Hierarchical cache design for enhancing TCP over heterogeneous networks with wired and wireless links
Hierarchical cache design for enhancing TCP over heterogeneous networks with wired and wireless links
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DOI：
10.1109/glocom.2000.892026
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发表时间：
2000-11
期刊：
影响因子：
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通讯作者：
Jian-Hao Hu;G. Feng;K. Yeung
中科院分区：
文献类型：
--
作者：
Jian-Hao Hu;G. Feng;K. Yeung
在本文中，我们提出了一个两层的分层缓存架构，以提高TCP性能的异构网络与有线和无线链路。设计了一种新的网络层协议New Snoop。其主要思想是在移动的交换中心（MSG）和基站（BS）缓存未确认的数据包，从而形成一个两层的缓存层次结构。如果分组由于无线链路中的传输错误而丢失，则BS负责恢复丢失。当在TCP连接会话期间发生切换时，缓存在MSC中的分组可以帮助最小化由于暂时断开而导致的重传延迟。仿真结果表明，使用新的Snoop是显着更强大的处理不可靠的无线墨水和Snoop方案（Balakrishnan等人，1995年）相比，以及其他现有的TCP增强。
In this paper, we propose a two-layer hierarchical cache architecture for enhancing TCP performance over heterogeneous networks with both wired and wireless links. A new network-layer protocol, called New Snoop, is designed. The main idea is to cache the unacknowledged packets at both the mobile switch center (MSG) and base station (BS), thus forming a two-layer cache hierarchy. If a packet is lost due to transmission errors in the wireless link, the BS takes the responsibility to recover the loss. When a handoff occurs during a TCP connection session, the packets cached in MSC can help to minimize the latency of retransmissions due to temporal disconnection. Simulation results show that using New Snoop is significantly more robust in dealing with unreliable wireless inks and handoffs as compared with the Snoop scheme (Balakrishnan et al. 1995) as well as other existing TCP enhancements.