IJCSNS International Journal of Computer Science and Network Security, VOL.9 No.1, January 2009
Manuscript received January 5, 2009
Manuscript revised January 20, 2009
A HMRSVP Approach to Support QoS Challenges in
Aisha-Hassan A. Hashim1 , Wan H. Hassan2 , Sulaiman Syed1 & Muhammad A. F. Mudathir1
1Faculty of Engineering, International Islamic University Malaysia
2School of Computer Technology, Sunway University College, Malaysia
The current Internet architecture with its best effort service
model is inadequate for real time applications that need certain
Quality of Service (QoS) assurances. Several QoS models are
proposed, however, these models were proposed for static
environment. The main aim of this paper is to propose a set of
protocols that enable the support of seamless mobility with the
required QoS. To achieve this, first, the current static
environment QoS models are studied, evaluated and compared.
Their limitations to support mobility are identified and discussed.
Second Mobile RSVP (MRSVP) and its extensions Hierarchal
Mobile RSVP (HMRSVP) and Resource Reservation with
Pointer Forwarding (HMRSVPpf) approaches are also studied
and evaluated. It was shown that the main drawback of these
approaches is the scalability issue. Lastly, this paper proposes an
extension to the HMRSVP approach to overcome its drawbacks.
QoS, HMRSVP, MIP.
Mobile IP  as an extension of Internet Protocol (IP) 
has solved the mobility issues for the current best effort
internet services. This protocol gives the node the freedom
to roam in different networks. Mobile IP version 6
(MIPv6)  was proposed as enhancement of Mobile IP,
it solves the problem of triangle routes in Mobile IP by
using the route optimization . Beside the added security
feature, MIPv6 gives the advantage of increasing
addresses that can be used by different networks.
To support real time applications, different QoS