论文信息 - A Study on the Indoor Real-Time Tracking System to Reduce the Interference Problem

A Study on the Indoor Real-Time Tracking System to Reduce the Interference Problem

The real-time tracking system is an essential component in the development of low cost sensor networks to be used in pervasive and ubiquitous computing. In this paper we address the interference problem of the sensor network platform that uses ultrasonic for location tracking. We also present a novel scheme reducing the error rate caused by interference, which is particularly suited for supporting context-aware computing. It is achieved by considering the speed variance of the mobile node and thereby correcting the interference errors. Performance evaluation using an actually implemented platform, Pharos, reveals that the proposed scheme outperforms the three existing schemes. It also identifies that error rate decreases as the number of packets transmitted for distance estimation increases, while it increases as the speed of the mobile node increases.

Hee Yong Youn | Byunghun Song | Hyung Su Lee

[1] Deborah Estrin,et al. Complex Behavior at Scale: An Experimental Study of Low-Power Wireless Sensor Networks , 2002 .

[2] Paramvir Bahl,et al. RADAR: an in-building RF-based user location and tracking system , 2000, Proceedings IEEE INFOCOM 2000. Conference on Computer Communications. Nineteenth Annual Joint Conference of the IEEE Computer and Communications Societies (Cat. No.00CH37064).

[3] Leonidas J. Guibas,et al. A dual-space approach to tracking and sensor management in wireless sensor networks , 2002, WSNA '02.

[4] Gaetano Borriello,et al. SpotON: An Indoor 3D Location Sensing Technology Based on RF Signal Strength , 2000 .

[5] John Anderson,et al. Wireless sensor networks for habitat monitoring , 2002, WSNA '02.

[6] Hari Balakrishnan,et al. 6th ACM/IEEE International Conference on on Mobile Computing and Networking (ACM MOBICOM ’00) The Cricket Location-Support System , 2022 .