周承復臺灣大學：資訊工程學研究所徐采琳Hsu, Tsai-linTsai-linHsu2007-11-262018-07-052007-11-262018-07-052006http://ntur.lib.ntu.edu.tw//handle/246246/53858近年來, 無線個人區域網路的出現一個新的發展方向. 不同於之前以高傳輸資料量, 廣泛傳輸距離為主要目標, 新的網路應用瞄準在一個低功率, 短傳輸距離, 簡單即行的網路, 大大降低裝設及使用成本, 更促使標準IEEE 802.15.4的定訂一個共同的規格, 大量應用在工廠製程, 居家環境, 醫療看護方面的監測, 感應控制系統.而如何有效率的使用網路物件能源，是一大議題。 我們提出一個能源使用效率的無線個人網路架構MALE, 採用IEEE 802.15.4標準為低傳輸速率的無線個人區域網路定義的實體層與媒體使用層. 在我們的架構下, 資料封包經由多條途徑傳送以分散每個物件在網路上的所需傳輸的資料量, 避免網路內的物件之間出現能源的使用極度不均的現象, 延長網路的生命週期. 我們並使用探問的機制,用小型封包定取得網路當時的狀況, 動態決定適合當時網路資料量情況的路徑, 以達到最佳化的資料傳輸量, 網路週期, 以及封包傳輸成功率.Recent years, there appears great demands for an inexpensive wireless sensor networks for monitoring or control of non-critical function in residential, commercial, health, and industrial applications. The driven factors behind are either for reduction of installation cost or energy consumption, automation (self-configuring), or government regulations. This urges the fast development of Low-Rate Wireless Personal Area Network, and the standard IEEE 802.15.4, a common specification for its physical layer and medium access protocol sub-layer. We aim at the routing scheme in network layer and propose an energy-efficient routing protocol, applying the Physical Layer (PHY) and Medium Access Control (MAC) specifications for Low-Rate Wireless Personal Area Networks (LR-WPAN) standardized in IEEE 802.15.4 Standard. In our proposed routing protocol, we obtain multiple paths after one route request when first time the traffic session was initiated. During network operation, we deploy small packets as probing agents, sampling those multiple paths’ condition (in this paper, we sample conditions of devices’ residual energy along each path), and accordingly help the source to decide which candidate path to route for coming data packets.TABLE OF CONTENTS Page ABSTRACT ..............................................3 TABLE OF CONTENTS .....................................6 LIST OF TABLES ........................................8 LIST OF FIGURES .......................................9 CHAPTER 1 INTRODUCTION 1.1 BACKGOUND ...................................10 1.2 RESEARCH ISSUE ..............................11 1.3 OUR CONTRIBUTION ............................12 1.4 PAPER ORGANIZATION ..........................13 CHAPTER 2 OVERVIEW OF IEEE 802.15.4 LR-WPAN 2.1 IEEE 802.15 STANDARDS FOR WPAN ..............14 2.2 PROPOSE OF IEEE 802.15.4 LR-WPAN ............16 2.3 SPECIFICATIONS IN IEEE 802.15.4 LR-WPAN .....17 2.4 APPLICATIONS FOR IEEE 802.15.4 LR-WPAN ......21 CHAPTER 3 MALE FRAMEWORK 3.1 MOTIVATION ..................................23 3.2 PROPOSED SOLUTION: MALE (MULTIPATH ADAPTIVE LOW-POWER) ...............................................24 3.3 MALE: BASIC IDEA ............................25 3.4 MALE: ARCHITECURE............................27 3.5 MALE: ALGORITHMS ............................28 CHAPTER 4 PERFORMANCE EVALUATION 4.1 NETWORK SCENARIO ............................35 4.2 MODELS FOR COMPARISON .......................36 4.3 PERFORMANCE MERTICES ........................37 4.4 SIMULATION RESULTS AND DISCUSSION ...........37 CHAPTER 5 CONCLUSION AND FUTURE WORK 5.1 CONCLUSION ..................................43 5.2 FUTURE WORK .................................43 BIBLIOGRAPHY .........................................44910314 bytesapplication/pdfen-US個人區域網路MALEPANLR-WPAN802.15.4thesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/53858/1/ntu-95-R92922044-1.pdf