A Bandwidth Adaptive Method for Estimating End-to-End Available Bandwidth
The Probe Gap Model (PGM) was proposed as a lightweight and fast available bandwidth estimation method. Compared to the Probe Rate Model (PRM) which requires multiple iterations with different probing rates, PGM uses a single probing rate and infers the available bandwidth from the relationship between the input and output rates of probing packet pairs. In this paper, we proved that PGM is accurate for multihop path under the case of path persistent cross traf.c, and even for the one-hop persistent case, we show that PGM can be accurate as long as the input probing rate is set properly. According to our analysis, a bandwidth adaptive method is introduced by adjusting the input probing rate. The measurement results show that the improved Spruce algorithm is more accurate than the original one and can estimate the end-to-end available bandwidth accurately.
Network capacity available bandwidth packet pair dispersion Probe Gap Model Probe Rate Model cross traffic
Dawei XU Depei QIAN
Dept.of Computer Science and Technology Xian Jiaotong University Xian,710049,China Dept.of Computer Science and Technology Xian Jiaotong University Xian,710049,China;Sino-German Joi
国际会议
广州
英文
2008-11-19（万方平台首次上网日期，不代表论文的发表时间）