The wireless sensor network routing has shortcoming which the data cannot reach in certain topology when completely uses the no state routing based on positional information, namely death points.
基于位置信息的无线传感器网络如果完全采用无状态的方式路由，在某些拓扑结构中存在数据不可到达的缺陷，即死亡点的问题。
Meanwhile, network topology control has a significant impact on the data compression algorithm in the wireless sensor network, which is large-scale, distributed and self-organizing.
同时，无线传感器网络是一种大规模分布式的自组织网络，网络拓扑控制对数据压缩算法影响很大。
There are two main issues about embedded sensor network based on Bluetooth to be resolved: the topology formation arithmetic of Bluetooth scatternet and the design of Bluetooth sensor node system.
基于蓝牙技术的嵌入式传感器网络研究主要解决两个问题：一是蓝牙散射网拓扑结构形成算法的研究；二是嵌入式蓝牙传感器节点的设计。
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