Impact of handover between UMTS and GPRS on TCP/IP: an empirical approach

被引：0
|
作者：
Gomez, C. [1 ]
Catalan, M. [1 ]
Figueras, X. [1 ]
Paradells, J. [1 ]
Calveras, A. [1 ]
机构：
[1] Tech Univ Catalonia UPC, Entel Dept, Wireless Networks Grp, Barcelona 08034, Spain
来源：
2006 IEEE 64TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2006年
关键词：
UMTS; GPRS; intersystem handover; TCP/IP; empirical study;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Availability of GPRS and UMTS networks constitutes a significant piece in the path towards a ubiquitous Internet. To ensure continuity of service, handover from UMTS to GPRS (U2G) and Ace versa (G2U) is a key feature for mobile operators and user experience. This paper presents an empirical study on the impact of InterSystem HandOver (ISHO) over the TCP/IP protocol suite. Trial; include a variety of different conditions, such as two mobile operators' GPRS and UMTS public networks, uplink and downlink data transmissions, as well as indoor and outdoor scenarios. Measurements have been performed at both IP and TCP layers. Results show that significant connectivity gaps, dramatically increased delays and varying amounts of losses take place as a result of ISHO. We describe the harmful effects of such phenomena on TCP.
引用
收藏
页码：2733 / 2737
页数：5
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