Trains travel at speeds ranging from 0 to 80m/s (0 to 288 Km/hr). Providing in-train wireless Internet access to multimedia applications will require the use of a mobile networking protocol, such as Mobile-IP, to achieve uninterrupted connectivity. Although Mobile-IP represents a promising solution, its performance under "extreme" mobility is questionable. We simulated a train scenario and identified the limitations of the current mobile-IP standard in terms of throughput, handoff and packet loss of a train moving at different velocities. We investigated the performance of UDP- and TCP-sessions, and examined the effect of different base station interleaving distances on throughput and packet loss. The results presented in this paper are part of an investigative research into adaptive mobile networking protocols in rapidly mobile networks.
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机译：火车以0到80m / s的速度行驶（0到288 km / hr）。提供列车无线互联网访问多媒体应用需要使用移动网络协议，例如移动IP，以实现不间断的连接。虽然移动IP代表了一个有前途的解决方案，但它在“极端”移动性下的性能是值得怀疑的。我们模拟了火车场景，并确定了在不同速度移动的火车的吞吐量，切换和数据包丢失方面的当前移动-IP标准的局限性。我们调查了UDP和TCP-会话的表现，并检查了不同基站交织距离对吞吐量和丢包的影响。本文提出的结果是在快速移动网络中的自适应移动网络协议的调查研究的一部分。
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