一种基于Android平台的QoS感知WiFi分流系统

An Android-based QoS aware system for WiFi offloading

建立一种基于Android操作系统具有QoS感知能力的WiFi分流系统架构。该系统利用Android系统提供的WiFi类库和方法对用户客户端周围网络信号进行扫描,分流算法依据网络信号、设备状态等QoS参数值大小,选择参数值最大的网络信号为最优网络,并由客户端或服务器端发起分流。实验结果表明,分流系统可为智能终端在复杂的异构网络条件下连接到信号最强最优的网络,较之传统方法该系统更好地满足了用户QoS需求、提高了WiFi分流工作效率。

In order to reduce the data traffic congestion through the mobile network and to improve the mobile network WiFi offloading work efficiency,a WiFi offloading system based on Android operating system with QoS aware ability is developed.The client uses the WiFi libraries and methods provided by the android system to scan the network signals around the user.The offloading algorithm chooses the network signal with the maximum parameter values to be the optimal network according to the network signal,the device state and other QoS parameter values.The offloading is initiated by the client or server.The experimental results show that this system can connect the intelligent terminal to the strongest and the best network under the condition of complex and heterogeneous network.The system is better than the conventional one,satisfies the user QoS requirements and greatly improves the work efficiency of WiFi offloading.