Utility Maximization for Delay Constrained QoS in Wireless

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This paper studies the problem of utility maximization for clients with delay based QoS requirements in wireless networks. The authors adopt a model used in a previous work that characterizes the QoS requirements of clients by their delay constraints, channel reliabilities, and timely throughput requirements. In this work, they assume that the utility of a client is a function of the timely throughput it obtains. The authors treat the timely throughput for a client as a tunable parameter by the Access Point (AP), instead of a given value as in the previous work. They then study how the AP should assign timely throughputs to clients so that the total utility of all clients is maximized.