Study of clear channel assessment mechanism for ZigBee packet transmission under Wi-Fi interference

Recent studies have shown that low-power ZigBee based wireless sensor networks (WSN) are vulnerable to the interference generated by Wi-Fi nodes. In this study, the effects of energy detection (ED) mechanism in clear channel assessment (CCA) of ZigBee transmitter under 802.11g Wi-Fi interference have been evaluated through experimentation. To improve the performance of ZigBee packet transmission, a preliminary adaptive mechanism is implemented and evaluated in our testbed.

[1]  Sumit Roy,et al.  WLC46-2: On the Impact of Clear Channel Assessment on MAC Performance , 2006, IEEE Globecom 2006.

[2]  Antonio Pescapè,et al.  A tool for the generation of realistic network workload for emerging networking scenarios , 2012, Comput. Networks.

[3]  A. Kiryushin,et al.  Real-World Performance of Clear Channel Assessment in 802.15.4 Wireless Sensor Networks , 2008, 2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008).

[4]  Janne Riihijärvi,et al.  Interference Measurements on Performance Degradation between Colocated IEEE 802.11g/n and IEEE 802.15.4 Networks , 2007, Sixth International Conference on Networking (ICN'07).

[5]  M. Terre,et al.  Impact of Clear Channel Assessment Mode on the Performance of ZigBee Operating in a WiFi Environment , 2006, 2006 1st Workshop on Operator-Assisted (Wireless Mesh) Community Networks.

[6]  Wei Yuan,et al.  Adaptive CCA for IEEE 802.15.4 Wireless Sensor Networks to Mitigate Interference , 2010, 2010 IEEE Wireless Communication and Networking Conference.

[7]  T. Hattori,et al.  A Proposal of the Co-existence MAC of IEEE 802.11b/g and 802.15.4 used for The Wireless Sensor Network , 2006, 2006 5th IEEE Conference on Sensors.

[8]  Chi-Ming Wong,et al.  An additional clear channel assessment for IEEE 802.15.4 slotted CSMA/CA networks , 2010, 2010 IEEE International Conference on Communication Systems.

[9]  Matteo Bertocco,et al.  Experimental Study of Coexistence Issues Between IEEE 802.11b and IEEE 802.15.4 Wireless Networks , 2008, IEEE Transactions on Instrumentation and Measurement.