| 摘要 |
A method for transmission rate adaptation used in a wireless network. A current transmission rate is selected from a set of predetermined transmission rates. Each of the predetermined transmission rates, R, is associated with a PER (packet error rate) range, which includes a predetermined threshold pair of a high PER threshold, denoted as Q<SUB>H</SUB>(R), and a low PER threshold, denoted as Q<SUB>L</SUB>(R). First, calculate a first estimated PER, denoted as P1(r<SUB>n</SUB>), wherein r<SUB>n </SUB>denotes the current transmission rate. Then, check whether the P1(r<SUB>n</SUB>) is larger than the Q<SUB>H</SUB>(r<SUB>n</SUB>), if yes, reduce the transmission rate. Then, calculate a second estimated PER, denoted as P2(r<SUB>n</SUB>), and check whether the P2(r<SUB>n</SUB>) is smaller than the Q<SUB>L</SUB>(r<SUB>n</SUB>), if yes, increase the transmission rate. And, check whether the P2(r<SUB>n</SUB>) being larger than the Q<SUB>H</SUB>(r<SUB>n</SUB>), if yes, reduce the transmission rate.
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