Separated street cell model for road-vehicle communications in intelligent transport systems | |
| Author | Le Duc Anh |
| Call Number | AIT Thesis no.TC-03-14 |
| Subject(s) | Mobile communication systems Intelligent Vehicle Highway Systems |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. TC-03-14 |
| Abstract | In recent years interest in ITS (Intelligent Transport System) technology has been growing, because it is thought that ITS could solve problems such as traffic jams and traffic accidents. Road-vehicle communications (RVC) system is one important application of ITS and communications between roadside base stations and vehicle is a critical element of RVC. In this work, the overlapped street cell model of RVC system (now under pilot study by Communication Research Laboratory, Japan) is studied and a modified model, separated street cell, of RVC is proposed with the aim to solve some drawbacks of the previous system. In the previous system, there is a need of too many roadside base stations to fill the road while the cell size is too small (70m) and this leads to a huge cost for RBS (Roadside Base Station). Secondly, there are still overlapped areas between two neighboring cells so more complicated hardware for on-board equipment (OBE) is used to cancel the interference between the cells. In the proposed separated street cell system, there are no overlapped area between the cells so there is no need for the interference cancellation process in OBE to support a full download solution without any loss of information between RBSs and the transceiver in the vehicles. Moreover, by inserting gaps between neighboring cells, the total cost of the system on RBSs decreases. The system configuration and handover procedure in the modified model is presented in this thesis. This work concentrates on estimating the optimum distance between two neighboring cells and the solution for reliable downloading process in separated street cell. In addition, the simulation of downloading process and the buffer behavior is carried out to find the best configuration for the system. Finally, the analysis results of simulation on the new architecture show that the interference and performance is improved in comparison with the previous system. |
| Year | 2003 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. TC-03-14 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Telecommunications (TC) |
| Chairperson(s) | Ahmed, Kazi M.; |
| Examination Committee(s) | Teerapat Sanguankotchakorn ;Erke, Tapio J. ; |
| Scholarship Donor(s) | Government of Finland; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2003 |