AI SearchCDMA2000-1X system performance improvement : (Record no. 15783)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04424nas|a2200457 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817172344.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 060926s2006 th uu|m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11994046 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT RSPR no.TC-06-11 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Ngo Binh Minh |
| 245 10 - TITLE STATEMENT | |
| Title | CDMA2000-1X system performance improvement : |
| Remainder of title | a case study of EVNT's mobile system, Vietnam |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2006 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 101 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Research studies project report ; |
| Volume/sequential designation | no. TC-06-11 |
| 500 ## - GENERAL NOTE | |
| General note | A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 2006 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | In this research, performance of EVNT's CDMA2000-1X (Electricity of Viet Nam Telecom) mobile network in Hue province is evaluated based on investigation of traffic data measured on the radio channels by drive test and on-site statistical data. By studying the traffic data, we see that the performance of system is not met with the pre-defined criteria. Through an analysis of the traffic data, methods to improve the system performance are recommended and carried out. Firstly, the performance of the system can be greatly improved through coverage improvement with an adjustment of cell layout and antenna configuration. Coverage improvement is not only the increase in coverage range but also the improvement of signal strength at street level or in-building to avoid "coverage holes". Secondly, the system performance can be slightly improved by fine tuning system parameters such as neighbor list, access parameters and handoff parameters. The result of practical works carried out in EVNT's CDMA2000-1X show that, by adjustments of cell layout (like adding cells, repositioning cells) and antenna configuration, the call access failure rate and call drop rate decrease greatly from 6.45% and 2% to 3.7% and 1.57% respectively. By fine tuning system parameters, these above mentioned metrics continuously fall to 3.5% and 1.46% accordingly. Furthermore, the voice quality is also much improved after network adjustments, representing by the decrease of FER. Besides methods to improve the system performance, network planning for expansion of EVNT's CDMA2000-lx is also mentioned in this research study. Through link budget calculation and base station capacity, we can estimate the number of sites needed for expansion of network in 14 Mekong delta provinces. By utilizing network planning tool, we can not only obtain position, and antenna configuration of the sites but also Ec/lo pilot coverage plots, handoff status plots, forward link noise plots etc. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Code division multiple access |
| Geographic subdivision | Vietnam |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ahmed, Kazi Mohiuddin, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Erke, Tapio J., |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Rajatheva, R.M.A.P, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Electricity of Vietnam, |
| Relator term | Scholarship donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Research studies project report ; |
| Volume/sequential designation | no. TC-06-11 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B10290">http://203.159.5.9/ait-thesis/detail.php?q=B10290</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11994046 |
| b | mnait |
| c | u |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240508 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 060926 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | u |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
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| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | 50.00 | AIT RSPR no.TC-06-11 | 30050120618276 | 17/08/2026 | 4 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | 50.00 | AIT RSPR no.TC-06-11 | 30050120618268 | 17/08/2026 | 3 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT RSPR no.TC-06-11 | 30050120350045 | 17/08/2026 | 17/08/2026 | 40-Archives | ||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT RSPR no.TC-06-11 | 30050120570089 | 17/08/2026 | 2 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT RSPR no.TC-06-11 | 30050120570097 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication |