A mobility management scheme for proxy mobile IPv6 wireless sensor networks
Internet of Thing (IoT) or also referred to as Internet Protocol (IP) enabled Wireless Sensor Network (IP-WSN) is a rich area of research. This is due to the rapid growth in a wide spectrum of critical application domains. However, the properties within these systems such as memory size, processi...
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
2019
|
| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/83795/1/FSKTM%202019%204%20-%20ir.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Internet of Thing (IoT) or also referred to as Internet Protocol (IP) enabled Wireless
Sensor Network (IP-WSN) is a rich area of research. This is due to the rapid
growth in a wide spectrum of critical application domains. However, the properties
within these systems such as memory size, processing capacity and power
supply has led to imposing constraints on IP-WSN applications and its deployment
in the real world. Consequently, IP-WSNs is constantly faced with issues
related to the complexity which arises due to IP mobility management. IP mobility
management protocols, which have evolved from host-based to network-based
protocols, are utilized as a mechanism to resolve these issues. The presence
of both types of solutions is dominant but depended on the nature of systems
being deployed. Features of IoT are inclined more towards the network-based
solutions due to the objective of reducing involvement of the Mobile Node(MN)
especially in the mobility signaling. The wide spectrum of strategies derived to
achieve enhanced performance evidently displays superiority in performance.
Proxy Mobile IPv6 (PMIPv6) and its derivation protocols are designed to achieve
a seamless handover when the MN moves among two different networks by
transferring the mobility management responsibility to new mobility entities,
named the Local Mobility Anchor (LMA) and Mobile Access Gateway (MAG).
However, PMIPv6 heavily relies upon manipulating the MNs that are associated
to a specific MAG individually. In addition, the PMIPv6 protocol lacks the support of efficient buffer resource utilization mechanisms. Such mechanism does not
appear to be enough to solve the issue of latency of the mobility-related signaling
during the MNs motion,thus, resulting in increasing the MAG load probability,
inevitable packet loss, session disruption and negative effect on the MN’s communication
performance.
Accordingly, the goal of this research is to improve the efficiency of MNs and
hence the overall system performance via addressing the latency issue. Associating
the MNs to a specific MAG inside the PMIPv6 network and ignoring the
multi-level domain increase the MAG load probability. Thus, designing an efficient
load balancing mechanism on the Clustered PMIPv6 (LB-CSPMIPv6) to
balance the loads equally between the MAGs within the PMIPv6 domain is necessary.
Hence, by means of load distribution among the MAGs, this mechanism
is able to avoid the overloaded issue among the MAGs by utilizing the load status
of the MAGs, the domain number and the strength signaling. The LB-CSPMIPv6
mechanism has been proven to improve the system performance latency by reducing
the queuing delay when compared with the previous works.
In addition, the mobility-related signaling is processed individually for each MN
that enters the PMIPv6 domain. Thus, if the MNs come simultaneously or moving
in a group, the PMIPv6 still have to process them separately one after another,
which causes serious issues such as long handover latency and high singling
cost. Hence, the MN’s session might be affected negatively. Accordingly,
this work proposes a new scheme named, an Enhanced Cluster-based PMIPv6
protocol (E-CSPMIPv6), which combines the mobility-related messages in one
message for a group of MNs instead of performing it individually. This Scheme
achieves a better performance in terms of handover latency and signaling cost
compared with to the base work.
Furthermore, to achieve an effecting buffer utilization, we propose an Enhanced
PMIPv6 (AE-PMIPv6) scheme. AE-PMIPv6 manages the MNs information in
one Binding Cash Entry (BCE) instead of creating a BCE for every MN inside the
PMIPv6 domain. The AE-PMIPv6 efficiently addresses the memory occupation
inside the PMIPv6 domain, which leads to improve the overall system performance.
Hence, by means of the proactive load MAGs status with the respective
LMAs in the LB-CSPMIPv6, manipulating a group of MNs simultaneously and
efficiently utilizing the buffer resources in the PMIPv6 domain respectively, these
schemes are able to balance the load among the MAGs, provide a seamless handover
and utilize the MNs binding information as well as enhancing the perceived
quality of communication during the MN roaming. The superiority of this scheme
has been achieved in terms of buffering cost compared to the counterpart works.
Extensive simulation experiments and analytical analysis models through the
Network Simulator (NS2) have been developed and performed with respect to
various PMIPv6 wireless network environments and scenarios. The simulation results demonstrate that the proposed schemes significantly increase the overall
system performance. This enhancement satisfies the mobile users Quality of
Service (QoS) requirements in terms of handover latency, buffer cost, signaling
cost, queuing delay and load balancing. |
|---|