Kriging is proposed as a tool for Wi-Fi signal strength estimation for complex indoor
environments. This proposal is based on two studies suggesting that kriging might be
suitable for this application. Both of these studies have shortcomings in supporting this
proposal, but their results encourage a more in depth investigation into this.
Even though kriging is a geostatistical method developed for geographical interpolation,
it has been used successfully in a wide range of other applications as well. This further
suggests that kriging might be a versatile method to overcome some of the difficul-
ties of existing signal strength estimation methods. Two main types of signal strength
estimation are deterministic methods and empirical methods. Deterministic methods
are generally very complex and requires input parameters that are difficult to obtain.
Empirical methods are known to have low accuracy which makes them unreliable for
practical use.
Three main investigations are presented in order to evaluate the use of kriging for this
application. A sampling plan is proposed as part of a generic application protocol for
the practical use of kriging for Wi-Fi signal strength. It is concluded that kriging can be
conffidently used as an estimation technique for Wi-Fi signal strength in complex indoor
environments. Kriging is recommended for practical applications, especially where in-
sufficient information is available about a building or where time consuming site surveys
are not feasible. / MIng (Computer and Electronic Engineering), North-West University, Potchefstroom Campus, 2015
| Identifer | oai:union.ndltd.org:NWUBOLOKA1/oai:dspace.nwu.ac.za:10394/15320 |
| Date | January 2014 |
| Creators | Joubert, Petrus Jacobus |
| Source Sets | North-West University |
| Language | English |
| Detected Language | English |
| Type | Thesis |
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