Generalized Mathematical Model of Reliable Multicast Transmission in Modern Wi-Fi Networks

Resumo

Abstract—In modern Wi-Fi networks, a palette of methods specified in the latest version of the IEEE 802.11 standard can be used to provide reliable multicast transmission. According to these methods, which differ in the acknowledgment policy, it is recommended to transmit multicast data in preliminarily reserved time intervals, which allows decreasing packet losses caused by collisions and interference with other network stations. In this paper, we develop a generalized mathematical model of multimedia flow reliable multicasting in periodic time intervals. For any of the multicast methods specified in the IEEE 802.11 standard, the model can be used to find transmission parameters that allow satisfying Quality of Service requirements of the flow with the minimum amount of reserved channel time.