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首页> 外文会议>18th International Symposium on Computer and Information Sciences - ISCIS 2003; Nov 3-5, 2003; Antalya, Turkey >Transport Protocol Mechanisms for Wireless Networking: A Review and Comparative Simulation Study
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Transport Protocol Mechanisms for Wireless Networking: A Review and Comparative Simulation Study

机译：无线网络的传输协议机制：综述和比较仿真研究

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摘要

Increasing popularity of wireless services has triggered the need for efficient wireless transport mechanisms. TCP, being the reliable transport level protocol widely used in wired network world, was not designed with heterogeneity in mind. The problem with the adaptation of TCP to the evolving wireless settings is because of the assumption that packet loss and unusual delays are mainly caused by congestion. TCP originally assumes that packet loss is very small. On the other hand, wireless links often suffer from high bit error rates and broken connectivity due to handoffs. A range of schemes, namely end-to-end, split-connection and link-layer protocols, has been proposed to improve the performance of transport mechanisms, in particular TCP, on wireless settings. In this study, we examine these mechanisms for wireless transport, and discuss our comparative simulation results of end-to-end TCP versions (Tahoe, Reno, NewReno and SACK) in various network settings including wireless LANs and wired-cum-wireless scenarios.
机译：无线服务的日益普及触发了对有效无线传输机制的需求。 TCP是在有线网络世界中广泛使用的可靠传输级别协议，在设计时并没有考虑到异构性。 TCP适应不断发展的无线设置的问题是因为这样一种假设，即丢包和异常延迟主要是由拥塞引起的。 TCP最初假设数据包丢失非常小。另一方面，无线链路通常会因切换而遭受高误码率和断开连接的困扰。已经提出了一系列方案，即端到端，分离连接和链路层协议，以改善无线设置上的传输机制，特别是TCP的性能。在这项研究中，我们研究了这些无线传输机制，并讨论了在包括无线LAN和有线暨无线方案在内的各种网络设置下，端到端TCP版本（Tahoe，Reno，NewReno和SACK）的比较模拟结果。

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