상세정보
학술지
P2P Ranging-Based Cooperative Localization Method for a Cluster of Mobile Nodes Containing IR-UWB PHY
- 발행일
- 201312
- 출처
- ETRI Journal, v.35 no.6, pp.1084-1093
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 초록
- The problem of pedestrian localization using mobile nodes containing impulse radio ultra wideband (IR-UWB) is considered. IEEE 802.15.4a-based IR-UWB can achieve accurate ranging. However, the coverage is as short as 30 m, owing to the restricted transmit power. This factor may cause a poor geometric relationship among the mobile nodes and anchor nodes in certain environments. To localize a group of pedestrians accurately, an enhanced cooperative localization method is proposed. We describe a sequential algorithm and define problems that may occur in the implementation of the algorithm. To solve these problems, a batch algorithm is proposed. The batch algorithm can be carried out after performing the sequential algorithm to linearize the nonlinear range equation. When a sequential algorithm cannot be performed due to a poor geometric relationship among nodes, a batch algorithm can be carried out directly. Herein, Monte Carlo simulations are presented to illustrate the proposed method and verify its performance. © 2013 ETRI.
- KSP 제안 키워드
- Cooperative Localization, IEEE 802.15.4a, Impulse Radio Ultra-Wideband(IR-UWB), Impulse radio(IR), Localization method, Mobile node(MN), Monte-Carlo simulation(MCS), Pedestrian localization, Range equation, Sequential algorithm, Transmit power