| 摘要 |
In a wireless LAN system, the transaction efficiency may be enhanced. The transmitter station holds the number of transaction successes, the number of transaction failures, the data rate when the transaction is carried out, and the number wait to perform the transaction. The transmitter station determines that the radio wave condition is in the state {WS} from the data rate at which the transaction succeeded; the area covered by the transmitter station is influenced by the hidden terminal by the average rate of the failure transaction, and the area is influenced by the collision terminal from the relation between the number of the wait for the transaction and the data rate. The transmitter station selects an optimum mode for respective conditions.
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