Hybrid RSS-AoA technique for 3-D node localization in wireless sensor networks

Tomic, Slavisa; Marikj, Milica; Beko, Marko; Dinis, Rui; Orfao, Nuno

http://hdl.handle.net/10400.8/13319

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Abstract(s)

We consider 3-D target positioning in noncooperative wireless sensor network (WSN) by employing received signal strength (RSS) and angle-of-arrival (AoA) measurements. Based on the least squares (LS) criterion, we derive a novel objective function for solving the hybrid localization problem. Despite the fact that the resulting optimization problem is non-convex, we show that it can be approximated into a convex problem by applying second-order cone programming (SOCP) relaxation. Moreover, we show that the objective function can be written in the form that belongs to the generalized trust region subproblems (GTRS), which can be solved exactly. Our numerical results exhibit remarkable performance of the new approaches, reducing the estimation error for more than 5 m and 3 m, in comparison to the state-of-the-art approach.

Description

ndexed keywords Engineering controlled terms Direction of arrival; Mobile computing; Optimization; RSS; Sensor nodes; Wireless telecommunication systems Engineering uncontrolled terms Angle of arrival; Generalized trust region subproblem; Hybrid localization; Non-cooperative; Received signal strength; Second-order cone programming; Wireless localization Engineering main heading Wireless sensor networks
Conference name 11th International Wireless Communications and Mobile Computing Conference, IWCMC 2015
Conference date 24 August 2015 - 28 August 2015
Article number 7289266

Keywords

Wireless sensor networks Linear programming Maximum likelihood estimation Accuracy Loss measurement Least squares approximations Wireless localization wireless sensor network (WSN) received signal strength (RSS) angle-of-arrival (AoA) second-order cone programming problem (SOCP) generalized trust region subproblem (GTRS) hybrid localization non-cooperative localization

URI

http://hdl.handle.net/10400.8/13319

Citation

S. Tomic, M. Marikj, M. Beko, R. Dinis and N. Órfão, "Hybrid RSS-AoA technique for 3-D node localization in wireless sensor networks," 2015 International Wireless Communications and Mobile Computing Conference (IWCMC), Dubrovnik, Croatia, 2015, pp. 1277-1282, doi: 10.1109/IWCMC.2015.7289266.