MR-BART：多速率可用带宽的实时的估计
MR-BART: Multi-Rate Available Bandwidth Estimation in Real-Time
摘要：
本文提出了多速率实时可用带宽（Multi-Rate Bandwidth Available in Real Time，MR-BART）算法来估计网络路径的端到端可用带宽（Available Bandwidth，AB），该算法是对利用多速率探测包序列和卡尔曼滤波的实时可用带宽（Bandwidth Available in Real Time，BART）算法的扩展。通过与BART算法的比较，证明了该方法比BART算法具有更好的鲁棒性和更快的收敛速度，并且能够获得更精确的AB估计。进一步分析了MR-BART算法的估计误差，得到了基于系统参数的AB估计误差的解析表达式和经验表达式。
英文摘要：
In this paper, we propose Multi-Rate Bandwidth Available in Real Time (MR-BART) to estimate the end-to-end Available Bandwidth (AB) of a network path. The proposed scheme is an extension of the Bandwidth Available in Real Time (BART) which employs multi-rate (MR) probe packet sequences with Kalman filtering. Comparing to BART, we show that the proposed method is more robust and converges faster than that of BART and achieves a more AB accurate estimation. Furthermore, we analyze the estimation error in MR-BART and obtain analytical formula and empirical expression for the AB estimation error based on the system parameters.
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