Title page for ETD etd-05092012-132554


Type of Document Dissertation
Author Li, Yinan
URN etd-05092012-132554
Title Integrated Mobility and Service Management for Network Cost Minimization in Wireless Mesh Networks
Degree PhD
Department Computer Science
Advisory Committee
Advisor Name Title
Chen, Ing-Ray Committee Chair
Gracanin, Denis Committee Member
Lu, Chang-Tien Committee Member
Rahmandad, Hazhir Committee Member
Ramakrishnan, Naren Committee Member
Keywords
  • mobile multicast services
  • cache consistency management
  • mobile data access
  • integrated mobility and service management
  • wireless mesh networks
  • performance analysis
  • security
Date of Defense 2012-04-30
Availability unrestricted
Abstract
In this dissertation research, we design and analyze integrated mobility and service manage-

ment for network cost minimization in Wireless Mesh Networks (WMNs). We first investigate the

problem of mobility management in WMNs for which we propose two efficient per-user mobility

management schemes based on pointer forwarding, and then a third one that integrates routing-

based location update and pointer forwarding for further performance improvement.

We further study integrated mobility and service management for which we propose protocols

that support efficient mobile data access services with cache consistency management, and mobile

multicast services. We also investigate reliable and secure integrated mobility and service man-

agement in WMNs, and apply the idea to the design of a protocol for secure and reliable mobile

multicast. The most salient feature of our protocols is that they are optimal on a per-user basis

(or on a per-group basis for mobile multicast), that is, the overall network communication cost

incurred is minimized for each individual user (or group). Per-user based optimization is critical

because mobile users normally have vastly different mobility and service characteristics. Thus, the

overall cost saving due to per-user based optimization is cumulatively significant with an increasing

mobile user population.

To evaluate the performance of our proposed protocols, we develop mathematical models and

computational procedures used to compute the network communication cost incurred and build

simulation systems for validating the results obtained from analytical modeling. We identify optimal

design settings under which the network cost is minimized for our mobility and service management

protocols in WMNs. Intensive comparative performance studies are carried out to compare our

protocols with existing work in the literature. The results show that our protocols significantly

outperform existing protocols under identical environmental and operational settings.

We extend the design notion of integrated mobility and service management for cost minimiza-

tion to MANETs and propose a scalable dual-region mobility management scheme for location-

based routing. The basic design concept is to use local regions to complement home regions and

have mobile nodes in the home region of a mobile node serve as location servers for that node. We

develop a mathematical model to derive the optimal home region size and local region size under

which overall network cost incurred is minimized. Through a comparative performance study, we

show that dual-region mobility management outperforms existing mobility management schemes

based on static home regions.

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