| Author | Panyarat Viravan |
| Call Number | AIT RSPR no. TC-01-11 |
| Subject(s) | Wireless communication systems
|
| Note | A research study submitted in partial fulfillment of the requirements for the degree of
Master of Engineering, School of Advanced Technologies
|
| Publisher | Asian Institute of Technology |
| Series Statement | Research studies project report ; no. TC-01-11 |
| Abstract | In an ad hoc network, all communications is done over the wireless media without
the help of centralized infrastructure. Each transmitter of mobile node has limited
transmission range. As a result, direct link is allowed only between two neighbors that are
in transmission range of each other and the distant nodes have to communicate by multihop
paths. When the ad hoc network is interconnected with wireline network with QoS support,
the extension of QoS application to the ad hoc network is necessary. However, The QoS
routing in an ad hoc network is difficult since the dynamic topology and the uncertain
resources of the links.
This research proposes the probability model to study the probability of QoS
routing in ad hoc wireless network. In the wireless network, a mobile node can enter or exit
the network area at any time. So the probability of joining network area of each node is
considered in the proposed ad hoc model. In addition, the upper bound on the probability
of unicast routing based on the multihop characteristic is calculated for the ad hoc WLAN.
The probability of routing is computed for the case that the mobile nodes are randomly
distributed over the network area with Gaussian distribution. In addition, the overall
performance of the proposed probability model, the effects of the system parameters to the
probability of QoS routing, is studied. The considered system parameters are probability of
joining network area, QoS requirement, and parameters that effect to the probability of
routing which are dispersion index and network size. For the case that the probability of
QoS routing is predefined, the threshold probability and time of joining the network area as
the most adjustable parameter are calculated to achieve the desired probability of QoS
routing. |
| Year | 2001 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. TC-01-11 |
| Type | Research Study Project Report (RSPR) |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Transportation Engineering (DD-TE) |
| Chairperson(s) | Teerapat Sanguankotchakorn; |
| Examination Committee(s) | Ahmed, Kazi M., ;Erke, Tapio; |
| Scholarship Donor(s) | Telephone Organization Thailand ; |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 2001 |