000 | 00000nam c2200205 c 4500 | |
001 | 000045897602 | |
005 | 20170329140509 | |
007 | ta | |
008 | 161229s2017 ulkad bmAC 000c eng | |
040 | ▼a 211009 ▼c 211009 ▼d 211009 | |
085 | 0 | ▼a 0510 ▼2 KDCP |
090 | ▼a 0510 ▼b 6YD36 ▼c 320 | |
100 | 1 | ▼a 이현정 ▼g 李炫姃 |
245 | 1 1 | ▼a (An) energy-efficient tracking methodology for continuous objects in WSNs / ▼d Hyunjung Lee |
260 | ▼a Seoul : ▼b Graduate School, Korea University, ▼c 2017 | |
300 | ▼a xi, 74장 : ▼b 삽화, 도표 ; ▼c 26 cm | |
500 | ▼a 지도교수: 朴明淳 | |
502 | 1 | ▼a 학위논문(박사)-- ▼b 고려대학교 대학원: ▼c 컴퓨터·전파통신공학과, ▼d 2017. 2 |
504 | ▼a 참고문헌: 70-74 | |
530 | ▼a PDF 파일로도 이용가능; ▼c Requires PDF file reader(application/pdf) | |
653 | ▼a continuous object tracking ▼a data aggregation ▼a wireless sensor network | |
776 | 0 | ▼t An Energy-Efficient Tracking Methodology for Continuous Objects in WSNs ▼w (DCOLL211009)000000072070 |
900 | 1 0 | ▼a Lee, Hyun-jung, ▼e 저 |
900 | 1 0 | ▼a 박명순 ▼g 朴明淳, ▼e 지도교수 |
945 | ▼a KLPA |
전자정보
소장정보
No. | 소장처 | 청구기호 | 등록번호 | 도서상태 | 반납예정일 | 예약 | 서비스 |
---|---|---|---|---|---|---|---|
No. 1 | 소장처 과학도서관/학위논문서고/ | 청구기호 0510 6YD36 320 | 등록번호 123055715 | 도서상태 대출가능 | 반납예정일 | 예약 | 서비스 |
컨텐츠정보
초록
Because the non-rechargeable small sensors distributed in dynamic areas affects the lifetime of wireless sensor networks, the research has been actively done to increase energy efficiency by reducing the power consumption of the sensors. One important challenge in this research area is to track continuous object efficiently. Efficient and accurate detection and tracking of continuous objects such as fire and hazardous biochemical material diffusion requires extensive communications between nodes in wireless sensor networks. To improve energy efficiency, previous approaches are to reduce the number of message transfer to the sink node by selecting some nodes among the boundary nodes of continuous objects without consideration of duplicated messages In this paper, we propose a Data Aggregation method to reduce the number of report messages and apply piecewise Quadratic Polynomial Interpolation algorithm to find the boundary points precisely. Simulation results show that the proposed scheme significantly reduces the number of report messages to the sink node and also improves boundary accuracy.
목차
CONTENTS CHAPTER 1. INTRODUCTION 1 1.1 BACKGROUND 1 1.2 OUTLINE 5 CHAPTER 2. RELATED WORKS 6 CHAPTER 3. ENERGY-EFFICIENT TRACKING MTHODOLOGY 14 3.1 PRELIMINARIES 14 3.1.1 Assumptions 14 3.1.2. Definitions 15 3.1.3. BN Accuracy 18 3.2 PROPOSED ENERGY-EFFICIENT TRACKING METHODOLOGY 20 3.2.1. Step 1 : Reportback message to SINK node 22 3.2.1.1. How the messages are sent from RNs to the SINK node 23 3.2.2. Step 2 : Interpolation at SINK node 28 CHAPTER 4. RERFORMANCE EVALUATION 35 4.1. SIMULATION MODEL 37 4.2 PERFORMANCE ANALYSIS ON THE NUMBER OF MESSAGES 40 4.3. PERFORMANCE ANALYSIS ON BN ACCURACY 47 4.3.1. BN Accuracies depending on Sensing range 48 4.3.2. BN Accuracies depending on Diffusion rate 52 4.3.3. BN Accuracies depending on Selection ratio 60 CHAPTER 5. CONCLUSION AND FUTURE WORK 69 REFERENCE 70