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研究生: 鄭靖諼
JING-SYUAN JHENG
論文名稱: 具有能量收集,常規電池與批次抵達的無線感測器網路研究
A Study on the Wireless Sensor Network with Energy Harvesting, Regular Battery, and Batch Arrivals
指導教授: 鍾順平
Shun-Ping Chung
口試委員: 林永松
Yeong-Sung Lin
王乃堅
Nai-Jian Wang
學位類別: 碩士
Master
系所名稱: 電資學院 - 電機工程系
Department of Electrical Engineering
論文出版年: 2023
畢業學年度: 111
語文別: 英文
論文頁數: 276
中文關鍵詞: 無線感測器網路能量採集常規電池非佔先優先權無耐性批次抵達
外文關鍵詞: wireless sensor network, energy harvesting, regular battery, non-preemptive priority, impatience, batch arrival
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  • 隨著5G網路技術的快速發展,對於無線感測器網路需求不斷增長,他能夠收集、儲存和處理環境訊息,並有著低功耗、低成本、小尺寸、動態組網等特性。近年來在物聯網中,基於能量採集的無線感測器網路受到關注,而能源供應可能是來自太陽能、海洋能、水力、風力或是地熱等再生能源,但收集到的能量可能供不應求,因此我們額外加上一顆常規電池作為輔助能源。而常規電池的壽命也是有限的,為了研究能源消耗和常規電池的壽命之間的關係,我們定義了另外的效能指標“常規能耗比”。基於上述機制,我們進一步考慮了封包可能的屬性,包括非佔先優先權、無耐性,並且為了更貼近真實情形,將封包的抵達程序假設為批次抵達程序。為了簡化計算,我們假設批次抵達包括同時間到達一個封包或是兩個封包。此外,我們研究了兩種情境:(1)僅有一個節點;(2)一個由三節點相連而成的網路。我們透過四維的馬可夫鏈推導出解析模型的平衡方程式,透過迭代演算法得出穩態機率分佈和計算各項效能指標,再研究不同參數對於系統效能的影響。最後,我們使用C語言來撰寫電腦模擬程式,且在大部分的研究案例中,解析結果與模擬結果相當接近。


    With the rapid development of 5G network technology, the demand for Wireless sensor networks (WSNs) continues to grow. Wireless sensor networks are capable of collecting, storing, and processing environmental information, with features such as low power consumption, low cost, small size, and dynamic networking. In recent years, Energy Harvesting-based WSNs have gained attention in the context of the Internet of Things (IoT). The energy supply for these networks may come from renewable sources such as solar energy, ocean energy, hydro energy, wind energy, or geothermal energy. However, the collected energy may not always meet the demand. To address this issue, we introduce an additional regular battery as an auxiliary energy source. The regular battery lifetime is also limited. In order to study the relationship between energy consumption and the lifetime of the regular battery, we define an additional performance metric called "regular energy consumption ratio (RECR)." Based on the aforementioned mechanisms, we further consider the possible attributes of packets, including non-preemptive priority and impatience, and for a more realistic scenario, we assume the packet arrival process to be a batch arrival process. For simplicity, we assume that a batch includes the arrival of one or two packets at a time. Additionally, we study two scenarios: (1) a system with a single node, and (2) a network composed of three interconnected nodes. We derive the balance equations of the analytical model through a four-dimensional Markov chain. We obtain the steady-state probability distribution and calculate various performance metrics using iterative algorithms. We then investigate the impact of different parameters on the system's performance. Finally, we use the C language to write the simulation programs and in the majority of research cases, the analytical results are in good agreement with the simulation results.

    Contents 摘要 I Abstract II 誌謝 III Contents IV List of Figures VI 1. Introduction 1 2. System model 4 2.1 Scenario 1 5 2.2 Scenario 2 5 3. Analytical model 6 3.1 Scenario 1 6 3.1.1 Model diagram 6 3.1.2 State balance equations 7 3.1.3 Iterative algorithm 43 3.1.4 Performance measures 44 3.2 Scenario 2 48 3.2.1 Model diagram 48 3.2.2 State balance equations 49 3.2.3. Iterative algorithm 108 3.2.4. Performance measures 108 4. Simulation model 116 4.1 Scenario 1 116 4.1.1 Main program 116 4.1.2 One-packet HP batch arrival subprogram 116 4.1.3 One-packet LP batch arrival subprogram 117 4.1.4 Two-packet HP batch arrival subprogram 118 4.1.5 Two-packet LP batch arrival subprogram 120 4.1.6 Energy arrival subprogram 121 4.1.7 Impatient subprogram 122 4.1.8 Departure subprogram 123 4.1.9 Performance measures 132 4.2 Scenario 2 136 4.2.1 Main program 136 4.2.2 One-packet HP batch arrival subprogram 136 4.2.3 One-packet LP batch arrival subprogram 138 4.2.4 Two-packet HP batch arrival subprogram 139 4.2.5 Two-packet LP batch arrival subprogram 140 4.2.6 Node-n energy arrival subprogram 141 4.2.7 Packet arrival from node 3 to node n subprogram 142 4.2.8 Node-n impatient subprogram 144 4.2.9 Node-1 departure subprogram 145 4.2.10 Node-2 departure subprogram 146 4.2.11 Node-3 departure subprogram 147 4.2.12 Performance measures 160 5. Numerical results 168 5.1 Scenario 1 168 5.1.1 HP packet arrival rate 170 5.1.2 Comparison of single and batch arrivals 182 5.1.3 Regular battery usage probabilities 191 5.2 Scenario 2 201 5.2.1 HP packet arrival rate 203 5.2.2 Comparison of single and batch arrivals 226 5.2.3 Regular battery usage probabilities 243 6. Conclusions 251 References 252

    References
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    全文公開日期 2025/07/28 (國家圖書館:臺灣博碩士論文系統)
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