| 摘要: |
| MobileIP协议中原有的硬切换算法产生的分组丢失和切换时延大大降低了用户的通信质量，半软切换算法是硬切换的改进算法，本文通过仿真比较了Mobile IP协议中硬切换和半软切换对TCP和UDP流量的影响，并进一步研究了影响半软换性能的因素。 |
| 关键词: 移动因特网 半软切换 仿真 移动节点 硬切换 IP协议 TCP UDP |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:April 30, 2002 |
| 基金项目:国家重大自然科学基金资助项目 (项目编号 :6 9896 2 4 0 ) |
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| Simulation Evaluation of Semi-soft Handoff in Mobile Internet |
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| Abstract: |
| The hard handoff in Mobile IP introduces considerable packet loss and handoff delay, which greatly decreases the QoS. Semi-handoff is the improved version of Mobile IP handoff. This paper compares the performances of hard and semi-soft handoffs on TCP and UDP by simulation and analyses the factor affecting the performances of semi-soft handoff. |
| Key words: Mobile Internet,MN,Hard handoff,Semi-soft handoff,Simulation |
