Figure 2From: Co-channel interference limitations of OFDM communication-radar networksExamples for medium access: There are two channels ( U = 2). In the first time slot, a node accesses channel 0, which utilizes the even sub-carriers. In the second slot, two nodes access channels u = 0 and u = 1, respectively. Finally, two nodes access the medium on the same channel, causing a collision.Back to article page