Fast subspace approach for mobile positioning with time-of-arrival measurements

Mobile station (MS) localisation, which plays an important role in the process of target continuous localisation, has received considerable attention. In this study, a new framework based on subspace approach for positioning an MS at three or more base stations (BSs) with the use of time-of-arrival (TOA) measurements is introduced. It is shown that the proposed approach is a generalisation of the mobile localisation method based on multidimensional scaling (MDS) analysis. Through computer simulations and computational complexity analysis, the authors can see that the proposed algorithm has a comparable performance with conventional MDS localisation method, however, the computational complexity has been greatly reduced.