The wireless channel in wireless network-on-chip faces serious reliability challenges. The fault-tolerant design of wireless routers has a great impact on the transmission efficiency of the entire network onchip. This paper presents a highly efficient acknowledgement feedback (EF-ACK) fault-tolerant wireless interface design. Several confirmation information is configured in a data packet

which can be transmitted over the wireless channel. Establish a retransmission data buffer at the wireless interface to validate the data in the most efficient manner and to control the retransmission of erroneous data packets. In addition

a network-state-based codec control is proposed

which improves the robustness of the data by means of BCH coding when the network conditions are poor. It can be concluded that the proposed scheme efficiently performs wireless acknowledgment feedback on data with only a small additional area and power consumption overhead and ensures a lower network latency and higher Saturated throughput in the network when the error rate is serious

greatly improving the performance of the network.