Janczak, Tomasz, et al. “Modulo N Backoff Scheme for Effective QoS Differentiation and Increased Bandwidth Utilization in IEEE 802.11 Networks”. Journal of Telecommunications and Information Technology, vol. 36, no. 2, June 2009, pp. 41-47, https://doi.org/10.26636/jtit.2009.2.926.