Since the body movement is quite different from other kinds of motion, dynamic topology changes of WBAN are also very different from other WSNs.
由于人体的运动有着不同于其他事物运动的规律，无线体域网的动态拓扑变化必然与其他无线传感器网络拓扑变化有很大不同。
The movements of nodes in the networks lead to dynamic changes of the networks topology.
网内节点的随机移动将会导致网络拓扑的动态变化。
As dynamic changes of topology, position-based routing algorithm and security routing are focuses and key points in this field.
由于拓扑结构的动态变化，位置路由算法和安全路由是其研究的热点和重点。
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