A system for wireless location estimation of a mobile node using radio transceivers with polarization diversity, said system comprising: - a plurality of fixed transmission means at a plurality of pre-defined fixed reference nodes (R1, R2, R3, R4) distributed over a predetermined area adapted to transmit fixed reference signals; - a mobile node transmission means at said mobile node adapted to transmit mobile reference signals with respect to said mobile node and said plurality of pre-defined fixed reference nodes (R1, R2, R3, R4) with fixed reference signals; - a horizontal polarization means adapted to horizontally polarize said transmitted mobile reference signals; - a vertical polarization means adapted to vertically polarize said transmitted mobile reference signals; - a receiver means adapted to receive said horizontally polarized signals and said vertically polarized signals; - a measurement means adapted to measure signal strength of said received horizontally polarized signals and said vertically polarized signals; - a derivation means adapted to derive a range of said received polarized signals; - a profile creation means adapted to create a profile of said derived range with reference to said measured signal strength, said system characterized by said profile creation means further comprising a quadrature combining means adapted to create a profile by quadrature combining said measured signal strength from said horizontally polarized signals and said vertically polarized signals; and - a trilateration means adapted to employ a trilateration algorithm with virtual sampling to determine localization of said mobile node using said created profile, thereby providing the location estimation of said mobile node, the virtual sampling adapted to reduce the error in the estimated localization of said mobile node; - wherein said trilateration means is a selection based trilateration means, whereby, with d1, d2, d3 and d4 being distances of the mobile node from each of the correspondingly numbered plurality of pre-defined fixed reference nodes R1, R2, R3, R4, the system is configured to use a triplet combination of three of the distances dl,d2,d3 and d4 to estimate the absolute location of the mobile node using trilateration, wherein the available triplet combinations for location estimation of the mobile node are the triplets: d1,d2,d3; d1,d3,d4; d1,d2,d4; and d2,d3,d4. - a plurality of fixed transmission means at a plurality of pre-defined fixed reference nodes (R1, R2, R3, R4) distributed over a predetermined area adapted to transmit fixed reference signals; - a mobile node transmission means at said mobile node adapted to transmit mobile reference signals with respect to said mobile node and said plurality of pre-defined fixed reference nodes (R1, R2, R3, R4) with fixed reference signals; - a horizontal polarization means adapted to horizontally polarize said transmitted mobile reference signals; - a vertical polarization means adapted to vertically polarize said transmitted mobile reference signals; - a receiver means adapted to receive said horizontally polarized signals and said vertically polarized signals; - a measurement means adapted to measure signal strength of said received horizontally polarized signals and said vertically polarized signals; - a derivation means adapted to derive a range of said received polarized signals; - a profile creation means adapted to create a profile of said derived range with reference to said measured signal strength, said system characterized by said profile creation means further comprising a quadrature combining means adapted to create a profile by quadrature combining said measured signal strength from said horizontally polarized signals and said vertically polarized signals; and - a trilateration means adapted to employ a trilateration algorithm with virtual sampling to determine localization of said mobile node using said created profile, thereby providing the location estimation of said mobile node, the virtual sampling adapted to reduce the error in the estimated localization of said mobile node; - wherein said trilateration means is a selection based trilateration means, whereby, with d1, d2, d3 and d4 being distances of the mobile node from each of the correspondingly numbered plurality of pre-defined fixed reference nodes R1, R2, R3, R4, the system is configured to use a triplet combination of three of the distances dl,d2,d3 and d4 to estimate the absolute location of the mobile node using trilateration, wherein the available triplet combinations for location estimation of the mobile node are the triplets: d1,d2,d3; d1,d3,d4; d1,d2,d4; and d2,d3,d4. d1,d2,d3; d1,d3,d4; d1,d2,d4; and d2,d3,d4.