Entropy-based sensor selection heuristic for target localization
Proceedings of the 3rd international symposium on Information processing in sensor networks
Estimation from lossy sensor data: jump linear modeling and Kalman filtering
Proceedings of the 3rd international symposium on Information processing in sensor networks
Attacks on public WLAN-based positioning systems
Proceedings of the 7th international conference on Mobile systems, applications, and services
Adaptive subcarrier allocation and bit loading for voice-data transmission in multiuser OFDM systems
Wireless Communications & Mobile Computing
New adaptive bit allocation algorithms for multiuser OFDM/CDMA systems
Wireless Networks
Algorithms for optimal scheduling and management of hidden Markovmodel sensors
IEEE Transactions on Signal Processing
Kalman filtering for multiple time-delay systems
Automatica (Journal of IFAC)
Proceedings of the Fourth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness
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There has been a research focus recently on developing indoor positioning systems (IPS) that can support tracking and evacuation in case of emergency. Real-time positioning, target tracking and mobile agent communication are important operations in evacuation planning and management in non-open environments such as indoor, urban and underground areas. However, these are challenging tasks since the performance of GPS and other conventional sensing technologies for positioning and target tracking are either limited or even non-existent due to serious effects of radio signal fading and multiple path interference. This paper investigates and proposes an effective methodology using ultra wideband (UWB) technology to develop a robust and self-organized mobile ad hoc sensor network. Such network is able to provide integrated capability of real-time accurate position tracking and voice/data communications in support of emergency rescue operations in critical complex environments. We present a prototype of UWB IPS for real-time positioning, target tracking and communication support. The system design and installation are presented in detail and the performance of the system is evaluated through test-beds based on some scenarios.