[ns] wireless->nodes->finding bandwidth in C++

[Daniel Mahrenholz]

Mahesh schrieb:
> is there anyway to find the bandwidth of a wireless node in the ns-2 (C++ ) DSR code. And is there any way to find the bandwidth of a wireless node in the TCL script. 
>
> And also i need to know how to find the bandwidth of the neighboring nodes in a wireless network in NS-2 ( C++ ) DSR code.
>
> I am trying to implement an admission control protocol in DSR which requires me to find the bandwidth of a node as well as the bandwidth of the neighboring nodes. Since i am new to ns-2, i couldn't find it.
>   
Before you start to implement an admission control protocol you should 
become more familiar with the nature of wireless communication. It is a 
common misunderstanding that bandwidth is assigned to individual nodes. 
In the wireless setup you only define the transmission speed of the 
node. Wireless communication uses a shared medium and so a node has to 
share the channel access with all nodes that are within interference 
range. Additionally you should keep in mind that a message from one node 
to a target multiple hops away probably consumes bandwidth multiple 
times - just as an example, a message consumes bandwidth at the node 
when the node transmits the message, and when the neighbor and most 
likely the 2-hop neighbor forward it towards the destination.

btw - this question has been asked multiple times before on this list.

Regards,
Daniel.