Positioning

Positioning arguably applies only to mechanisms that give us a position with coordinates. However, as the most common terms in the research, one can also consider the following as overall location determination mechanisms.

Sometimes used interchangeably with locationing, though it can be argued that locationing is the more general term, since positioning might imply geometric coordinates.

Indoor Postioning System (IPS)
Includes any number of things beyond the scope of this Wiki. The Wikipedia article covers these:

Indoor positioning system on Wikipedia

Wireless Positioning System (WPS)
Wi-Fi Positioning System on Wikipedia

Types of WPS

 * self-positioning: mobile measuring unit and multiple fixed transmitters
 * remote positioning: mobile transmitter and multiple fixed measuring units
 * indirect remote positioning: self-positioning with a wireless data link
 * indirect self positioning: remote positioning with a wireless data link

Geolocation
While sometimes used interchangeably with location sensing or position location or radiolocation, this specifically refers to getting a physical address in latitude and longitude.

Positioning Algorithms

 * Triangulation
 * Scene Analysis
 * Proximity

Criteria for Evaluation
As proposed by one article and commonly used by many others.
 * accuracy
 * precision
 * complexity
 * robustness: how well the system works when some antennas go down, get replaced, get added, etc
 * scalability
 * cost