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首页> 外文会议>Information Networking: Advances in Data Communications and Wireless Networks; Lecture Notes in Computer Science; 3961 >Performance Evaluation of TCP Variants to Downward Vertical Handoff
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Performance Evaluation of TCP Variants to Downward Vertical Handoff

机译：TCP变体向​​下垂直切换的性能评估

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摘要

The behavior of a regular TCP is not good to adjust quickly to the new higher available bandwidth of a newly arrived network after a downward vertical handoff. In this paper, we compare three TCPs by mathematical and simulation analysis to the downward vertical handoff. With mathematical analysis, we compare the link utilization of NewReno TCP, Scalable TCP, and BIC TCP. Among them, the performance of BIC TCP shows best, and it gets better than the other two as RTT increases. With simulation analysis, we compare the throughput of NewReno TCP and BIC TCP. BIC TCP has higher throughput than NewReno TCP, and the performance gain by BIC TCP gets larger with longer RTT. BIC TCP shows the best performance to the downward vertical handoff among the three TCPs. That is because BIC TCP can increase the congestion window size exponentially to find a new available bandwidth with a connection sustained.
机译：在向下垂直切换后，常规TCP的行为不利于快速适应新到达网络的更高可用带宽。在本文中，我们通过数学和仿真分析将三个TCP与向下垂直越区切换进行了比较。通过数学分析，我们比较了NewReno TCP，Scalable TCP和BIC TCP的链路利用率。其中，BIC TCP的性能表现最好，并且随着RTT的增加，它比其他两个性能更好。通过仿真分析，我们比较了NewReno TCP和BIC TCP的吞吐量。 BIC TCP具有比NewReno TCP高的吞吐量，并且BIC TCP的性能增益随着RTT的延长而变得更大。 BIC TCP在三个TCP中的向下垂直切换方面表现出最佳性能。这是因为BIC TCP可以以指数方式增加拥塞窗口的大小，以在维持连接的情况下找到新的可用带宽。

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