Subject: [mobile-ip] Low Latency MIPv4 Handover Algorithms source code for simulation

From: "nicky muhammad ali " <[email-masked]>
Date: Sun, 02 Dec 2001 23:23:00 +0700

dear ns-users,

currently i was doing my final project on handoff method
analysis in mobile ip.
iam having trouble mapping my algoritthm to the
wireless-phy.cc code and mip-reg.cc.

my work is i compare three handoffs method, original handoff
method where in layer MAC handoff, the mobile host cannot
send any registration request to the home agent for the new
foreign agnet until mobile host really released from the old
foreign agent so there occured packet loss/discard because
of the handoff delay,
whereas for the fast registrationmethodmobile host can send
a request for the new foreign agent via the old fa to the
home agent and do an ordinal handoff procedure via the new
fa as well, but the request mobile host send for the new fa
via old fa is without the authentication  and also quickest
than the ordinal procedure with this procedure the delay and
packet loss can be discard.but new problem is overhead
because of the doublecasting by home agent to old and new
fa.

where for the 3rd method, seamless hadnoff method, when  mh
travel in the overlap region between 2 cell and mh can
receive an agent advertisement which consist of COA info,
the mobile host send a registration request for the new
foreign agent via old fa and then the old fa forward it to
the  new fa and then the new fa forward it to home agent. 
ha will register new fa care of address and a reply via new
fa.

maybe my algorithm is approximately like that.
my source is from the mr ohzahata, mr shigemura journal from
the ieice.or.jp site
On Tue, 27 Nov 2001 10:01:08 -0800
 "James Kempf" <[email-masked]> wrote:
> Try  http://geocities.com/kempf42/llanalysis.pdf.
> 
>         jak
> ----- Original Message -----
> From: "Mike Moreton" <[email-masked]>
> To: <[email-masked]>
> Sent: Tuesday, November 27, 2001 12:36 AM
> Subject: RE: [mobile-ip] Analysis and Comparison of Low
> Latency MIPv4
> Handover Algorithms
> 
> 
> > Jak,
> >
> > I don't think that can be the correct link...
> >
> > Mike
> >
> > > -----Original Message-----
> > > From: James Kempf [mailto:[email-masked]]
> > > Sent: 26 November 2001 21:27
> > > To: [email-masked]
> > > Subject: [mobile-ip] Analysis and Comparison of Low
> Latency MIPv4
> > > Handover Algorithms
> > >
> > >
> > > Folks,
> > >
> > > Jon Wood and I did a study comparing PreReg, Postreg,
> and
> > > standard MIPv4
> > > (SMIPv4) handoff. It is at
> http://www.geocities.com/llanalysis.pdf
> (it
> > > will shortly also appear at the DoCoMo Labs USA web
> site as well).
> > > Apologies for the paper format, but it is difficult
> to get fine
> > > depiction of experimental results in graphs using
> ASCII text.
> > > The study
> > > describes implementation experience with the 2 low
> latency
> algorithms
> > > (some of which Jon has already posted to the list),
> and a series of
> > > experiments we performed to measure the sensitivity
> of all three
> > > algorithms to various components of handoff latency.
> Issues
> > > arising from
> > > the study will be discussed in a slot at the Mobile
> IP Working Group
> > > Meeting at IETF 52. If you have any specific issues
> on the
> > > study itself
> > > or the paper, please post them to the list.
> > >
> > >                     jak
> > >
> > >
> >
> >
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