A Novel Multicast Collision Prevention Mechanism for IEEE 802.11

In this letter, we introduce a novel Multicast Collision Prevention (MCP) mechanism for IEEE 802.11 WLANs. The proposed MCP mechanism has been designed following the operation principles of the IEEE 802.11 standard. Our analysis shows that the proposed MCP mechanism effectively improves the reliability and efficiency of the multicast mechanism defined by the IEEE 802.11 standard. Simulation results also show that our proposal properly interoperates with the 802.11 unicast mechanism.