A measurement study on the application-level performance of LTE

Becker, Nico; Rizk, Amr; Fidler, Markus

doi:10.1109/ifipnetworking.2014.6857113

Cited by 52 publications

(24 citation statements)

References 13 publications

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“…In [23], the authors analyzed LTE data collected in one city, to study the impact of protocol and application behaviors on network performance, mostly focusing on the utilization of TCP. Becker et al [28] worked on analysis of application-level performance of LTE, and detected middle-boxes deployed on LTE networks, studying their impact on the measured performance. The most thorough analysis to characterize the behavior and performance impact of deployed proxies on MBB networks was carried out in [29] where the authors enumerate the detailed TCP-level behavior of MBB proxies for various network conditions and Web workloads.…”

Section: Related Workmentioning

confidence: 99%

Speedtest-Like Measurements in 3G/4G Networks: The MONROE Experience

Khatouni

Mellia

Marsan

et al. 2017

2017 29th International Teletraffic Congress (ITC 29)

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Abstract-Mobile Broadband (MBB) Networks are evolving at a fast pace, with technology enhancements that promise drastic improvements in capacity, connectivity, coverage, i.e., better performance in general. But how to measure the actual performance of a MBB solution? In this paper, we present our experience in running the simplest of the performance test: "speedtestlike" measurements to estimate the download speed offered by actual 3G/4G networks. Despite their simplicity, download speed measurements in MBB networks are much more complex than in wired networks, because of additional factors (e.g., mobility of users, physical impairments, diversity in technology, operator settings, mobile terminals diversity, etc.).We exploit the MONROE open platform, with hundreds of multihomed nodes scattered in 4 different countries, and explicitly designed with the goal of providing hardware and software solutions to run large scale experiments in MBB networks. We analyze datasets collected in 4 countries, over 11 operators, from about 50 nodes, for more than 2 months. After designing the experiment and instrumenting both the clients and the servers with active and passive monitoring tools, we dig into collected data, and provide insight to highlight the complexity of running even a simple speedtest. Results show interesting facts, like the occasional presence of NAT, and of Performance Enhancing Proxies (PEP), and pinpoint the impact of different network configurations that further complicate the picture. Our results will hopefully contribute to the debate about performance assessment in MBB networks, and to the definition of much needed benchmarks for performance comparisons of 3G, 4G and soon of 5G networks.

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Section: Related Workmentioning

confidence: 99%

Speedtest-Like Measurements in 3G/4G Networks: The MONROE Experience

Khatouni

Mellia

Marsan

et al. 2017

2017 29th International Teletraffic Congress (ITC 29)

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“…However, such estimations stay blow the bandwidth unless the segment size (and equivalently the video bitrate) is large enough to saturate the network pipeline. This is rarely the case in LTE, which bears large in-network buffers with hundred-millisecond scale endto-end latency [20]. Therefore using throughput to guide video adaptation often underutilizes the network bandwidth.…”

Section: Background and Motivationmentioning

confidence: 96%

piStream

Xie

Zhang

Kumar

et al. 2015

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking

102

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Adaptive HTTP video streaming over LTE has been gaining popularity due to LTE's high capacity. Quality of adaptive streaming depends highly on the accuracy of client's estimation of end-to-end network bandwidth, which is challenging due to LTE link dynamics. In this paper, we present piStream, that allows a client to efficiently monitor the LTE basestation's PHY-layer resource allocation, and then map such information to an estimation of available bandwidth. Given the PHY-informed bandwidth estimation, piStream uses a probabilistic algorithm to balance video quality and the risk of stalling, taking into account the burstiness of LTE downlink traffic loads. We conduct a real-time implementation of piStream on a software-radio tethered to an LTE smartphone. Comparison with state-of-the-art adaptive streaming protocols demonstrates that piStream can effectively utilize the LTE bandwidth, achieving high video quality with minimal stalling rate.

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“…The packet loss rates are 0 and 0.01% in fixed access network and LTE access network, respectively. These parameters are set according to the previous researches [26,27]. The RTT in cellular network varies from 30 ms to Figure 9.…”

Section: Throughput Comparison With the Network-layer Schemementioning

confidence: 99%

MPTCP Tunnel: An Architecture for Aggregating Bandwidth of Heterogeneous Access Networks

Liu¹,

Shan²,

Shu³

et al. 2018

Wireless Communications and Mobile Computing

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Fixed and cellular networks are two typical access networks provided by operators. Fixed access network is widely employed; nevertheless, its bandwidth is sometimes not sufficient enough to meet user bandwidth requirements. Meanwhile, cellular access network owns unique advantages of wider coverage, faster increasing link speed, more flexible deployment, and so forth. Therefore, it is attractive for operators to mitigate the bandwidth shortage by bundling these two. Actually, there have been existing schemes proposed to aggregate the bandwidth of two access networks, whereas they all have their own problems, like packet reordering or extra latency overhead. To address this problem, we design new architecture, MPTCP Tunnel, to aggregate the bandwidth of multiple heterogeneous access networks from the perspective of operators. MPTCP Tunnel uses MPTCP, which solves the reordering problem essentially, to bundle multiple access networks. Besides, MPTCP Tunnel sets up only one MPTCP connection at play which adapts itself to multiple traffic types and TCP flows. Furthermore, MPTCP Tunnel forwards intact IP packets through access networks, maintaining the end-to-end TCP semantics. Experimental results manifest that MPTCP Tunnel can efficiently aggregate the bandwidth of multiple access networks and is more adaptable to the increasing heterogeneity of access networks than existing mechanisms.

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A measurement study on the application-level performance of LTE

Cited by 52 publications

References 13 publications

Speedtest-Like Measurements in 3G/4G Networks: The MONROE Experience

Speedtest-Like Measurements in 3G/4G Networks: The MONROE Experience

piStream

MPTCP Tunnel: An Architecture for Aggregating Bandwidth of Heterogeneous Access Networks

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