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QoS provisioning in multi-hop IEEE 802.11 networks is very challenging due to the interference nature of wireless medium and the contention-based behavior among neighboring nodes. In such networks, one of the key questions for QoS support is: given a specific topology and traffic condition, how much bandwidth can be utilized along a path in the network without violating QoS demand of existing traffic?...
We propose an analytical model for multi-hop IEEE 802.11 networks to calculate how much bandwidth can be utilized along a path without violating the QoS requirements of existing rate-controlled traffic flows. A notion, "free channel time", which is the time allowed for a wireless link to transmit data, is introduced to analyze the path capacity. To achieve the goal, the proposed model effectively...
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