R. Mautz

Publications (2)0 Total impact

• Source

  Available from: ac.kr

  Conference Proceeding: On the Effect of Localization Errors on Geographic Routing in Sensor Networks

  B. Peng, R. Mautz, A.H. Kemp, W. Ochieng, Q. Zeng
  [show abstract] [hide abstract]
  ABSTRACT: Recently, network localization systems that are based on inter-node ranges have received significant attention. Geographic routing has been considered an application which can utilize the location information from these localization systems. In this paper, we firstly recognize that sensor network localization algorithms generate positioning data with different error patterns compared to those networks where node positions are determined directly from GNSS measurements. Secondly, by simulating practical sensor network scenarios using data from our localization algorithm, we observe that existing geographic routing algorithms in wireless sensor networks (WSNs) adopt very simplistic methods in the treatment of position error, without due consideration of error distribution. Additionally, an insight is given into localization algorithms for WSNs with inhomogeneous error environments. Our observations represent an initial step toward a detailed understanding and design of efficient geographic routing algorithms in location aware WSNs.
  Communications, 2008. ICC '08. IEEE International Conference on; 06/2008
• Conference Proceeding: iPLOT - An intelligent pervasive location tracking system

  R. Mautz, W. Ochieng, G. Brodin, A. Kemp, B. Peng
  [show abstract] [hide abstract]
  ABSTRACT: The aim of this paper is to discuss the development of an automatic, low-cost system that exploits current or near future wireless communications technology to enable continuous tracking of the location of devices in all environments. The development of such a wireless sensor network involves system design, digital signal processing, protocol development, extraction of ranges and localisation. This paper focuses on the user requirements, system architecture and network positioning. The user requirements are presented with a focus on applications in crime reduction. A high level strategy for the positioning function is presented based on an ad-hoc geodetic network positioning method including issues of accuracy, quality and reliability of the node positions. Results show that it is possible to achieve a position deviation that is of the size of the ranging error.
  Crime and Security, 2006. The Institution of Engineering and Technology Conference on; 07/2006