ATPC: adaptive transmission power control for wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
Real-time deployment of multihop relays for range extension
Proceedings of the 5th international conference on Mobile systems, applications and services
A comprehensive evaluation of indoor ranging using ultra-wideband technology
EURASIP Journal on Wireless Communications and Networking
EURASIP Journal on Wireless Communications and Networking
Measuring indoor mobile wireless link quality
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Proceedings of the 14th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Ad hoc network deployment accommodating short and uncertain transmission range
Proceedings of the 9th ACM international symposium on Mobility management and wireless access
Dynamic deployment in ad hoc networks accommodating uncertain transmission range
Proceedings of the 9th ACM international symposium on Mobility management and wireless access
TriopusNet: automating wireless sensor network deployment and replacement in pipeline monitoring
Proceedings of the 11th international conference on Information Processing in Sensor Networks
Radio link quality estimation in wireless sensor networks: A survey
ACM Transactions on Sensor Networks (TOSN)
Immune-Inspired self healing in wireless sensor networks
ICARIS'12 Proceedings of the 11th international conference on Artificial Immune Systems
Landmarke: an ad hoc deployable ubicomp infrastructure to support indoor navigation of firefighters
Personal and Ubiquitous Computing
Acc: generic on-demand accelerations for neighbor discovery in mobile applications
Proceedings of the 10th ACM Conference on Embedded Network Sensor Systems
Enhancing RSSI-based tracking accuracy in wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
Providing reliable and real-time delivery in the presence of body shadowing in breadcrumb systems
ACM Transactions on Embedded Computing Systems (TECS)
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Breadcrumb systems (BCS) have been proposed to aid firefighters inside buildings by communicating their physiological parameters to base stations outside the buildings. In this paper, we describe the design, implementation and evaluation of an automatic and robust breadcrumb system for firefighter applications. Our solution includes a breadcrumb dispenser with an optimized link estimator that is used to decide when to deploy breadcrumbs to maintain reliable wireless connectivity. The solution includes accounting for realities of buildings and dispensing such as the height difference between where the dispenser is worn and the floor where the dispensed nodes are found. We also include adaptive power management to maintain link quality over time. Experimental results from our study show that compared to the state of the art solution [14], our breadcrumb system achieves 200% link redundancy with only 23% additional deployed nodes. Our deployed crumb-chain can achieve 90% probability of end-to-end connectivity when one node fails in the crumb-chain and over 50% probability of end-to-end connectivity when up to 3 nodes fail in the crumb-chain. In addition, by applying adaptive transmission power control at each node after the crumb-chain deployment, we solve the link quality variation problem by avoiding significant variations in packet reception ratio (PRR) and maintain PRR of over 90% at the link level.