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V. Raida, P. Svoboda, M. Rupp:
"Constant Rate Ultra Short Probing (CRUSP) Measurements in LTE Networks";
Talk: 2018 IEEE 88th Vehicular Technology Conference (VTC2018-Fall), Chicago, IL, USA; 2018-08-27 - 2018-08-30; in: "2018 IEEE 88th Vehicular Technology Conference (VTC2018-Fall)", IEEE (ed.); (2018), 5 pages.

Downlink throughput measurements in cellular mobile networks are of interest not only for researchers but also for mobile network operators and end-users. Conventional smartphone applications measure the throughput by downloading as much data as possible for a predefined duration, consuming tens of megabytes per measurement and blocking Internet connections for several seconds. Fast low-volume probing saves users' data. It also allows for more frequent measurements, leading to higher spatial resolution along a measurement path, e.g. in case of vehicular measurements. Self-driving cars require reliable connections; swift measurements would enable a constant monitoring without severe service interruptions.

We analyze a possible reduction of data volume per test and compare the estimated throughput to a conventional, heavy load smartphone app. Measurements with a user equipment (UE) in live cellular mobile networks have a potential of characterizing real users' experience but suffer from limited repeatability (small-scale fading, quickly changing cell load, varying interference from neighbouring cells). To circumvent this restriction we performed measurements in a controlled LTE cell.

We show that CRUSP (constant rate ultra short probing) achieves throughput estimates comparable to conventional apps in much shorter time (less than 50 ms) requiring much lower data volume (less than 2 MB).
Whereas not an issue for high data volumes and long test durations, in the case of low volumes and short durations more careful processing - considering individual bursts of data - is crucial.

Downlink throughput measurements in cellular mobile networks are of interest not only for researchers but also for mobile network operators and end-users. Conventional smartphone applications measure the throughput by downloading as much data as possible for a predefined duration, consuming tens of megabytes per measurement and blocking Internet connections for several seconds. Fast low-volume probing saves users' data. It also allows for more frequent measurements, leading to higher spatial resolution along a measurement path, e.g. in case of vehicular measurements. Self-driving cars require reliable connections; swift measurements would enable a constant monitoring without severe service interruptions.

We analyze a possible reduction of data volume per test and compare the estimated throughput to a conventional, heavy load smartphone app. Measurements with a user equipment (UE) in live cellular mobile networks have a potential of characterizing real users' experience but suffer from limited repeatability (small-scale fading, quickly changing cell load, varying interference from neighbouring cells). To circumvent this restriction we performed measurements in a controlled LTE cell.

We show that CRUSP (constant rate ultra short probing) achieves throughput estimates comparable to conventional apps in much shorter time (less than 50 ms) requiring much lower data volume (less than 2 MB).
Whereas not an issue for high data volumes and long test durations, in the case of low volumes and short durations more careful processing - considering individual bursts of data - is crucial.

cellular mobile networks,LTE,downlink,measurements,throughput,data rate,bursts,minimum rate probing

https://publik.tuwien.ac.at/files/publik_271502.pdf