Backoff Window Based on Congestion Prediction Algorithm in Wireless Networks

We propose an algorithm to choose a reasonable backoff window based on prediction of the congestion of downstream and upstream nodes. The algorithm listens to the number of consecutive idle slots of the wireless network, then calculates the congestion and feeds it back to the downstream node and upstream node. When sending packets, a reasonable backoff window is chosen, depending on downstream and upstream node congestion. Simulation results show that the proposed approach can provide good performance, high throughput, low collision overhead, and low delay.