The positioning system based on RSSI is extremely affected by the multipath transmission medium, the signal transmission and shadow. Even changing the angle of the antenna is likely to affect the ranging accuracy. In order to solve the problems above, this paper proposes an indoor optimal positioning algorithm based on Wi-Fi signal strength. It introduces positioning evaluation function, using the optimal algorithm to get a set of path loss exponent to improve the positioning accuracy. Experiment results show that the algorithm can obtain higher positioning accuracy without priori information of indoor environment or additional hardware investment.
목차
Abstract 1. Introduction 2. RSSI Data Processing 2.1. Data Error Processing 2.2. Influence of Path Loss Index on Distance 3. Evaluation Function of Positioning System 4. Optimal Positioning Algorithm 4.1. Primary Positioning based on RSSI 4.2. Optimization Update of Path Loss Index 4.3. Final Location based on RSSI 5. Experiment and Result Analysis 6. Conclusion References
키워드
WiFiRSSIDistance Loss ModelOptimal Positioning
저자
Haibo Liu [ School of Electric Engineering and Automation, Henan Polytechnic University ]
Yujie Dong [ School of Electric Engineering and Automation, Henan Polytechnic University ]
Yongle Ai [ School of Electric Engineering and Automation, Henan Polytechnic University ]
보안공학연구지원센터(IJSH) [Science & Engineering Research Support Center, Republic of Korea(IJSH)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Smart Home
간기
격월간
pISSN
1975-4094
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Smart Home Vol.10 No.12