To improve relatively poor throughput due to the head of Line (HOL) blocking in the input-queued switch, we modify URODL to support a more efficient window-based lookahead scheduling algorithm.

• 而为了改善在输入伫列交换机中因连线头端阻塞而降低的封包处理量，我们亦改善了单点传播循环光延迟线架构使其适用于更具有效率的窗框前瞻式排程演算法。