Robust System Design Using BILP for Wireless Indoor Positioning Systems

Table 1

Notations.

Sets
	A set of candidate sites (CS) that are locations for installing the reference node (RNs)
	A set of signal test points (STP) that are locations for testing received signal strength
Decision variables
	A binary {0, 1} variable that equals 1 if the RN is installed at site j, jB; 0 otherwise
	A binary {0, 1} variable that equals 1 if the STP i is assigned to RN j, iT and jB; 0 otherwise
Constant parameters
	The RSS that STP i receives from RN j, iT and jB
	The RSS sensitivity threshold
	The sufficient number of RNs installed in the service area
	The accuracy index or the recommended number of RNs that should provide higher accuracy and precision according to [8]
	The reliability index or the number of RNs that provide reliability performance