Quality of service differentiation in wireless networks
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United States of America Patent
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-
Aug 30, 2005
Grant Date -
Sep 2, 2004
app pub date -
Feb 27, 2003
filing date -
Feb 27, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method provides differentiated quality of service (QoS) by providing adaptive updates to media access control (MAC) layer parameters on a distributed basis. The method includes calculating a failure probability for a transmission over the network, determining a target value for determining a contention window according to a mapped function of the failure probability, and altering the contention window according to a scaling function of the target value. The mapped function and the scaling can provide QoS differentiation. A wireless device ensures fairness in a wireless time slotted network and includes a network interface card (NIC), a network driver interface, a network monitor, a statistics engine, and an adaptive parameter engine for determining a target value for determining a contention window according to a mapped function of the one or more probabilities to enable an alteration of the contention window and provide new parameters for the MAC layer.
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