[[alternative]]Design and implementation of a WLAN and GPRS platform for supporting seamless communication services among bluetooth, WLAN, and GPRS heterogeneous wireless networks

碩士[[abstract]]異質性無線網路的整合，是以不同無線連線技術之間，互相支援，以達到擴大服務範圍。而目前異質性無線網路無隙縫連線系統研究上大多以Mobile IP，Handoff和暫存/轉送封包等方式，以確保封包不遺失的研究為主。本篇論文中，提出智慧型異質無線網路切換模組，強調異質無線網路的整合中，Mobile Station至少存在一個連線。並實作整合802.11無線網路和GPRS異質性無線網路。以Microsoft Windows XP作業系統作為實作平台，建構一控制程式，此應用程式可以任意控制802.11 無線網路卡和GPRS數據卡，存取 802.11無線網路和GPRS網路之能力，若無法存取802.11無線網路時，以建立GPRS網路連線,以達到無隙縫地存取網際網路。[[abstract]]Wireless Internet network service era has already come, it is to provide an alternative to solving limitations of wired medium and to providing users with much convenience on mobility, people can experience such convenience from various wireless technologies which include 802.11 WLAN, GPRS and Bluetooth. Since hand-off problem in between WLAN and GPRS on IP layer have already widely discussed by many papers but rarely discussing this issues of power consumption and connection cost of the WLAN and GPRS connecting to mobile node at the same time. Therefore, the Heterogeneous Wireless Network Switch Model on data link layer is what will be mainly covered and presented in this paper, and the issues on data link layer is realized to include problems of reducing the power consumption and connection cost as well as connecting timing for WLAN or GPRS, which will be implemented by using one application called Heterogeneous Wireless Network Control (HWNC) for easy comprehension. The status will be observed and collected during connection by using the HWNC that is to direct controlling WLAN device and GPRS device on Microsoft Window XP. We will then determine whether the WLAN or GPRS is actively connected according to the final status of HWNC mentioned above.[[tableofcontents]]目錄 1. 緒論 1 1.1. 概論 1 1.2. 研究動機 2 1.3. 目的與方法 3 1.4. 論文架構 5 2. 背景知識 6 2.1. IEEE 802.11 Wireless LANs 6 2.2. 整合封包無線服務 (GPRS) 8 2.3. Windows Software Development 9 2.3.1. Microsoft NDIS Miniport Driver 10 2.3.2. Third Party Protocol Driver 12 2.3.3. Remote Access Service 14 3. 智慧型異質無線網路切換模組 16 3.1. 特性 16 3.2. 存在的問題 17 3.3. 智慧型異質無線網路切換模組 18 3.3.1. 智慧型異質無線網路切換模組的概念 18 3.3.2. 智慧型異質無線網路切換模組的運作方式 19 4. 系統實作 22 4.1. Heterogeneous Wireless Network Control 22 4.2. GPRS控制模組 23 4.3. 802.11無線網路控制模組 24 4.3.1. WLAdapter Class 25 4.3.2. WLControl Class 27 4.4. 連線控制模組 29 4.4.1. 連線控制的決策 29 4.5. 使用者介面的設計 32 5. 結論 35 參考文獻 36 英文論文 A1 圖表目錄 圖一、 淡江大學802.11無線網路建置圖 3 圖二、 無基礎建設模式 7 圖三、 具基礎建設模式 7 圖四、 泛歐式數位行動電話系統架構圖 8 圖五、 整合封包無線服務架構圖 9 圖六、 NDIS函數庫架構圖 10 圖七、 NDIS OIDs 12 圖八、 Windows應用程式存取網路資源和RAWEther方塊圖 13 圖九、 RAS函數 15 圖十、 決定連線介面之優先權 20 圖十一、 連線訊號 21 圖十二、 HWNC架構圖 22 圖十三、 GPRS控制模組 24 圖十四、 WLAdapter Class 25 圖十五、 WLAdapter物件化介面 26 圖十六、 WLControl 方塊圖 27 圖十七、 WLControl Class 28 圖十八、 HWNC連線控制決策圖 30 圖十九、 HWNC系統主畫面 32 圖二十、 802.11連線設定參數輸入介面 34[[note]]學號: 792190141, 學年度: 9