基于发射功率自适应调节的无线通信网抗扰研究  

Anti-interference of Wireless Communication Networks Based on Adaptive Adjustment of Transmitting Power

作　　者：陈焕[1,2] 汪正祥[1] 傅忠云[3] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]上海工业自动化仪表研究院,上海200233 [3]南京航空航天大学金城学院,江苏南京211156

出　　处：《电子科技》2016年第1期71-74,共4页Electronic Science and Technology

摘　　要：为解决智能楼宇中Zig Bee网络与Wi Fi网络之间的干扰问题,通过采用TI公司的CC2530芯片,设计了一种发射功率自适应调节的无线传感器网络节点。文中主要采用试验的方法对不同环境下的Zig Bee节点之间通信的可靠性进行测试,得出通信距离、误包率和接收信号强度指示RSSI之间的关系。利用RSSI作为通信评价因子,根据实际应用环境的变化,自适应地改变Zig Bee通信节点的发射功率。经实验测试,只需RSSI值>-51 d Bm,便可保证干扰环境下的误包率接近为0。A wireless data transmission module using CC2530 from Texas Instruments is introduced for wireless communication network nodes based on adaptive adjustment of transmitting power to solve the interference between Zig Bee network and Wi Fi network in the intelligent building. In this paper,the reliability testing based on testing methods is applied in Zig Bee nodes in the different environments. The relationship of the communication distance,packet loss rate and RSSI（ received signal strength indication） are analyzed. RSSI is used to evaluate the reliability of communication according to the practical application of changes in the environment. Zig Bee nodes based on RSSI can adaptively change the transmitting power. The test shows that a RSSI greater than- 51 d Bm suffices to offer a packet error rate of nearly zero.

关 键 词：Zig Bee网络 WI Fi网络 发射功率 RSSI 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]