04110nas|a2200493 a 4500 20260817172344.0 060313s2005 th uu|m rtt 0| a1eng d .b11982652 AIT RSPR no.TC-05-16 Nguyen Khanh Tung CDMA network performance improvement : a case study of VP Telecom CDMA 2000-1x network, Vietnam Pathum Thani, Thailand : Asian Institute of Technology, 2005 48 leaves : ill. Research studies project report ; no. TC-05-16 A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies Research report (M.Sc.) - Asian Institute of Technology, 2005 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 CDMA2000-1x network. This research study focuses on methods for performance improvement of VP Telecom CDMA 2000-1x 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 2000-1x 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 down-tilt 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. Code division multiple access Vietnam Ahmed, Kazi Mohiuddin, Chairperson Erke, Tapio J., Examination Committee Electricity of Vietnam, Scholarship donor Asian Institute of Technology. Research studies project report ; no. TC-05-16 Full-text http://203.159.5.9/ait-thesis/detail.php?q=B11121 .b11982652 mnait u 240507 0 060303 m a u 0 mnarc mnarc mnarc mnarc mnait mnait mnarc 20 40 Barcode : 30050120618615 CREATED : 2004-04-10 RECORD # : i12477989 LPATRON : 1020930 LCHKIN : 2008-08-21 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 4 TOT RENEW : 4 Barcode : 30050120618607 CREATED : 2004-04-10 RECORD # : i12477990 LPATRON : 1020467 LCHKIN : 2008-12-14 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 5 TOT RENEW : 5 Barcode : 30050120349872 CREATED : 2016-09-06 RECORD # : i13027694 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050211034672 CREATED : 2021-04-30 RECORD # : i13341236 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050211032619 CREATED : 2021-06-05 RECORD # : i13345552 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050211014070 CREATED : 2022-07-02 RECORD # : i13363128 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050211014088 CREATED : 2022-07-02 RECORD # : i1336313x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 15780 15780 0 0 0 0 MAIN MAIN mnarc 2026-08-17 50.00 0 AIT RSPR no.TC-05-16 30050120618615 2026-08-17 17:23:44 6 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 50.00 0 AIT RSPR no.TC-05-16 30050120618607 2026-08-17 17:23:44 5 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT RSPR no.TC-05-16 30050120349872 2026-08-17 17:23:44 2026-08-17 40 0 0 0 0 MAIN MAIN mnarc 2026-08-17 50.00 0 AIT RSPR no.TC-05-16 30050211034672 2026-08-17 17:23:44 3 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 50.00 0 AIT RSPR no.TC-05-16 30050211032619 2026-08-17 17:23:44 4 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT RSPR no.TC-05-16 30050211014070 2026-08-17 17:23:44 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT RSPR no.TC-05-16 30050211014088 2026-08-17 17:23:44 1 2026-08-17 20