Wireless local loop system and its performance : a case study of the STAREX-WLL system in HCMC, Vietnam | |
| Author | Nguyen Nam Thang |
| Call Number | AIT RSPR no.TC-03-06 |
| Subject(s) | Wireless communication systems--Vietnam--Ho Chi Minh Code division multiple access--Vietnam--Ho Chi Minh |
| 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-03-06 |
| Abstract | CDMA WLL technique based on narrow band IS-95 is the standard that is recognized to be deployed as a solution for the developing countries, especially for a country having low communications infrastrncture like Vietnam. This research focuses on HCMC Starex-Wireless Local Loop system and its performance. Field strength over the coverage areas of this system is measured for some months of the year and then some methods to improve the system coverage are studied. In addition, system traffic data including blocking and throughput parameters are collected for hourly, daily and monthly. Based on these data, some methods are considered in more detail and performed in order to improve throughput of the system (including reduction of co-channel interference). On the other hand, a comparison on system performance between TDMA WLL and CDMA WLL system (in HCMC, Vietnam) also is considered in this research to prepare for continuation of phase two (starting at the end of2003). As position effects of this research, coverage range of the system is extended and number of "coverage holes" is reduced at a minimum level. In addition, the number of unsuccessful calls also decreased with methods shown in chapter four. However, it is necessary to upgrade this narrow band CDMA WLL to provide customers - end-users and network service operators alike - with the best combination of flexibility, modularity, and advanced features. |
| Year | 2003 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. TC-03-06 |
| Type | Research Study Project Report (RSPR) |
| School | School of Advanced Technologies (SAT) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Telecommunications (TC) |
| Chairperson(s) | Ahmed, Kazi M.; |
| Examination Committee(s) | Erke, Tapio J.; Teerapat Sanguankotchakorn; |
| Scholarship Donor(s) | Ho Chi Minh City Post and Telecommunications; |
| Degree | Research report (M.Sc.) - Asian Institute of Technology, 2003 |