A framework for protocol composition in Horus
Proceedings of the fourteenth annual ACM symposium on Principles of distributed computing
The cricket compass for context-aware mobile applications
Proceedings of the 7th annual international conference on Mobile computing and networking
Dynamic fine-grained localization in Ad-Hoc networks of sensors
Proceedings of the 7th annual international conference on Mobile computing and networking
Localization from mere connectivity
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
HLS: A Framework for Composing Soft Real-Time Schedulers
RTSS '01 Proceedings of the 22nd IEEE Real-Time Systems Symposium
Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
SeRLoc: secure range-independent localization for wireless sensor networks
Proceedings of the 3rd ACM workshop on Wireless security
Radio interferometric geolocation
Proceedings of the 3rd international conference on Embedded networked sensor systems
A high-accuracy, low-cost localization system for wireless sensor networks
Proceedings of the 3rd international conference on Embedded networked sensor systems
Organizing a global coordinate system from local information on an ad hoc sensor network
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
Energy Efficient Sleep Scheduling in Sensor Networks for Multiple Target Tracking
DCOSS '08 Proceedings of the 4th IEEE international conference on Distributed Computing in Sensor Systems
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
A big picture on localization algorithms considering sensor logic location
SMC'09 Proceedings of the 2009 IEEE international conference on Systems, Man and Cybernetics
Resilient localization for sensor networks in outdoor environments
ACM Transactions on Sensor Networks (TOSN)
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
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The node localization problem in Wireless Sensor Networks has received considerable attention, driven by the need to obtain a higher location accuracy without incurring a large, per node, cost (dollar cost, power consumption and form factor). Despite the efforts made, no system has emerged as a robust, practical, solution for the node localization problem in realistic, complex, outdoor environments. In this paper, we argue that the existing localization algorithms, individually, work well for single sets of assumptions. These assumptions do not always hold, as in the case of outdoor, complex environments. To solve this problem, we propose a framework that allows the execution of multiple localization schemes. This "protocol multi-modality" enables robustness against any single protocol failure, due to its assumptions. We present the design of the framework, and show a 50% decrease in localization error in comparison with state of art node localization protocols. We also show that complex, more robust, localization systems can be build from localization schemes that have limitations.