Enhancement of DCF by multiple data frame transmission scheme based on the number of elapsed contention windows

This paper proposes a new data frame transmission scheme for IEEE 802.11 wireless LAN. IEEE 802.11 wireless LAN employ the binary exponential backoff algorithm to lower the possibility of collisions without reducing efficiency. Unfortunately, it has been shown that the algorithm is, in the short term, highly unfair. To improve the data transmission efficiency, several schemes allow stations to transmit successive frames. Employing these schemes worsens the short-term unfairness. The proposed scheme ties successive transmission to the number of elapsed contention windows to improve the throughput performance without increasing the unfairness. Simulation results show that the proposed scheme achieves high throughput performance while maintaining fairness.