Crowdsourcing isn’t all that
A comparative study. Does network independent sensing replace crowdsourced network usage data?
In another post, we discussed how a new sensor gives us visibility into networks at the cell site level — resulting in an outstanding, impartial way of determining the size and density of wireless networks. We found all sorts of market-analysis and development implications in the data. But what about crowdsourced (application-based) data, which captures information from devices operating within the network, such as active channels and device performance? Are these two types of data collection compatible? Which is better than the other?
Network-independent vs. crowdsourcedTo explore fusing these data sets, we compared our dataset of cell locations in Cheyenne, Wyoming with data from a crowdsourced application. Here’s what we learned:
- Our network independent assessment creates a significantly different snapshot of the spectrum landscape.
- Crowdsourced datasets are comprised of individual measurements over several months, while our dataset can be compiled within a few hours.
- In the crowdsourced data, Sprint, Verizon, and Union appear to have no identified cells, or very little. However, we know this to be incorrect.
- The crowdsourced data favors LTE compared to older standards because users are most likely to have LTE phones, whereas our method captures all mobile standards with equal accuracy.
What does all this mean?From these analyses we can see a significant bias in crowd-source datasets, imparted by the users, devices, and the operator’s network. Still, these are useful perspectives for understanding network behavior under real-world conditions. For analyzing infrastructure existence, investment trends, and capacity, however, our network-independent approach shows a more accurate and holistic view of existing wireless infrastructure and the complete RF environment.
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