Scalability Analysis of Cost Essence for a HA entity in Diff-FH NEMO Scheme

Network Mobility Basic Support (NEMO BS) protocol has been
accredited and approved by Internet Engineering Task Force
(IETF) working group for mobility of sub-networks. Trains,
aircrafts and buses are three examples of typical applications for
this protocol. The NEMO BS protocol was designed to offer
Internet access for a group of passengers in a roaming vehicle in
an adequate fashion. Furthermore, in NEMO BS protocol, specific
gateways referred to Mobile Routers (MRs) are responsible for
carrying out the mobility management operations. Unfortunately,
the main limitations of this basic solution are pinball suboptimal
routing, excessive signaling cost, scalability, packet delivery
overhead and handoff latency. In order to tackle shortcomings of
triangular routing and Quality of Service (QoS) deterioration, the
proposed scheme (Diff-FH NEMO) has previously evolved for
end-users in moving network. In this sense, the article focuses on
an exhaustive analytic evaluation at Home Agent (HA) entity of
the proposed solutions. An investigation has been conducted on
the signaling costs to assess the performance of the proposed
scheme (Diff-FH NEMO) in comparison with the standard NEMO
BS protocol and MIPv6 based Route Optimization (MIRON)
scheme. The obtained results demonstrate that, the proposed
scheme (Diff-FH NEMO) significantly improves the signaling
cost at the HA entity in terms of the subnet residence time, number
of mobile nodes, the number of DMRs, the number of LFNs and
the number of CNs