RE: [ns] GPRS simulation problem --> RJ'GPRS extension installation

["Zhou, Zhi Qiang (Roger)" <zroger@lucent.com>]

Hi Johnson,

1. extract the ns-allinone-2.1b7a

2. apply the noah extension into ns-2.1b7a.  
http://www.icsi.berkeley.edu/~widmer/mnav/ns-extension/

3. patch ns-allinone-2.1b7a by RJ's GPRS extension
     (a) apply 'patch_gprs'
     (b) cp 'final_code' into 'ns-2.1b7a'

Hope it help in a certain way,

zroger


-----Original Message-----
From: ch z [mailto:constitution_ns@yahoo.com]
Sent: Friday, September 07, 2001 1:39 PM
To: Zhou, Zhi Qiang (Roger)
Subject: RE: [ns] GPRS simulation problem


Hi, Roger
	When I built GPRS module into NS-2 on redhat linux
7.0, it complained that noah.cc could not be found.
Then I added two files, noah. {cc, h} into ns-2.1b7a
directory and compiled ns again. No error occurred
that time. But when I ran !?ns example.tcl!?, it gave
me an error information !?segmentation fault!? after
!?I don!?t have a chan yet ?C will send a resource
request!? was printed.
         Would you please give me some advice on how
to install GPRS module, I am looking forward to your
reply. 
                                                Yours
                                            Zhang
Cheng
	
                                                      
                                                      
        
Regards,
Johnson

--- "Zhou, Zhi Qiang (Roger)" <zroger@lucent.com>
wrote:
> 
> Yes, it do has the problem. I guess the reason is
> that GPRS extension
> injects 
> RLC layer into the network stack.  Therefore, in
> simple-wireless.tcl,  the 
> layer 2 protocol stack looks like:
> 
> 		LL
> 		RLC
> 		Mac/802.11
> 
> Then, RLC objects interferes Mac802_11 objects in
> the network stack.
> Does it right Jain ?
> 
> My point, actually it's a question, is why not
> inherits LL class when 
> implements RLC class. Just like MacGprs inherits
> Mac. The benefit
> is obvious that less core src code of ns-2 is
> modified and more 
> cohesion of software components.
> 
> If so, Link Layer components can be:    LL,
> RLC(inherits LL)
> MAC Layer components can be:    Mac, Mac802_3,
> Mac802_11, MacGprs, MacTdma
> 
> best rgds,
> 
> zroger
> 
> 
> -----Original Message-----
> From: Jeff Di Costanzo
> [mailto:metrojeff@hotmail.com]
> Sent: Tuesday, August 28, 2001 9:24 PM
> To: ns-users@ISI.EDU
> Subject: [ns] GPRS simulation problem
> 
> 
> Hi everyone,
> has anybody applied the GPRS module patch
> contributed by Richa Jain to
> ns2.1b7a and experienced problems running all/some
> of the wireless example 
> tcl scripts such as simple-wireless.tcl?....
> the error i'm getting looks something like...
> 
> [jeff@localhost ex]$ ns simple-wireless.tcl
> warning: Please use -channel as shown in
> tcl/ex/wireless-mitf.tcl
> can't read "rlcType_": no such variable
>     while executing
> "$node add-interface $chan $propInstance_ $llType_
> $rlcType_ $macType_
> $ifqType_ $ifqlen_ $phyType_ $antType_ "
>     (procedure "_o3" line 50)
>     (Simulator create-wireless-node line 50)
>     invoked from within
> "_o3 create-wireless-node"
>     ("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"
>     ("for" body line 2)
>     invoked from within
> "for {set i 0} {$i < $val(nn) } {incr i} {
>                 set node_($i) [$ns_ node]
>                 $node_($i) random-motion 0          
>    ;# disable random 
> motion        }"
>     (file "simple-wireless.tcl" line 93)
> 
> -------------------end
> 
> thanks in advance,
> jeff
> 
> 
>
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