Figure 12.8 Space/time model of the collision in CSMA CSMA中冲突的时空模型 B starts C starts at time t at time t2 A B D ti - t2 Area where A's signal exists Area where both signals exist Area where B's signal exists Time Time 12.1512.15 Figure 12.8 Space/time model of the collision in CSMA CSMA中冲突的时空模型