Nguyen Viet Ha, K. Kumazoe, K. Tsukamoto, M. Tsuru
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引用次数: 6
摘要
TCP/NC (Transmission Control Protocol with Network Coding, TCP/NC)是为了在不重传的情况下恢复丢失的数据包而设计的,以提高在有损网络中的良好传输性能。然而,TCP/NC在某些类型的终端设备中实现成本太高,例如,内存和功率更少。此外,TCP/NC跨无损耗但瘦的网络可能会浪费稀缺的链路带宽,因为有损耗的网络牺牲了冗余的组合数据包。在本文中,我们提出了TCP/NC隧道,在单个TCP/NC流上传输端到端的TCP会话,该流穿过两个特殊网关之间的损耗网络,而不需要对每个流进行管理。我们在Network Simulator 3中实现并验证了我们的建议,其中每个网关都运行我们之前开发的TCP/NC的增强版本。结果表明,所提出的TCP/NC隧道可以减轻端到端TCP会话在有损耗网络中的性能下降,而无需改变每个端主机上的TCP。
Masking lossy networks by TCP tunnel with Network Coding
Transmission Control Protocol (TCP) with Network Coding (TCP/NC) was designed to recover the lost packets without TCP retransmission to improve the goodput performance in lossy networks. However, TCP/NC is too costly to be implemented in some types of end devices, e.g., with less memory and power. In addition, TCP/NC across loss-free but thin networks may waste scarce link bandwidth due to the redundant combination packets sacrificed for the lossy network. In this paper, we propose the TCP/NC tunnel to convey end-to-end TCP sessions on a single TCP/NC flow traversing a lossy network between two special gateways without per-flow management. We implemented and validated our proposal in Network Simulator 3, in which each gateway runs a reinforced version of TCP/NC that we previously developed. The results show that the proposed TCP/NC tunnel can mitigate the goodput degradation of end-to-end TCP sessions traversing a lossy network without any change in TCP on each end host.