Figure 5From: Exploiting programmable architectures for WiFi/ZigBee inter-technology cooperationCollision between WiFi and ZigBee. A WiFi frame interferes with a ZigBee frame because the WiFi radio senses the channel as idle during the long RX-TX turn around time of the ZigBee radio. After this turn around, the ZigBee radio will also start transmitting; but due to the higher transmit power of WiFi, this cannot be seen in the figure.Back to article page