本論文提出一套雙模訊息的發送系統，此系統具有時效性配對和傳送不同訊息等級的機制。當藍牙裝置進入到系統之藍牙服務範圍時，我們會根據其是否在系統定義的有效配對時間內，決定是否要對其做配對，如果是，則我們會直接將要發送的訊息傳送給藍牙裝置; 反之，則要先經過配對才能傳送訊息。另外我們會以集中式的管理記錄藍牙裝置進入藍牙服務範圍的次數，再依照此紀錄發送不同等級的訊息給藍牙裝置。
為了驗證我們的機制，我們在Linux平台實做中央伺服器以及在Window Mobile平台實作中間節點，為了要達到我們提出的機制，我們設計了控制封包與訊息格式，控制封包讓中央伺服器和中間節點間可以互相交換控制訊息;而訊息格式則讓訊息可以經過Wi-Fi和藍牙兩種異質性網路傳送到藍牙裝置上。在實作完成後，我們量測傳送訊息前不需要配對比需要配對可以節省的時間，並測試系統是否會依照藍牙裝置進入藍牙服務範圍的次數來調整傳送訊息的等級。

In the thesis, we propose a dual-mode message delivery system with mechanisms of time constrained paging and multi-class message. The pairing decision depends on the effective pairing time defined by the system when a bluetooth device comes into service range. Within the constrained pairing time, central server can deliver a message to the bluetooth device directly without re-pairing. Otherwise, the bluetooth device has to be paired with an intermediate node before it can receive a message. In addition, we store the number of times that bluetooth devices can move into the service range into a data base in order to send multi-class messages to these bluetooth devices.
To demonstrate the proposed schemes, we implement a central server on Linux system and intermediate nodes on Window Mobile platform. We also design control packets associated with their message formats. Control messages can be exchanged between the central server and the intermediate node by the control packets, and data messages can be transmitted in a heterogeneous network, consisting of bluetooth and Wi-Fi. Finally, we measured the time saved without using pairing procedure and also verified that the system can dynamically adjust the classes of messages according to the number of times that bluetooth devices enter to the service range.

第一章　導論 1
1.1 研究動機 1
1.2 研究方法與步驟 2
1.3 章節介紹 3
第二章　雙模訊息的傳送 4
2.1 藍牙的特性 4
2.2 GOEP 7
2.3 相關研究 7
2.3.1 利用bluetooth與Wi-Fi傳送檔案 7
2.3.2 藍牙應用 9
2.3.3 各種機制的比較 10
2.4 本論文提出的機制 11
第三章　雙模訊息發送系統 12
3.1 系統架構與時序圖 12
3.1.1 系統架構 12
3.1.2 時序圖 14
3.2 中間節點 15
3.2.1 控制封包 15
3.2.1.1 SNP 15
3.2.1.2 MTP 16
3.2.1.3 PMP 17
3.2.1.4 CRM 18
3.2.2 中間節點的控制模組 19
3.2.3 SNP Receiving Module 20
3.2.4 PDL Maintain Module 20
3.2.5 MTP Sending Module 21
3.2.6 CRM Receiving Module 23
3.3 中央伺服器 24
3.3.1 中央伺服器的控制模組 24
3.3.2 SNP Sending Module 24
3.3.3 MTP Receiving and CRM Sending Module 25
3.3.4 PMP Sending Module 26

第四章　Linux實作與結果分析 28
4.1 實驗環境與設備規格 28
4.2 中央伺服器和中間節點的實作 30
4.2.1 中間節點 30
4.2.1.1 SNP Receiving Module 30
4.2.1.2 PDL Maintain Module 30
4.2.1.3 MTP Sending Module 33
4.2.1.4 CRM Receiving Module 36
4.2.2 中央伺服器 38
4.2.2.1 SNP Sending Module 38
4.2.2.2 MTP Receiving and CRM Sending Module 39
4.2.2.3 PMP Sending Module 41
4.3 實作的結果與量測 44
第五章　結論與未來工作 49
5.1 結論 49
5.2 未來工作 50
REFERENCES 51
ACRONYMS 54
INDEX 55

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