Performance Analysis of TCP over Mobile Networks

• Main Authors: Jui-Ting Weng, 翁睿廷
• Other Authors: 廖婉君
• Format: Others
• Language: en_US
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/86621436567669432301

碩士 === 國立臺灣大學 === 電機工程學研究所 === 93 === Abstract With the growth of wireless technology, wireless network access has become more and more popular. To date, mobile devices such as notebooks, cell phones, and palmtops can connect to the Internet through specific wireless network systems. With the trend of all-IP network evaluation, there are some issues about reliable packet delivery on wireless networks. Since, in IP networks a popular method to provide mobility is mobile IP; the most common traffic type on IP networks is TCP. The performance of TCP over mobile networks may become more and more important. However, TCP is originally designed for wired end-to-end packet delivery, so many TCP mechanisms will have some problems when using them on wireless networks. Such as high wireless link error rates and packet lost due to mobile node handoff. In this paper we propose an analytical model to derive the Reno TCP performance over mobile IP. By carefully observing the handoff effect to TCP congestion window, the effect of handoff on TCP performance could be calculated. Once the influence of handoff has been quantified, it’s easy to apply mobility issue into TCP performance.