Loss of neurons in the cerebral cortex-the surface layer of the brain, which carries out conscious thought, physical perception, and higher-level control of body movements.
The communication protocol is designed in term of three layers: Physicallayer, Media Access Control layer and Logic Link Control layer.
本通信协议分为物理层、介质访问控制层和逻辑链路控制层三层设计。
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The media access control (MAC) protocol of mobile Ad Hoc networks (MANETs) is closely-related with its physics layer, most MAC protocols request the capability of carrier sense in physical layer.