Hello everybody, I* *am working on wireless sensor networks and am presently studying the directed diffusion protocol.while running the "*ns-2.26/tcl/ex/diffusion/simple-diffusion.tcl*" file, it is giving the following error regarding the use of the channel variable:
num_nodes is set 3 warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl can't read "chan": no such variable while executing "$node add-interface $chan $propInstance_ $llType_ $macType_ $ifqType_ $ifqlen_ $phyType_ $antType_ $inerrProc_ $outerrProc_ $FECProc_" (procedure "_o3" line 70) (Simulator create-wireless-node line 70) invoked from within "_o3 create-wireless-node 0" ("eval" body line 1) invoked from within "eval $self create-wireless-node $args" (procedure "_o3" line 14) (Simulator node line 14) invoked from within "$ns_ node $i" ("for" body line 2) invoked from within "for {set i 0} {$i < $opt(nn) } {incr i} { set node_($i) [$ns_ node $i] $node_($i) color black $node_($i) random-motion 0 ;# disable random ..." (file "simple-diffusion.tcl" line 10 please help. -your`s, aritra.