Chia-Ho Ou
National Pingtung University
22 Papers
129 Citations
Chia-Ho Ou is an academic researcher from National Pingtung University. The author has contributed to research in topics: Wireless sensor network & Key distribution in wireless sensor networks. The author has an hindex of 10, co-authored 17 publications. Previous affiliations of Chia-Ho Ou include National Pingtung Institute of Commerce & National Cheng Kung University.
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Papers
Localization with mobile anchor points in wireless sensor networks
TL;DR: A range-free localization scheme using mobile anchor points equipped with the GPS moves in the sensing field and broadcasts its current position periodically, so that no extra hardware or data communication is needed for the sensor nodes.
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Sensor Position Determination with Flying Anchors in Three-Dimensional Wireless Sensor Networks
Chia-Ho Ou,Kuo-Feng Ssu +1 more
TL;DR: This paper presents a range-free position determination (localization) mechanism for sensors in a three-dimensional wireless sensor network based on the use of flying anchors that outperforms both Centroid and Constraint in terms of a higher location accuracy, a reduced localization time, and a lower beacon overhead.
125
Path Planning Algorithm for Mobile Anchor-Based Localization in Wireless Sensor Networks
Chia-Ho Ou,Wei-Lun He +1 more
TL;DR: A path planning scheme, which ensures that the trajectory of the mobile anchor node minimizes the localization error and guarantees that all of the sensor nodes can determine their locations, and a obstacle-resistant trajectory is proposed to handle the obstacles in the sensing field.
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A Localization Scheme for Wireless Sensor Networks Using Mobile Anchors With Directional Antennas
TL;DR: The results show that the proposed localization scheme achieves a reduced localization error and a lower energy consumption than existing range-free solutions based on mobile anchor nodes over a wide range of typical network conditions.
116
A roadside unit‐based localization scheme for vehicular ad hoc networks
TL;DR: A VANET localization scheme in which each vehicle estimates its location on the basis of beacon messages broadcast periodically by pairs of RSUs deployed on either side of the road, which achieves a lower localization error and is robust toward changes in the traffic density and the vehicle speed.
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