改进的同频干扰抑制算法及组网信道优化设计

发布时间：2018-11-25 15:07

【摘要】：移动通信WiFi网络与无线传感网络交叉组网时,容易产生同频干扰,影响通信质量和信道传输性能。在交叉组网过程中需要对同频干扰进行有效抑制,提高通信可靠性。传统的交叉组网同频干扰抑制算法采用盲源分离抗干扰算法,在交叉组网被动相干定位时时延较大,通信出现延迟。针对上述问题,提出一种改进的交叉组网同频干扰抑制算法,采用传统的盲源分离技术进行信道同频带内干扰噪声分离,对WiFi信道进行信息编码,采用OQPSK调制方法让整个网络都切换到选定的无干扰信道上,引入干扰避免机制,实现交叉组网信道优化设计。仿真实验表明,采用该算法进行同频干扰抑制和优化组网设计,有能效抑制重度的同频干扰,提高组网节点的吞吐量,保证了通信的可靠性。
[Abstract]:When the mobile communication WiFi network and wireless sensor network cross network, it is easy to produce the same frequency interference, which will affect the communication quality and channel transmission performance. In order to improve the communication reliability, it is necessary to suppress the interference of the same frequency effectively in the process of cross-networking. Blind source separation and anti-jamming algorithm is used in the traditional interference suppression algorithm of crossover network. The delay is long and the communication delay occurs in the passive coherent location of the crossover network. In order to solve the above problems, an improved co-frequency interference suppression algorithm for crossover networks is proposed. The traditional blind source separation technique is used to separate the interference noise in the same frequency band of the channel and encode the information of the WiFi channel. The OQPSK modulation method is used to switch the whole network to the selected non-interference channel, and the interference avoidance mechanism is introduced to realize the optimal design of the crossover network channel. The simulation results show that the algorithm is used to suppress the interference of the same frequency and to optimize the design of the network, which can efficiently suppress the serious interference of the same frequency, improve the throughput of the nodes, and ensure the reliability of the communication.
【作者单位】：南阳医学高等专科学校网络中心;南阳医学高等专科学校国际教育学院;邯郸市国土资源局;
【基金】：河南省科技攻关计划项目(112102210500)
【分类号】：TN929.5

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