In CSFQ

when there exist adaptive flows there will be error between the measurement value of throughput and its real value

furthermore the fairness is seriously degraded.To resolve the problem

the paper mainly studies that how to improve the accuracy of the computation of α value

and proposes a queue length embedded core-stateless fair queue algorithm (QL-CSFQ).In QL-CSFQ

the queue length is concerned to improve the accuracy of the computation of α value.The paper compares QL-CSFQ to CSFQ in fairness

utilization of bandwidth

the queue length and its jitter using large amount of simulations

and the results show that QL-CSFQ can decrease the impact of measurement error on the fairness.