實現於Android行動裝置上分享行動網路的能源消耗分析

行動裝置電池固有的限制和應用程式每天都會消耗一定的功率，如果行動裝置沒有連接到特定網路，其實大部分的應用程式是很少使用的，所以聰明的利用網路服務往往對行動裝置節能有著很大的影響。目前智慧型行動裝置的操作系統並不提供智慧且靈活地切換不同的網路接口，總是優先考慮到Wi-Fi，無論其連線訊號是否充足，但連接Wi-Fi需要不斷地發送請求、接收回應，這個過程往往就是行動裝置耗電的主要原因。本文的研究目的即是想要探討目前Android作業系統上分享行動數據連線的兩種方式：可攜式Wi-Fi熱點及藍牙網路共用，兩種方式在智慧型行動裝置擔任AP角色時實際使用相同時間後的電源功率消耗比，透過本文開發的能源消耗監控程式收集並記錄兩種方式個別的樣本數據，再利用迴歸分析來生成兩種網路服務的能源模型，以此檢視兩者之間何者較為節省擔任可攜式無線基地台的智慧型行動裝置本身的電量。實驗結果顯示，使用藍牙網路共用來分享無線網路在能源消耗上明顯優於使用Wi-Fi熱點分享無線網路。

關鍵字

行動裝置；能源消耗；迴歸分析； Wi-Fi可攜式無線基地台；藍牙網路共用

並列摘要

The battery limitations and applications of mobile devices will consume some power every day. In fact, most applications are rarely used if the device is not connected to a specific network. So wisely using network services on mobile devices can obviously reduce power consumption. Current device’s operating system does not provide intelligence and flexibility to switch between different network interfaces, and always give high priority to Wi-Fi, regardless of the adequacy of the connection signal. For keeping Wi-Fi connection, a mobile device must constantly send requests and receive responses. This process is often the main reason for device’s power consumption. The purpose of this thesis is to explore power consumptions of two sharing mobile networks, i.e., Portable Wi-Fi hotspot and Bluetooth tethering, on Android operating system by applying a device as the AP role. This thesis first proposes a power consumption monitoring program to record the individual sample data in the above–mentioned two services of sharing mobile networks, and then uses regression analysis to generate and compare energy models of two services. The experiment result shows that the sharing mobile network of Bluetooth tethering outperforms that of Wi-Fi hotspot in terms of power consumption.

並列關鍵字

Mobile Device ； Power Consumption ； Regression Analysis ； Portable Wi-Fi Hotspot ； Bluetooth Tethering

參考文獻

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實現於Android行動裝置上分享行動網路的能源消耗分析

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