Coexistence of ZIGBEE and WI-FI Frame Control Protocol Simulation Using HMM
Vishank Patel, Sunil Shukla · 2014
In the midst of the coexistence problems for the 2.4-GHz industrial, scientific, and medical (ISM) band, interference between Wi-Fi and IEEE 802.15.4/ZigBee networks in particular has become a dominant problem because of the wide installation of Wi-Fi access points (APs). However, the coexistence of such heterogeneous wireless systems is still an open challenge. Zigbee and Wi-Fi devices are increasingly located in the same environment which makes the coexistence problem more and more challenging and critical. In this paper,1) We learn an HMM (Hidden Markov Model) based on the data traces of the network. With such an HMM model we can accurately characterize the dynamic distribution of the durations of white spaces in different times. 2) Based on the HMM model of the white space and the performance estimation we develop a novel Zigbee frame control protocol called HMM-driven White Space-aware Frame Control Protocol which can obtain the optimal trade-offs between link throughput and packet delivery (data traces). Keywords—HMM, Wi-Fi, Zigbee, White Space