TY - GEN
T1 - Distributed QoS control for link adaptive wireless LANs
AU - Shinkuma, Ryoichi
AU - Maeda, Junpei
AU - Takahashi, Tatsuro
PY - 2005
Y1 - 2005
N2 - In wireless local area networks (WLANs), the necessity of quality-of-service (QoS) control for uplink flows is greater and greater with interactive applications being more popular. It is also important that fairness between flows transmitted by stations with different physical transmission rates is ensured in QoS control for link adaptive WLANs, which is widely used nowadays. In this paper, we propose a novel distributed access scheme to satisfy these requirements, called QC-DCA. QC-DCA adaptively controls the parameters of carrier sense multiple access with collision avoidance (CSMA/CA). QC-CDA has two QoS control functions: guarantee and classification. QC-DCA guarantees target throughputs and packet delays by quickly adjusting CSMA/CA parameters. In QoS classification, the difference of throughputs and packet delays between different QoS classes is maintained. In both of them, QC-DCA solves unfairness caused by difference of transmission rates in the physical layer. We evaluate throughput and delay performances of the proposed scheme through computer simulations. The results verify the viability of the proposed scheme.
AB - In wireless local area networks (WLANs), the necessity of quality-of-service (QoS) control for uplink flows is greater and greater with interactive applications being more popular. It is also important that fairness between flows transmitted by stations with different physical transmission rates is ensured in QoS control for link adaptive WLANs, which is widely used nowadays. In this paper, we propose a novel distributed access scheme to satisfy these requirements, called QC-DCA. QC-DCA adaptively controls the parameters of carrier sense multiple access with collision avoidance (CSMA/CA). QC-CDA has two QoS control functions: guarantee and classification. QC-DCA guarantees target throughputs and packet delays by quickly adjusting CSMA/CA parameters. In QoS classification, the difference of throughputs and packet delays between different QoS classes is maintained. In both of them, QC-DCA solves unfairness caused by difference of transmission rates in the physical layer. We evaluate throughput and delay performances of the proposed scheme through computer simulations. The results verify the viability of the proposed scheme.
UR - http://www.scopus.com/inward/record.url?scp=33845300852&partnerID=8YFLogxK
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U2 - 10.1109/APCC.2005.1554081
DO - 10.1109/APCC.2005.1554081
M3 - Conference contribution
AN - SCOPUS:33845300852
SN - 0780391322
SN - 9780780391321
T3 - 2005 Asia-Pacific Conference on Communications
SP - 362
EP - 366
BT - 2005 Asia-Pacific Conference on Communications
T2 - 2005 Asia-Pacific Conference on Communications
Y2 - 3 October 2005 through 5 October 2005
ER -