Dissertation > Excellent graduate degree dissertation topics show

Softswitch network IP transmission quality assessment method study

Author: WangXuWen
Tutor: WangZongXin；GuoZuo
School: Fudan University
Course: Electronics and Communication Engineering
Keywords: Softswitch IP transformation Transmission Quality
CLC: TN929.5
Type: Master's thesis
Year: 2009
Downloads: 79
Quote: 0
Read: Download Dissertation

Abstract


With the issuance of 3G licenses in China,the quantity of softswitch nodes in network has been increasing rapidly,and softswitch technology has also been widely used by major operators.Meanwhile,the benefits of IP bearer in mobile network are more and more widely recognized,which make the IP transformation of mobile network become inevitable.On the other hand,IP bearer also brings new problems for mobile network due to its weakness in QoS control.This thesis described the IP transmission quality impact on softswitch core network,especially on the negative effects of IP delay, jitter,and package loss.The main methods of improving IP transmission quality in mobile networks were introduced,including bandwidth saving, data buffering,package loss processing and admission controlling.Since operator relies on KPI to evaluate the performance of network,after IP transformation of mobile core network,IP related KPI system must be reconstructed,and its evaluation method must be rebuilt.The protocols of IP signaling and IP voice were analyzed,and some suggestions on KPI establishment were given.Statistic sources,as well as calculation methods for both MSC server and MGW were given discussed.Finally,an evaluation method based on end-user perception for IP transmission quality in softswitch network was proposed,A simplified softswitch network in test plant was designed to measure the actual impact of IP delay,jitter and package loss.IP disturbances were added intentionally,and test calls were made.The experimental data obtained in the test could be used for reference as IP disturbance indicator.The method based on end-user perception could also be helpful when complete KPI system is established in the future.

Related Dissertations

  1. Research on Method about Quality Management of VoIP Based on Ericsson’s 3G Softswitch Network,F626
  2. Chengdu Unicom GSM core network evolution Building Advisory Report,TN929.532
  3. The Research of the Traffic Model in the Xinxiang Mobile Company NO.14 Softswitch Terminal Board Expansion Plan,TN929.5
  4. Design and Implementation on Transformation Project of IP Bearer Network Peoject in Hunan Mobile,TN915.02
  5. Research on SME Converged Communications Based on Softswitch and Enterprise Gateway,F626
  6. Softswitch-based the gateway office of engineering design and implementation,TN915.05
  7. Resarch on Voice and Digital Covergence Based on Softswitch,TN915.02
  8. Based on the H.323 IP call center agents with improved terminal to achieve,TN99
  9. The Design of Soft-Switch Gateway for Henan Mobile,TN929.5
  10. The Transformation of Fixed-Line Intelligentization of Quzhou Telecom,TN916.2
  11. Application of the Softswitch Technology in PHS-Network Design and Realization of the QBOX,TN925.93
  12. The Study of Soft-switch IP Phone All-around Operation System,TN916
  13. Construction of telecom softswitch network,TN915.02
  14. Research of Core-Network Disaster Recovery Technology,TN929.5
  15. The mobile softswitch disaster recovery mechanism and engineering to achieve,TN915.05
  16. Research and Improvement of Softswitch Technology for WCDMA Network in Changchun Unicom,TN929.533
  17. Application of network traffic behavior analysis,TP393.06
  18. The Research and Analysis of Soft-Switch Disaster Recovery Technology,TN929.5
  19. Intelligent Upgrading Technology of Fixed-line Communication in Daqing Oil Field,TN916.2
  20. Research and Implementation of Small and Medium-sized Call Center System Based on Softswitch,TN99

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
© 2012 www.DissertationTopic.Net  Mobile