摘要： 针对无线传感器网络多节点联合调制识别性能不随节点数目增多而提高的问题，给出一种选择性联合调制识别方法。利用该方法推导出利用表决法和加权表决法进行联合调制识别的前提条件。依据前提条件对监测节点进行筛选，以信噪比为权重对多个监测节点的识别结果进行加权表决。仿真结果表明，该方法在没有过多增加网络通信负载的情况下，有助于提高识别性能。
关键词:
频谱监测,
联合调制识别,
无线传感器网络,
识别率,
加权表决
Abstract: This paper proposes a selective combining modulation recognition method for Wireless Sensor Network(WSN), in which the performance of multi-node combining modulation recognition is not increasing with the number of the nodes. The preparing conditions of combining modulation recognition based on voting algorithm and weighted voting algorithm are presented. And the nodes are selected according to the conditions. Combining modulation recognitions are processed by using the SNR as the weights of the nodes. Simulation results show that this method has an effective improvement in recognition performance in not too much increasing network communication load.
Key words:
spectrum monitoring,
combining modulation recognition,
Wireless Sensor Network(WSN),
recognition rate,
weighted voting
中图分类号:
段皓宇, 李鸥, 胡赟鹏, 刘洋. 基于无线传感器网络的多节点调制识别方法[J]. 计算机工程, 2012, 38(16): 89-92.
DUAN Hao-Yu, LI Ou, HU Bin-Feng, LIU Xiang. Multi-node Modulation Recognition Method Based on Wireless Sensor Network[J]. Computer Engineering, 2012, 38(16): 89-92.