Abstract: In order to improve the success rate of data packet transmission in heterogeneous and hierarchical cognitive radio sensor networks, the nodes were divided into sustained-transmission and non-sustained-transmission conditions. The ways of improving the success rate of data packet transmission are more energy consumption and better channel assignment, so that there is a type of centralized channel assignment strategies. At the same time, in order to reduce the energy consumption per bit in information transmission process of nodes, the packet size adaptation mechanism was optimized, ensuring the optimal packet size of non-sustained-transmission nodes. Simulation results demonstrate that the channel assignment strategy and the optimization mechanism improve the efficiency of energy utilization and the performance of network.


论文引用格式：李鑫滨,黄泽群,韩 松等.基于节点持续传输准则的认知传感器网络信道分配策略.电信科学,2015062
Li X B,Huang Z Q,Han S,et al. Channel assignment strategy based on the sustained-transmission rule of nodes in cognitive radio sensor network.Telecommunications Science,2015062