Cross layer design of network- based fully distributed mobility management for heterogeneous wireless networks
Current mobility protocols; such as MIPv6 and PMIPv6, are deployed in a hierarchical and centralized manner in which a single anchor at the core network handles all mobility signaling and data traffic forwarding. As the core of the mobile network is heavily loaded by inducing excessive traffic, C...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2016
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/66883/1/FK%202016%20163%20IR.pdf |
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| Summary: | Current mobility protocols; such as MIPv6 and PMIPv6, are deployed in a
hierarchical and centralized manner in which a single anchor at the core network
handles all mobility signaling and data traffic forwarding. As the core of the mobile
network is heavily loaded by inducing excessive traffic, Centralized Mobility
Management (CMM) suffers from several issues in scalability, reliability, signaling
overhead and non-optimal routing. Therefore, the IETF introduced a Distribution
Mobility Management (DMM) working group to overcome these issues.
The DMM paradigm involves a flattened IP network architecture in which the
mobility anchor is moved closer to the users and the control and data planes are
distributed at the network edge. The DMM is divided into two categories, partially
and fully DMMs. The aim of this thesis is to design and develop network-based fully
DMM solutions for flat IP architecture by removing any centralized mobility anchor
from network infrastructure. Several solutions for heterogeneous wireless networks
have been proposed based on the cross layer design of layer2 (data link) and layer3
(network). The IEEE Media Independent Handover (MIH) framework and Logical
Interface (LIF) concept are used to abstract the heterogeneity of wireless networks.
First scheme is developed using modified MIH framework to carry the addresses of
active anchored flows, meanwhile; a modified and extended version of PMIPv6 has
been used in the second scheme to carry the addresses of anchored flows. Third
scheme is developed based on further modifications in MIH and PMIPv6 protocols
by excluding client participation in any L2 or L3 wireless mobility signaling. The
LIF concept has been used in the proposing of fourth scheme. Last proposed scheme
develops more flattened architecture by distributing both mobility management and
authentication process during vertical handover procedure.
The analytical modeling and simulation implementation have been used to evaluate
the proposed fully DMM solutions. Analytically, the DMM reports 80% lower data
cost compared to CMM, while simulation shows 37% reduction in the end to end delay compared to CMM in heterogeneous networks. Moreover, MIH based fully
DMM solutions are more complex and show higher signaling cost, handover latency
and packet loss compared to LIF based solutions. However, the MIH based solutions
can provide Quality of Service (QoS) provisioning of future networks. In particular,
MIH based scheme gives an average of 53% lower signaling cost than PDMM, while
LIF based scheme reports 102% reduction in signaling cost compared to MIH based
scheme with client participation. In addition, MIH based scheme without client
participation produces 50% lower handover latency compared to MIH based with
client participation. Moreover, distributed mobility and distributed authentication
scheme reports 52% and 24% packet loss reduction compared to MIH based without
client participation and LIF based schemes, respectively. |
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