Fig. 5From: N-DCF: MAC overhead reduction using narrow channel contention in wireless networksThe second approach for privileged access. If node D wins channel 1, D will transmit on channel 1. When node D successfully sends the packet to its receiver and receives an ACK, it acquires the privilege. The privilege ends when another node successfully finishes transaction on channel 1. In the figure, “a” stands for acknowledgmentBack to article page