| Author | Nguyen Khanh Tung |
| Call Number | AIT RSPR no.TC-05-16 |
| Subject(s) | Code division multiple access--Vietnam
|
| 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-05-16 |
| Abstract | CDMA is an advance technology and there are more and more CDMA networks in
the world. VP Telecom is one telecommunication operator in Vietnam which operates a
CDMA2000-lx network. This research study focuses on methods for performance
improvement of VP Telecom CDMA 2000-lx network.
In this research, coverage and system throughput are two factors which are
considered as performance of the network. Many methods have been proposed in order to
improve the two factors. Real data is measured, collected and analyzed from VP Telecom
CDMA 2000-lx network and is used to provide basis for improvement. Besides, some
methods towards optimization for overall network improvement are also studied.
Two methods which are used to improve system coverage are changes of the
transmit power and the antenna height of BTS. These are most popular used methods.
However, the transmit power is always limited in a predefine range, while we cannot
increase the antenna height two much. It is similar with the method of changing the BTS
antenna height for improving system throughput. And, according to the increase of downtilt
angle in order to reduce adjacent channel interference for throughput improvement, the
system coverage will be reduced. Those are drawback of recommended methods for
CDMA network performance improvement. |
| Year | 2005 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. TC-05-16 |
| 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.;Rajatheva, R.M.A.P.; |
| Scholarship Donor(s) | Electricity of Vietnam; |
| Degree | Research report (M.Sc.) - Asian Institute of Technology, 2005 |