Study on the Reliability of ZigBee Network under Interference of WiFi
XU Pengfei
ZHU Li
TAN Jianjun
ZHONG Wanxiong
HUANG Dingyi
Abstract：The systems of WiFi and WSN mainly work in the 2.4 GHz Industrial,Scientific,and Medical (ISM) band.How to effectively avoid the interference is the problem to be solved.In theory,when coexistence happens,it will have a certain degree of interference on each other.In this paper,we mainly research on reliabilities of ZigBee network under WiFi interference.By analyzing the problem of same frequency interference between WiFi and ZigBee in detail,a simulation model which reflects the ZigBee and WiFi coexistence has been introduced.And we have proposed an interference avoidance algorithm under strong interference based on modified frequency agility.The algorithm detects interference and adaptively switches nodes to safe channel to avoid WiFi interference.The performance of ZigBee under WiFi is evaluated in terms of the packet error rate (PER) and bit error rate (BER).The simulation results demonstrate that the design guideline can efficiently mitigate the effect of WiFi interference and enhance the performance of ZigBee networks.
Keywords：WSNsame frequency interferenceenergy scanBERPER
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 198-202 )