This paper presents a centralized rate assignment scheme for multi-hop flows in a static IEEE 802.11 wireless network. The rate assignment scheme takes into account not only which flows contend with each other but also how they contend. A centralized arbiter obtains this information, as well as flow requirements, and attempts to maximize aggregate utility under the channel capacity constraints. Centralized resource provisioning eliminates the overhead involved with distributed decision-making and synchronized state-maintenance. The results show that it is possible to control contention, guarantee throughput, and minimize delay, while incurring low overhead.
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