WiMAX (Worldwide Interoperability for Microwave Access) provides wide
transmission range and broadband network services. However, in IEEE 802.16
standard, there is no specific definition for SS (Subscriber Station) to select an
optimal route in a mesh-based WiMAX network. In this thesis, we propose an
Optimal Route Selection Scheme (ORSS) for SS to select a route to its BS (Base
Station). ORSS basically considers three influential factors, the bandwidth SS to be
assigned, the number of interference nodes around SS, and the hop counts to BS. We
also investigate QoS (Quality of Service) issue in a mesh-based WiMAX network; an
SS transferring the rtPS traffic type will share bandwidth with the neighboring SS of
the same level that transmit the same traffic type. To ensure the selected route that can
meet the bandwidth requirements of rtPS and the delay constraints, we estimate the
average transmission delay from SS to BS. For the purpose of evaluation, we establish
a mathematical model to analyze the proposed ORSS and discuss the impact of
varying network parameters on the successful rate of route selection. Through the
Matlab simulation, we validate our mathematical model. The simulation results
demonstrate that our ORSS, in comparison to a previous work, is more effective in
ensuring the delay constraints when selecting a route to transfer rtPS traffic.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0904108-160549 |
| Date | 04 September 2008 |
| Creators | Lee, Yi-Chin |
| Contributors | Sheau-Ru Tong, Tsang-Ling Sheu, Rung-Hung Gau, Tsung-Chuan Huang, Wen-Shyang Hwang |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0904108-160549 |
| Rights | campus_withheld, Copyright information available at source archive |
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