RMAC: a reliable multicast MAC protocol for wireless ad hoc networks

High throughput MAC layer multicasting over time-varying channels

“…Prior research in wireless multicast and broadcast has focused on the transport layer [17,18], network layer [19,20,21,22,23,24,25,26,27] and MAC layer [5,6,7,8,9,10,11,23,28,29,30,31]. Time-varying channels and rate control has been studied by researchers for unicast transmissions [13,14,15].…”

“…As the 802.11 broadcast is unreliable, several protocols [5,7,6,8,9,10,29,30] have been proposed to improve the reliability. Kuri and Kasera [5] proposed a reliable multicast protocol for WLANs.…”

“…This approach is not scalable and is not practical in high-traffic networks. Some MAC layer multicast/broadcast protocols, such as BPBT [8], RMAC [9], and 80211MX [10], use busy-tone to implement multicast reliability. Busy-tones can prevent data frame collisions and solve hidden terminal problem.…”

“…The BMMM [7] approach increases reliability of the MAC layer, but it is not fully scalable. Several approaches [8,9,10] use busy-tone on a separate channel to implement multicast reliability, but the use of a secondary channel increases the hardware complexity. In [11], authors present an approach that tries to increase throughput by enhancing the resource utility in networks.…”

Efficient multicasting over large-scale WLANs through controlled association

“…As the 802.11 broadcast is unreliable, several protocols [9,10,11,12,13,14,15,16] have been proposed to improve reliability. Kuri and Kasera [9] proposed a reliable multicast protocol for WLANs.…”