Title :
Sensor Location through Linear Programming with Arrival Angle Constraints
Author :
Gentile, Camillo ; Shiu, John
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg
Abstract :
In previous work, we established a linear programming framework to determine sensor location from measured link distances between neighboring nodes in a network. Besides providing greater accuracy compared to other techniques, linear programs in particular suit large networks since they can be solved efficiently through distributed computing over the nodes without compromising the optimality of the objective function. This work extends our framework to determine sensor location from measured arrival angles instead. An extensive simulation suite substantiates the performance of the algorithm according to several network parameters, including noise up to 15% the maximum error; the proposed algorithm reduces the error up to 84% depending on the noise level.
Keywords :
direction-of-arrival estimation; linear programming; wireless sensor networks; arrival angle constraints; linear programming; noise level; sensor location; Antenna measurements; Constraint optimization; Distributed computing; Goniometers; Linear programming; Noise level; Relays; Temperature sensors; Time measurement; Wireless sensor networks; Convex optimization; Network localization;
Conference_Titel :
Information Sciences and Systems, 2007. CISS '07. 41st Annual Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
1-4244-1063-3
Electronic_ISBN :
1-4244-1037-1
DOI :
10.1109/CISS.2007.4298378