Method for improving scheduling fairness of signal transmission/reception in a network
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United States of America Patent
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Nov 16, 2004
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N/A
app pub date -
Oct 27, 1999
filing date -
Dec 18, 1998
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Abstract
A method for improving scheduling fairness in using a network may include detecting whether or not a collision occurs during packet transmission in the network having a plurality of nodes; and storing and monitoring signal transmit/receive states before the collision with respect to each of the plurality of nodes; if the collision is detected, reading the previous transmit/receive states with respect to a node having the collision. The previous node state that has been read is judged and newly setting an inter packet gap (IPG) for the node. After waiting for a lapse of the IPG that has been set, a backoff is effected. After waiting for a lapse of the backoff time, a signal of the node that has been collided is retransmitted, and the status of the retransmitted signal of the node is analyzed to determine if the retransmitted signal collided. If the collision is not detected with respect to the retransmitted signal of the node, the signal transmit/receive state of the node is updated. If the collision is detected with respect to the retransmitted signal of the node, the steps of reading and judging the previous node state, newly setting the IPG, effecting the backoff time, retransmitting the signal, and again detecting a collision is repeated.
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