中文摘要：

传统网络切换仅依赖于数据链路层接收的信号强度.最近的研究尝试综合网络各个层次的信息做出更为智能的决策,然而这些参数不容易测量和量化.为了找到最优切换策略,将这些与切换相关的信息分为基本信息、网络信息和用户信息,并提出了基于模糊逻辑的无线网络切换算法,以对不同网络层次的参数进行收集、处理和保存,同时根据这些参数所属类型,设置不同的权重值来适应不同的应用场景,以达到良好的环境感知和符合用户个人偏好的智能选择.系统仿真结果显示,切换准确率和用户期望契合度进一步提高.

英文摘要：

The received signal strength is usually used to assist the handover. More metrics from different network layers have been considered to make intelligent handover. However, most of them cannot be easily measured and quantified. The article categorizes the problems as three types： basic, adaptive and action mode. A multi-layer fuzzy logic based algorithm of context-aware handover was.proposed to handle all the metrics according to their different types. It is guaranteed that the selected access point can match the users＇ preference with fewest interactions. Simulations demonstrate that the algorithm can integrate the multi-layer networking metrics to reduce users＇ interactions effectively.