Networks-on-chip (NoC) has attracted agreat attention to resolve the interconnection problem inbillion-transistor era. Network congestion has a negativeeffect on the performance of NoC. In this paper, we propose a novel congestion control method, adaptive traffcscheduling, for application-specific NoC. More precisely,given the traffc profile of the target application, the proposed algorithm automatically allocates the traffc acrossthe on-chip network, so that the network congestion is minimized. The traffc scheduling method can be implementedin both centralized and distributed manner for NoC. Thesimulation results show the performance of traffc scheduling is better than other congestion-control methods, suchas congestion-aware routing.