BusySiMOn - A New Protocol for IEEE 802.11 EDCA-Based Ad-Hoc Networks with Hidden Nodes

This article presents a new MAC layer protocol for IEEE 802.11 EDCA-based ad-hoc networks with hidden nodes. The key idea of the proposed solution is based on an intelligent two-step reservation procedure which is combined with the advantages of EDCA service differentiation. The new protocol achieves significant performance improvement for high priority traffic (e.g., Voice) in terms of fairness, throughput and average frame delay. It is also compatible with the IEEE 802.11 standard. The obtained results emphasize the advantages of the new protocol over the currently used four-way handshake mechanism.