The problem of bandwidth estimation has been extensively studied in the wired Internet and recently, in 802.11 wireless networks, however, no tool has been developed so far for cellular networks. Although cellular networks share many common characteristics with 802.11 WLANs, they also have many differences which make it unclear whether tools developed for 802.11 WLANs can also be used in cellular networks. This paper presents the first study of the feasibility of fast bandwidth estimation in 3G

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... networks. We study the applicability of a state-of-the-art probe-based tool for 802.11 WLANs on a commercial 1x EVDO network. We find that estimating bandwidth with a probe-based tool is very difficult in EVDO networks, due to the short-scale dynamics in this type of networks. General Terms Measurement (b) Per second TCP throughput.