This brief investigates distributed medium access control (MAC) with Qo S provisioning for both single- and multi-hop wireless networks including wireless local area networks (WLANs), wireless ad hoc networks, and wireless mesh networks.
For WLANs, an efficient MAC scheme and a call admission control algorithm are presented to provide guaranteed Qo S for voice traffic and, at the same time, increase the voice capacity significantly compared with the current WLAN standard. In addition, a novel token-based scheduling scheme is proposed to provide great flexibility and facility to the network service provider for service class management.
Also proposed is a novel busy-tone based distributed MAC scheme for wireless ad hoc networks and a collision-free MAC scheme for wireless mesh networks, respectively, taking the different network characteristics into consideration. The proposed schemes enhance the Qo S provisioning capability to real-time traffic and, at the same time, significantly improve the system throughput and fairness performance for data traffic, as compared with the most popular IEEE 802.11 MAC scheme.
Inhaltsverzeichnis
Introduction.- Literature Review and Background.- Voice Capacity Improvement over Infrastructure WLANs.- Service Differentiation over Ad Hoc WLANs.- Dual Busy-tone MAC for Wireless Ad Hoc Networks.- Collision-free MAC for Wireless Mesh Backbones.- Conclusions.
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