and remove the node from this list. However, on running ns we get a segmentation fault. The code we wrote looks something like:
> MobileNode* n = <node that hops>;
> WirelessChannel new = <next channel to hop to>;
> WirelessChannel current = <current channel of node n>;
> It would be great of someone share thier experience in implementing channel hopping in ns2.
I cannot help with the channel hopping. But to find problems with linked
lists etc. in the C++ part of the code it is always a very good idea to
run ns-2 using valgrind. Simulations will use a lot more time to run,
but every strange or wrong memory access will be recognized.
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