VoLTE/CSFB Call Setup Delay and Handover Analysis

Keyword(s):  
2013 ◽  
Vol 284-287 ◽  
pp. 2855-2859
Author(s):  
Li Te Shen ◽  
Shaw Hwa Hwang ◽  
Chi Jung Huang ◽  
Cheng Yu Yeh

The performance improvement on SIP-based VoIP server is given in this paper. The signaling server “SIP Proxy Server” and media streaming server “Media Relay Server” are applied. Firstly, the performance of VoIP server is analyzed and evaluated in detail. Then the effective method is applied to improve the performance of VoIP server. In the analysis results of SIP Proxy Server, the CPU time for the registration and call-setup sessions need 3.241 ms and 7.985 ms respectively. Moreover, in the Media Relay Server system, when the packet size from 1 to 32 bytes, the maximum throughput of packet is about 82,000 and 16,000 per second for UDP and TCP respectively. The large the packet, the less throughput is tenable. There are three methods applied to improve the performance. The capacity by 31 times is achieved. The capacity with 3,524 calls for each Media Relay Server is achieved. The improved method proposed in this paper is reasonable.


1990 ◽  
Vol 20 (1-5) ◽  
pp. 455-464 ◽  
Author(s):  
Yurdaer N. Doǧanata ◽  
Timothy X. Brown ◽  
Edward C. Posner
Keyword(s):  

2011 ◽  
Vol 15 (10) ◽  
pp. 1126-1128 ◽  
Author(s):  
Sangheon Pack ◽  
Gwangwoo Park ◽  
Younghyun Kim ◽  
Wonjun Lee
Keyword(s):  

2019 ◽  
Vol 3 (1) ◽  
pp. 30
Author(s):  
Mareta Elisabeth ◽  
Pande Ketut Sudiarta ◽  
IGAK Diafari Djuni

In this research, it takes a trace log data with real testing using the Polystar and TrafficNews to know the comparison operator Telkomsel network calls with and without the SCA, as well as performance data call in roaming of Roamware SCA tools to know the Key Performance Indicator (KPI) from the parameters of the Call Setup Success Rate (CSSR) and Call Drop Rate (CDR) then be processed and analyzed to find out the quality of service the influence of SCA implementation calls the overall international operators in the three countries with the highest incoming data so that it could become the next parameter in the repair services provided. Results of the study to the difference between the signals operators are implemented with the SCA system of the inbound roaming customers. CSSR percentage in average in 3 countries, Australia, China, Singapore prior to SCA system in May of 81.48%, while after system restored by SCA of 90.98%, where after the repaired system SCA standard KPIS PT. Telkomsel i.e. normal state – good, whereas the percentage KPI failure calls (CDR) in 3 countries, Australia, China, Singapore prior to SCA system in May of 18.52%, while after the repaired system SCA amounted to 9.02%, where after improved system SCA standard KPI applied PT. Telkomsel into normal state.


1998 ◽  
Vol 2 (4) ◽  
pp. 110-112 ◽  
Author(s):  
Cheng-Shong Wu ◽  
Jin-Chyang Jiau ◽  
Kim-Joan Chen ◽  
M. Choy

2010 ◽  
Vol 17 (4) ◽  
pp. 71-77 ◽  
Author(s):  
Chai-Hien Gan ◽  
Meng-Hsun Tsai ◽  
Yi-Bing Lin
Keyword(s):  

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