Optimal Jammer Placement in Wireless Localization Systems
2016 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 64, no 17, 4534-4549 p.Article in journal (Refereed) Published
In this study, the optimal jammer placement problem is proposed and analyzed for wireless localization systems. In particular, the optimal location of a jammer node is obtained by maximizing the minimum of the Cramer-Rao lower bounds (CRLBs) for a number of target nodes under location related constraints for the jammer node. For scenarios with more than two target nodes, theoretical results are derived to specify conditions underwhich the jammer node is located as close to a certain target node as possible, or the optimal location of the jammer node is determined by two of the target nodes. Also, explicit expressions are provided for the optimal location of the jammer node in the presence of two target nodes. In addition, in the absence of distance constraints for the jammer node, it is proved, for scenarios with more than two target nodes, that the optimal jammer location lies on the convex hull formed by the locations of the target nodes and is determined by two or three of the target nodes, which have equalized CRLBs. Numerical examples are presented to provide illustrations of the theoretical results in different scenarios.
Place, publisher, year, edition, pages
2016. Vol. 64, no 17, 4534-4549 p.
Localization, jammer, cramer-rao lower bound, max-min
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-193192DOI: 10.1109/TSP.2016.2552503ISI: 000381434700012ScopusID: 2-s2.0-84982815677OAI: oai:DiVA.org:kth-193192DiVA: diva2:1014975
QC 201610032016-10-032016-09-302016-10-03Bibliographically approved