상세정보
학술대회
A Study on the Enhancement of Positioning Accuracy Performance Using Interrogator Selection Schemes over Indoor Wireless Channels
- 저자
- 박승근, 강병권
- 발행일
- 201012
- 출처
- International Conference on Future Generation Communication and Networking (FGCN) 2010 (CISS 120), v.120, pp.335-342
- 협약과제
- 10MR1300, 안전한 전자파환경 조성, 최형도
- 초록
- In this paper, two kinds of interrogator selection schemes named as random interrogator selection and hybrid interrogator selection methods are considered to enhance the positioning accuracy under indoor wireless LAN environments and the performances are compared with those of the conventional methods called as normal and reference interrogator selection schemes. These interrogator selection schemes are based on received signal strength(RSS) levels and trilateration method. A testbed was set up to measure and compare the positioning estimation error of the considered methods and previous conventional ones. The experiments results showed that the accuracy of location estimation was enormously improved with the hybrid method as much as 3m especially in a hostile environment with some obstacles. Meanwhile, the differences of estimation errors are not so much (< 0.2m) without obstacle conditions among the four kinds of interrogator selection methods. © 2010 Springer-Verlag Berlin Heidelberg.
- KSP 제안 키워드
- Accuracy of location, Accuracy performance, Conventional methods, Hostile Environment, Location Estimation, Obstacle Conditions, Positioning accuracy, Radio signal strength(RSS), Selection method, Set up, Wireless Local Area Networks(WLANs)