Abstract—ZigBee co-exists with other unlicensed technologies such as Bluetooth, WiFi in the 2.4GHz spectral band. This coexistence scenario is especially unfavorable for ZigBee networks since WiFi has considerably higher transmission power. Even when the ZigBee signal is strong enough to be detected by WiFi, WiFi may perform backoff depending on position of WiFi device with respect to ZigBee device. Simultaneous activity by ZigBee and WiFi will result in errors in the header of ZigBee packet. Error in Header results in loss of ZigBee packet. To overcome such situation, multi-header approach has been suggested in literature. Multiple Headers (MH) reduce the effective throughput. In our work, we propose a scheme that determines the number of headers adaptively based on the presence of heterogeneous networks. MH scheme is effective only if interference is present, allowing for better efficiency and throughput.