[ns] AP Scenario

[ravi kumar]

hi,
i am simulating the access point scenario in which node(n0) is base station & two other nodes ,let, n1 & n2.
n1 lies n2 region and n2 lies n1 region.
both n1, n2 lies n0 region.
n1 want to send data to n2.
but when simulation start n1 send data n2 directly without using base station.
but i want to communicate it through base station . how can i do this.

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can i use unicast routing protocols (rip,ospf,bgp) in place of adhoc routing protocols in wireless network.

please give me some advice about this scenario.

Thanks