[ns] about the simple-wireless.tcl

[HE Jun <iscp0252@nus.edu.sg>]

Hi, all

I think there is an error in the downloaded version of simple-wireless.tcl 
which is used as an example in Marc Greis's Tutorial at " IX. Running 
Wireless Simulations in ns". The downlaoded version can't work both in 
Windows and Unix.  The error is caused by the following code

   $ns_ node-config -adhocRouting $val(rp) \
          -llType $val(ll) \
          -macType $val(mac) \
          -ifqType $val(ifq) \
          -ifqLen $val(ifqlen) \
          -antType $val(ant) \
          -propType $val(prop) \
          -phyType $val(netif) \
           -topoInstance $topo \
           -channel $val(chan) \        ;# error ,should be channelType
           -agentTrace ON \
           -routerTrace ON \
           -macTrace OFF \
          -movementTrace OFF

The code on the webpage is correct.  I hope this email can save new user of 
ns  some time.

HE Jun